BQS Organic Blind Sample Program
Analytes by Multiple Methods
METFORMIN

 Pct Recovery = 152% 
 Schedule Code = 2440  Pct Recovery = 279% 
 Schedule Code = 2440  Pct Recovery = 13% 
 Schedule Code = 2440  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = LC9017 
 Minimum Whisker = 37% 
 First Quartile = 46% 
 Median = 61% 
 Third Quartile = 97% 
 Maximum Whisker = 131% 
 Mean = 71% 
 Standard Deviation = 29% 
 Number of Observations = 16  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Schedule Code = 2440 
 Minimum Whisker = 22% 
 First Quartile = 53% 
 Median = 67% 
 Third Quartile = 78% 
 Maximum Whisker = 110% 
 Mean = 68% 
 Standard Deviation = 29% 
 Number of Observations = 107  Y = 1
The SGPlot Procedure

BQS Organic Blind Sample Program
Analytes by Multiple Methods
METFORMIN

 spikemix = Spex Organics T1120802015: 40 µl 
 Expected Conc. = 50 
 Lab Value = 35.400 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 40 µl & ERA 0507-12-06.1: 40 µl 
 Expected Conc. = 50 
 Lab Value = 46.400 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & Abs 071112: 20 µl 
 Expected Conc. = 25 
 Lab Value = 19.600 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & Abs 071112: 20 µl 
 Expected Conc. = 25 
 Lab Value = 22.200 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & Abs 071112: 20 µl 
 Expected Conc. = 25 
 Lab Value = 27.200 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 40 µl 
 Expected Conc. = 52.5 
 Lab Value = 26.100 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 20 µl 
 Expected Conc. = 26.25 
 Lab Value = 34.400 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 10 µl 
 Expected Conc. = 13.125 
 Lab Value = 6.110 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 40 µl 
 Expected Conc. = 52.5 
 Lab Value = 53.300 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 20 µl 
 Expected Conc. = 26.25 
 Lab Value = 11.900 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 20 µl & ERA 0507-12-06.1: 20 µl 
 Expected Conc. = 26.25 
 Lab Value = 9.830 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 15 µl & Abs 071112: 15 µl 
 Expected Conc. = 19.688 
 Lab Value = 9.770 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 15 µl & Abs 060112: 15 µl 
 Expected Conc. = 19.688 
 Lab Value = 8.390 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 40 µl & Abs 060112: 40 µl 
 Expected Conc. = 52.5 
 Lab Value = 27.000 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 15 µl & Abs 053112: 15 µl 
 Expected Conc. = 19.688 
 Lab Value = 8.850 
 reportunit = ng/L  spikemix = Abs 060112: 10 µl & Spex Organics T1120802015: 10 µl 
 Expected Conc. = 12.5 
 Lab Value = 12.800 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & ERA 0507-12-06.2: 20 µl 
 Expected Conc. = 25 
 Lab Value = 19.500 
 reportunit = ng/L  spikemix = ERA 06281704: 20 µl & ERA 06281702: 20 µl 
 Expected Conc. = 26.2 
 Lab Value = 24.400 
 reportunit = ng/L  spikemix = ERA 06281704: 50 µl & ERA 06281702: 50 µl 
 Expected Conc. = 65.5 
 Lab Value = 62.400 
 reportunit = ng/L  spikemix = ERA 06281704: 20 µl & Abs 072517Pharm1: 20 µl 
 Expected Conc. = 26 
 Lab Value = 39.400 
 reportunit = ng/L  spikemix = ERA 06281702: 80 µl & ERA 06281703: 80 µl 
 Expected Conc. = 104.8 
 Lab Value = 65.200 
 reportunit = ng/L  spikemix = ERA 06281702: 50 µl & ERA 06281703: 50 µl 
 Expected Conc. = 65.5 
 Lab Value = 50.100 
 reportunit = ng/L  spikemix = ERA 06281702: 20 µl & Abs 072517Pharm2: 20 µl 
 Expected Conc. = 26.2 
 Lab Value = 28.700 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 21.400 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 20.200 
 reportunit = ng/L  spikemix = ERA 04281603: 80 µl & Crescent EN160610015: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 43.000 
 reportunit = ng/L  spikemix = ERA 04281603: 80 µl & Crescent EN160610015: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 43.900 
 reportunit = ng/L  spikemix = ERA 04281603: 100 µl & Abs 060916PHARM: 100 µl 
 Expected Conc. = 82.3 
 Lab Value = 63.800 
 reportunit = ng/L  spikemix = ERA 04281603: 100 µl & Abs 060916PHARM: 100 µl 
 Expected Conc. = 82.3 
 Lab Value = 60.800 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 18.400 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 19.300 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 4.330 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 10.800 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 80 µl & ERA 0406-15-07A: 80 µl 
 Expected Conc. = 78.16 
