BQS Organic Blind Sample Project
False Positive and Negative Report for
Method: 4437

Analyte TestIDCode CASNumber # Samples
Spiked		 # False
Negatives		 # Samples
Not Spiked		 # False
Positives
1,1-DICHLORO-2-PROPANONE 80336GM016 513-88-2 21 0 10 1
1,2,3-TRICHLOROPROPANE 77443GM016 96-18-4 20 0 11 0
1,2-DIBROMO-3-CHLOROPROPANE 82625GM016 96-12-8 22 0 9 0
1,2-DIBROMOETHANE 77651GM016 106-93-4 19 0 12 1
1,2-DICHLOROPROPANE 34541GM016 78-87-5 22 0 9 0
1,3-DIOXOLANE 81583GM016 646-06-0 21 0 9 0
1,4-DIOXANE 81582GM016 123-91-1 19 0 12 1
1-OCTANOL 77310GM016 111-87-5 22 0 9 0
1METHOXY-4(2-PROPENYL)BENZENE 68066GM016 140-67-0 20 0 11 0
2-ETHOXYETHYL ACETATE 68728GM016 111-15-9 20 0 11 0
2-HEXANONE, 5-METHYL- 77179GM016 110-12-3 19 0 12 1
2-NITROPROPANE 77076GM016 79-46-9 20 0 11 0
2-PENTANOL, 4-METHYL- 77113GM016 108-11-2 19 0 12 1
2-PROPEN-1-OL 68729GM016 107-18-6 20 2 11 0
4-HEPTANONE, 2,6-DIMETHYL- 77419GM016 108-83-8 19 0 12 1
ACETATE, ETHYL 81585GM016 141-78-6 19 1 12 7
ACETATE, ISOBUTYL 77201GM016 110-19-0 20 0 11 0
ACETATE, ISOPROPYL 45013GM016 108-21-4 22 0 9 0
ACETATE, PROPYL 45022GM016 109-60-4 22 0 9 0
ACETONITRILE 76997GM016 75-05-8 20 0 11 3
ACROLEIN 34210GM016 107-02-8 9 0 22 0
ALPHA-TERPINEOL 68730GM016 98-55-5 21 0 10 0
BUTANAL 68732GM016 123-72-8 20 0 11 0
BUTANOL 77034GM016 71-36-3 21 1 10 1
CHLOROPICRIN 77548GM016 76-06-2 20 0 11 0
CYCLOHEXANONE 77097GM016 108-94-1 20 0 11 0
DIETHYLAMINE, N-NITROSO- 78200GM016 55-18-5 19 0 12 1
DIMETHOXYMETHANE 81578GM016 109-87-5 20 0 11 4
HEXACHLOROCYCLOPENTADIENE 34386GM016 77-47-4 19 0 12 1
HEXANOL, 2-ETHYL- 77311GM016 104-76-7 20 0 11 0
ISOPHORONE 34408GM016 78-59-1 22 0 9 0
ISOPROPYL ALCOHOL 77015GM016 67-63-0 20 0 11 3
METHYL ACETATE 77032GM016 79-20-9 22 0 9 4
N-PENTANAL 77061GM016 110-62-3 17 0 14 0
NITROBENZENE 34447GM016 98-95-3 22 0 9 0
TERT-BUTYL ALCOHOL 77035GM016 75-65-0 20 0 11 0
TERT-BUTYL METHYL ETHER (MTBE) 78032GM016 1634-04-4 19 1 10 0
TRANS-CROTONALDEHYDE 68733GM016 123-73-9 19 0 12 1

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BQS Organic Blind Sample Program
False Positives & False Negatives
1,1-DICHLORO-2-PROPANONE
Method: 4437 Testid: 80336GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 1,1-DICHLORO-2-PROPANONE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.24 04/30/14 E 0.627 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
1,2-DIBROMOETHANE
Method: 4437 Testid: 77651GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 1,2-DIBROMOETHANE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.004 04/30/14 . 0.0072 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
1,4-DIOXANE
Method: 4437 Testid: 81582GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 1,4-DIOXANE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.7 04/30/14 . 1.4 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
2-HEXANONE, 5-METHYL-
Method: 4437 Testid: 77179GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 2-HEXANONE, 5-METHYL-

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.022 04/30/14 . 0.0427 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
2-PENTANOL, 4-METHYL-
Method: 4437 Testid: 77113GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 2-PENTANOL, 4-METHYL-

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.2 04/30/14 . 0.343 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
2-PROPEN-1-OL
Method: 4437 Testid: 68729GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 2-PROPEN-1-OL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20141640079 Supelco LC06437: 10 µl & Abs 032014: 10 µl 1.4 06/17/14 < 1.84 2.806
  20142060044 NSI 031814: 10 µl & ChemService 2615700: 10 µl 1.4 07/30/14 < 2.57 2.804

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
4-HEPTANONE, 2,6-DIMETHYL-
Method: 4437 Testid: 77419GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for 4-HEPTANONE, 2,6-DIMETHYL-

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.032 04/30/14 . 0.0563 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
ACETATE, ETHYL
Method: 4437 Testid: 81585GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for ACETATE, ETHYL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20142060044 NSI 031814: 10 µl & ChemService 2615700: 10 µl 0.06 07/30/14 < 0.06 0.12
False Positive 20141080002 Abs 032014: 10 µl 0.06 04/30/14 . 0.119 0
  20141220027 NSI 031814: 20 µl & Accu 214031128: 20 µl 0.06 05/07/14 . 0.269 0
  20141990077 Accu 214031128: 20 µl & Abs 032014: 20 µl 0.06 07/23/14 . 0.327 0
  20142270004 Supelco LC06437: 20 µl & Abs 032014: 20 µl 0.06 08/20/14 . 1.02 0
  20142530089 Accu 214031128: 10 µl & Abs 032014: 10 µl 0.06 09/11/14 . 0.211 0
  20143420011 Accu 214031128: 10 µl & NSI 031814: 10 µl 0.06 12/13/14 E 0.167 0
  20150720067 Supelco LC06437: 20 µl & NSI 031814: 20 µl 0.06 03/19/15 E 1.67 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
ACETONITRILE
Method: 4437 Testid: 76997GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for ACETONITRILE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20142470039 NSI 031814: 10 µl & ERA 0321-14-05: 10 µl 0.8 09/11/14 . 852 0
  20151380011 ChemService 3818700: 10 µl & Accu 215041338: 10 µl 0.8 05/20/15 . 0.21 0
  20151760209 ChemService 3818700: 25 µl & Accu 215041338: 25 µl 0.8 06/26/15 . 0.26 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
BUTANOL
Method: 4437 Testid: 77034GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for BUTANOL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20152190008 Abs 040315: 10 µl & ERA 0601-15-05: 10 µl 0.8 08/14/15 < 0.93 1.198
False Positive 20141080002 Abs 032014: 10 µl 0.8 04/30/14 . 1.57 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
DIETHYLAMINE, N-NITROSO-
Method: 4437 Testid: 78200GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for DIETHYLAMINE, N-NITROSO-

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 3.6 04/30/14 . 5.18 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
DIMETHOXYMETHANE
Method: 4437 Testid: 81578GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for DIMETHOXYMETHANE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20142470039 NSI 031814: 10 µl & ERA 0321-14-05: 10 µl 0.044 09/06/14 . 0.467 0
  20150090092 Abs 032014: 20 µl & ERA 0321-14-05A: 20 µl 0.044 01/10/15 . 0.9 0
  20151110020 Abs 032014: 10 µl & ERA 0321-14-05A: 10 µl 0.044 04