 Lab Value = 60.600 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 20 µl & Abs 050115: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 10.400 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 40 µl & Abs 050115: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 14.100 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 20 µl & ERA 0406-15-09: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 10.500 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 20 µl & ERA 0406-15-08: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 16.500 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 20 µl & ERA 0406-15-08: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 2.480 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 40 µl & ERA 0406-15-08: 40 µl 
 Expected Conc. = 39.08 
 Lab Value = 22.900 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 80 µl & Abs 051315: 80 µl 
 Expected Conc. = 78.16 
 Lab Value = 46.500 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 15 µl & ERA 0318-14-02: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 28.900 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 60 µl & ERA 0318-14-02: 60 µl 
 Expected Conc. = 52.2 
 Lab Value = 33.700 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 15 µl & Abs 041614: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 29.600 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 15 µl & Abs 041614: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 31.600 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 8 µl & Abs 041614: 8 µl 
 Expected Conc. = 27.84 
 Lab Value = 15.000 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 60 µl & ERA 0319-14-05: 60 µl 
 Expected Conc. = 52.2 
 Lab Value = 22.200 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 30 µl & ERA 0319-14-05: 30 µl 
 Expected Conc. = 26.1 
 Lab Value = 8.610 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 30 µl & ERA 0319-14-05: 30 µl 
 Expected Conc. = 26.1 
 Lab Value = 11.900 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 8 µl & Abs 041814: 8 µl 
 Expected Conc. = 28.096 
 Lab Value = 19.100 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 15 µl & Abs 041814: 15 µl 
 Expected Conc. = 52.68 
 Lab Value = 36.700 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 8 µl & Abs 041814: 8 µl 
 Expected Conc. = 28.096 
 Lab Value = 14.500 
 reportunit = ng/L  spikemix = ERA 0318-14-02: 30 µl & ERA 0319-14-05: 30 µl 
 Expected Conc. = 26.1 
 Lab Value = 15.300 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 22.000 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 26.800 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 28.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 100 µl & ERA 04281604: 100 µl 
 Expected Conc. = 82.9 
 Lab Value = 64.300 
 reportunit = ng/L  spikemix = Crescent EN160610015: 100 µl & ERA 04281604: 100 µl 
 Expected Conc. = 82.9 
 Lab Value = 61.100 
 reportunit = ng/L  spikemix = Crescent EN160610015: 80 µl & ERA 04281603: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 41.500 
 reportunit = ng/L  spikemix = Crescent EN160610015: 80 µl & ERA 04281603: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 46.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & Abs 061516PHARM: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 23.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 20.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 22.400 
 reportunit = ng/L  spikemix = Crescent EN160610015: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 56.400 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 50 µl & ERA 06281703: 50 µl 
 Expected Conc. = 65 
 Lab Value = 66.900 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 80 µl & ERA 06281703: 80 µl 
 Expected Conc. = 104 
 Lab Value = 105.000 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 20 µl & Abs 072517Pharm2: 20 µl 
 Expected Conc. = 26 
 Lab Value = 24.000 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 50 µl & Abs 072517Pharm2: 50 µl 
 Expected Conc. = 65 
 Lab Value = 56.700 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 50 µl & Abs 071817Pharm: 50 µl 
 Expected Conc. = 65 
 Lab Value = 45.600 
 reportunit = ng/L  spikemix = Abs 071817Pharm: 20 µl & ERA 06281702: 20 µl 
 Expected Conc. = 26.2 
 Lab Value = 73.100 
 reportunit = ng/L  spikemix = Abs 071817Pharm: 50 µl & Abs 072517Pharm1: 50 µl 
 Expected Conc. = 65 
 Lab Value = 59.700 
 reportunit = ng/L  spikemix = Abs 071817Pharm: 80 µl & Abs 072517Pharm1: 80 µl 
 Expected Conc. = 104 
 Lab Value = 85.700 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 26.900 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 30.200 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 24.800 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 27.100 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 80 µl & Abs 060916PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 43.700 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 80 µl & Abs 060916PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 48.200 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 24.000 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 25.500 
 reportunit = ng/L  spikemix = Abs 061416: 80 µl & Crescent EN160610015: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 55.100 
 reportunit = ng/L  spikemix = Abs 061416: 80 µl & Abs 060916PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 43.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 15.200 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 16.500 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 24.000 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 20.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 20 µl & Abs 071817Pharm: 20 µl 
 Expected Conc. = 16.46 
 Lab Value = 8.010 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061516PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 53.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 53.700 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 43.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 19.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 21.700 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 50.700 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 49.100 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 10.100 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 9.320 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 18.100 
 reportunit = ng/L  spikemix = Abs 052215: 40 µl & ERA 0406-15-07A: 40 µl 
 Expected Conc. = 39.08 
 Lab Value = 28.300 
 reportunit = ng/L  spikemix = Abs 052215: 40 µl & Abs 050115: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 15.700 
 reportunit = ng/L  spikemix = Abs 052215: 80 µl & Abs 050115: 80 µl 
 Expected Conc. = 78.733 
 Lab Value = 37.700 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & Abs 050115: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 7.790 
 reportunit = ng/L  spikemix = Abs 051315: 20 µl & Abs 050115: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 8.540 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & ERA 0406-15-08: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 12.200 
 reportunit = ng/L  spikemix = Abs 050115: 80 µl & ERA 0406-15-08: 80 µl 
 Expected Conc. = 78.733 
 Lab Value = 33.100 
 reportunit = ng/L  spikemix = Abs 050115: 20 µl & ERA 0406-15-08: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 13.400 
 reportunit = ng/L  spikemix = Abs 050115: 20 µl & Abs 052215: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 5.170 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & Abs 051315: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 16.900 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & Abs 051315: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 14.800 
 reportunit = ng/L  spikemix = Abs 050115: 20 µl & Abs 051315: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 7.680 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & Abs 051315: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 16.300 
 reportunit = ng/L  spikemix = Abs 041814: 15 µl & ERA 0318-14-02: 15 µl 
 Expected Conc. = 52.68 
 Lab Value = 38.700 
 reportunit = ng/L  spikemix = Abs 041814: 8 µl & ERA 0318-14-02: 8 µl 
 Expected Conc. = 28.096 
 Lab Value = 21.000 
 reportunit = ng/L  spikemix = Abs 041814: 30 µl & ERA 0318-14-02: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 18.500 
 reportunit = ng/L  spikemix = Abs 041814: 30 µl & Abs 041614: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 13.400 
 reportunit = ng/L  spikemix = Abs 041814: 60 µl & Abs 041614: 60 µl 
 Expected Conc. = 52.68 
 Lab Value = 44.600 
 reportunit = ng/L  spikemix = Abs 041814: 30 µl & Abs 041614: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 25.200 
 reportunit = ng/L  spikemix = Abs 041714: 15 µl & ERA 0319-14-05: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 26.600 
 reportunit = ng/L  spikemix = Abs 041714: 15 µl & ERA 0319-14-05: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 36.100 
 reportunit = ng/L  spikemix = Abs 041714: 15 µl & ERA 0319-14-05: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 28.300 
 reportunit = ng/L  spikemix = Abs 041714: 8 µl & ERA 0319-14-05: 8 µl 
 Expected Conc. = 27.84 
 Lab Value = 13.900 
 reportunit = ng/L  spikemix = Abs 041714: 30 µl & Abs 041814: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 18.400 
 reportunit = ng/L  spikemix = Abs 041714: 60 µl & Abs 041814: 60 µl 
 Expected Conc. = 52.68 
 Lab Value = 28.800 
 reportunit = ng/L  spikemix = Abs 041714: 60 µl & Abs 041814: 60 µl 
 Expected Conc. = 52.68 
 Lab Value = 47.200 
 reportunit = ng/L  Y = 1
The SGPlot Procedure

BQS Organic Blind Sample Program
Analytes by Multiple Methods
METFORMIN

 spikemix = Spex Organics T1120802015: 40 µl 
 Expected Conc. = 50 
 Lab Value = 35.400 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 40 µl & ERA 0507-12-06.1: 40 µl 
 Expected Conc. = 50 
 Lab Value = 46.400 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & Abs 071112: 20 µl 
 Expected Conc. = 25 
 Lab Value = 19.600 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & Abs 071112: 20 µl 
 Expected Conc. = 25 
 Lab Value = 22.200 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & Abs 071112: 20 µl 
 Expected Conc. = 25 
 Lab Value = 27.200 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 40 µl 
 Expected Conc. = 52.5 
 Lab Value = 26.100 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 20 µl 
 Expected Conc. = 26.25 
 Lab Value = 34.400 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 10 µl 
 Expected Conc. = 13.125 
 Lab Value = 6.110 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 40 µl 
 Expected Conc. = 52.5 
 Lab Value = 53.300 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 20 µl 
 Expected Conc. = 26.25 
 Lab Value = 11.900 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 20 µl & ERA 0507-12-06.1: 20 µl 
 Expected Conc. = 26.25 
 Lab Value = 9.830 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 15 µl & Abs 071112: 15 µl 
 Expected Conc. = 19.688 
 Lab Value = 9.770 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 15 µl & Abs 060112: 15 µl 
 Expected Conc. = 19.688 
 Lab Value = 8.390 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 40 µl & Abs 060112: 40 µl 
 Expected Conc. = 52.5 
 Lab Value = 27.000 
 reportunit = ng/L  spikemix = ERA 0823-11-05.1: 15 µl & Abs 053112: 15 µl 
 Expected Conc. = 19.688 
 Lab Value = 8.850 
 reportunit = ng/L  spikemix = Abs 060112: 10 µl & Spex Organics T1120802015: 10 µl 
 Expected Conc. = 12.5 
 Lab Value = 12.800 
 reportunit = ng/L  spikemix = Spex Organics T1120802015: 20 µl & ERA 0507-12-06.2: 20 µl 
 Expected Conc. = 25 
 Lab Value = 19.500 
 reportunit = ng/L  spikemix = ERA 06281704: 20 µl & ERA 06281702: 20 µl 
 Expected Conc. = 26.2 
 Lab Value = 24.400 
 reportunit = ng/L  spikemix = ERA 06281704: 50 µl & ERA 06281702: 50 µl 
 Expected Conc. = 65.5 
 Lab Value = 62.400 
 reportunit = ng/L  spikemix = ERA 06281704: 20 µl & Abs 072517Pharm1: 20 µl 
 Expected Conc. = 26 
 Lab Value = 39.400 
 reportunit = ng/L  spikemix = ERA 06281702: 80 µl & ERA 06281703: 80 µl 
 Expected Conc. = 104.8 
 Lab Value = 65.200 
 reportunit = ng/L  spikemix = ERA 06281702: 50 µl & ERA 06281703: 50 µl 
 Expected Conc. = 65.5 
 Lab Value = 50.100 
 reportunit = ng/L  spikemix = ERA 06281702: 20 µl & Abs 072517Pharm2: 20 µl 
 Expected Conc. = 26.2 
 Lab Value = 28.700 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 21.400 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 20.200 
 reportunit = ng/L  spikemix = ERA 04281603: 80 µl & Crescent EN160610015: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 43.000 
 reportunit = ng/L  spikemix = ERA 04281603: 80 µl & Crescent EN160610015: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 43.900 
 reportunit = ng/L  spikemix = ERA 04281603: 100 µl & Abs 060916PHARM: 100 µl 
 Expected Conc. = 82.3 
 Lab Value = 63.800 
 reportunit = ng/L  spikemix = ERA 04281603: 100 µl & Abs 060916PHARM: 100 µl 
 Expected Conc. = 82.3 
 Lab Value = 60.800 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 18.400 
 reportunit = ng/L  spikemix = ERA 04281603: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 19.300 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 4.330 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 10.800 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 80 µl & ERA 0406-15-07A: 80 µl 
 Expected Conc. = 78.16 
 Lab Value = 60.600 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 20 µl & Abs 050115: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 10.400 
 reportunit = ng/L  spikemix = ERA 0406-15-09: 40 µl & Abs 050115: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 14.100 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 20 µl & ERA 0406-15-09: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 10.500 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 20 µl & ERA 0406-15-08: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 16.500 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 20 µl & ERA 0406-15-08: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 2.480 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 40 µl & ERA 0406-15-08: 40 µl 
 Expected Conc. = 39.08 
 Lab Value = 22.900 
 reportunit = ng/L  spikemix = ERA 0406-15-07A: 80 µl & Abs 051315: 80 µl 
 Expected Conc. = 78.16 
 Lab Value = 46.500 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 15 µl & ERA 0318-14-02: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 28.900 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 60 µl & ERA 0318-14-02: 60 µl 
 Expected Conc. = 52.2 
 Lab Value = 33.700 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 15 µl & Abs 041614: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 29.600 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 15 µl & Abs 041614: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 31.600 
 reportunit = ng/L  spikemix = ERA 0319-14-05: 8 µl & Abs 041614: 8 µl 
 Expected Conc. = 27.84 
 Lab Value = 15.000 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 60 µl & ERA 0319-14-05: 60 µl 
 Expected Conc. = 52.2 
 Lab Value = 22.200 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 30 µl & ERA 0319-14-05: 30 µl 
 Expected Conc. = 26.1 
 Lab Value = 8.610 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 30 µl & ERA 0319-14-05: 30 µl 
 Expected Conc. = 26.1 
 Lab Value = 11.900 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 8 µl & Abs 041814: 8 µl 
 Expected Conc. = 28.096 
 Lab Value = 19.100 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 15 µl & Abs 041814: 15 µl 
 Expected Conc. = 52.68 
 Lab Value = 36.700 
 reportunit = ng/L  spikemix = ERA 0319-14-04: 8 µl & Abs 041814: 8 µl 
 Expected Conc. = 28.096 
 Lab Value = 14.500 
 reportunit = ng/L  spikemix = ERA 0318-14-02: 30 µl & ERA 0319-14-05: 30 µl 
 Expected Conc. = 26.1 
 Lab Value = 15.300 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 22.000 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 26.800 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 28.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 100 µl & ERA 04281604: 100 µl 
 Expected Conc. = 82.9 
 Lab Value = 64.300 
 reportunit = ng/L  spikemix = Crescent EN160610015: 100 µl & ERA 04281604: 100 µl 
 Expected Conc. = 82.9 
 Lab Value = 61.100 
 reportunit = ng/L  spikemix = Crescent EN160610015: 80 µl & ERA 04281603: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 41.500 
 reportunit = ng/L  spikemix = Crescent EN160610015: 80 µl & ERA 04281603: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 46.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & Abs 061516PHARM: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 23.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 20.600 
 reportunit = ng/L  spikemix = Crescent EN160610015: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 22.400 
 reportunit = ng/L  spikemix = Crescent EN160610015: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 56.400 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 50 µl & ERA 06281703: 50 µl 
 Expected Conc. = 65 
 Lab Value = 66.900 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 80 µl & ERA 06281703: 80 µl 
 Expected Conc. = 104 
 Lab Value = 105.000 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 20 µl & Abs 072517Pharm2: 20 µl 
 Expected Conc. = 26 
 Lab Value = 24.000 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 50 µl & Abs 072517Pharm2: 50 µl 
 Expected Conc. = 65 
 Lab Value = 56.700 
 reportunit = ng/L  spikemix = Abs 072517Pharm1: 50 µl & Abs 071817Pharm: 50 µl 
 Expected Conc. = 65 
 Lab Value = 45.600 
 reportunit = ng/L  spikemix = Abs 071817Pharm: 20 µl & ERA 06281702: 20 µl 
 Expected Conc. = 26.2 
 Lab Value = 73.100 
 reportunit = ng/L  spikemix = Abs 071817Pharm: 50 µl & Abs 072517Pharm1: 50 µl 
 Expected Conc. = 65 
 Lab Value = 59.700 
 reportunit = ng/L  spikemix = Abs 071817Pharm: 80 µl & Abs 072517Pharm1: 80 µl 
 Expected Conc. = 104 
 Lab Value = 85.700 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 26.900 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 30.200 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 24.800 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Crescent EN160610015: 40 µl 
 Expected Conc. = 33.16 
 Lab Value = 27.100 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 80 µl & Abs 060916PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 43.700 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 80 µl & Abs 060916PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 48.200 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 24.000 
 reportunit = ng/L  spikemix = Abs 061516PHARM: 40 µl & Abs 060916PHARM: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 25.500 
 reportunit = ng/L  spikemix = Abs 061416: 80 µl & Crescent EN160610015: 80 µl 
 Expected Conc. = 66.32 
 Lab Value = 55.100 
 reportunit = ng/L  spikemix = Abs 061416: 80 µl & Abs 060916PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 43.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 15.200 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 16.500 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 24.000 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & ERA 04281604: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 20.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 20 µl & Abs 071817Pharm: 20 µl 
 Expected Conc. = 16.46 
 Lab Value = 8.010 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061516PHARM: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 53.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 53.700 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 43.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 19.900 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 40 µl & Abs 061416: 40 µl 
 Expected Conc. = 32.92 
 Lab Value = 21.700 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 50.700 
 reportunit = ng/L  spikemix = Abs 060916PHARM: 80 µl & Abs 061416: 80 µl 
 Expected Conc. = 65.84 
 Lab Value = 49.100 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 10.100 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 9.320 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & ERA 0406-15-07A: 20 µl 
 Expected Conc. = 19.54 
 Lab Value = 18.100 
 reportunit = ng/L  spikemix = Abs 052215: 40 µl & ERA 0406-15-07A: 40 µl 
 Expected Conc. = 39.08 
 Lab Value = 28.300 
 reportunit = ng/L  spikemix = Abs 052215: 40 µl & Abs 050115: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 15.700 
 reportunit = ng/L  spikemix = Abs 052215: 80 µl & Abs 050115: 80 µl 
 Expected Conc. = 78.733 
 Lab Value = 37.700 
 reportunit = ng/L  spikemix = Abs 052215: 20 µl & Abs 050115: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 7.790 
 reportunit = ng/L  spikemix = Abs 051315: 20 µl & Abs 050115: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 8.540 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & ERA 0406-15-08: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 12.200 
 reportunit = ng/L  spikemix = Abs 050115: 80 µl & ERA 0406-15-08: 80 µl 
 Expected Conc. = 78.733 
 Lab Value = 33.100 
 reportunit = ng/L  spikemix = Abs 050115: 20 µl & ERA 0406-15-08: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 13.400 
 reportunit = ng/L  spikemix = Abs 050115: 20 µl & Abs 052215: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 5.170 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & Abs 051315: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 16.900 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & Abs 051315: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 14.800 
 reportunit = ng/L  spikemix = Abs 050115: 20 µl & Abs 051315: 20 µl 
 Expected Conc. = 19.683 
 Lab Value = 7.680 
 reportunit = ng/L  spikemix = Abs 050115: 40 µl & Abs 051315: 40 µl 
 Expected Conc. = 39.366 
 Lab Value = 16.300 
 reportunit = ng/L  spikemix = Abs 041814: 15 µl & ERA 0318-14-02: 15 µl 
 Expected Conc. = 52.68 
 Lab Value = 38.700 
 reportunit = ng/L  spikemix = Abs 041814: 8 µl & ERA 0318-14-02: 8 µl 
 Expected Conc. = 28.096 
 Lab Value = 21.000 
 reportunit = ng/L  spikemix = Abs 041814: 30 µl & ERA 0318-14-02: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 18.500 
 reportunit = ng/L  spikemix = Abs 041814: 30 µl & Abs 041614: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 13.400 
 reportunit = ng/L  spikemix = Abs 041814: 60 µl & Abs 041614: 60 µl 
 Expected Conc. = 52.68 
 Lab Value = 44.600 
 reportunit = ng/L  spikemix = Abs 041814: 30 µl & Abs 041614: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 25.200 
 reportunit = ng/L  spikemix = Abs 041714: 15 µl & ERA 0319-14-05: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 26.600 
 reportunit = ng/L  spikemix = Abs 041714: 15 µl & ERA 0319-14-05: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 36.100 
 reportunit = ng/L  spikemix = Abs 041714: 15 µl & ERA 0319-14-05: 15 µl 
 Expected Conc. = 52.2 
 Lab Value = 28.300 
 reportunit = ng/L  spikemix = Abs 041714: 8 µl & ERA 0319-14-05: 8 µl 
 Expected Conc. = 27.84 
 Lab Value = 13.900 
 reportunit = ng/L  spikemix = Abs 041714: 30 µl & Abs 041814: 30 µl 
 Expected Conc. = 26.34 
 Lab Value = 18.400 
 reportunit = ng/L  spikemix = Abs 041714: 60 µl & Abs 041814: 60 µl 
 Expected Conc. = 52.68 
 Lab Value = 28.800 
 reportunit = ng/L  spikemix = Abs 041714: 60 µl & Abs 041814: 60 µl 
 Expected Conc. = 52.68 
 Lab Value = 47.200 
 reportunit = ng/L  Y = 1
The SGPlot Procedure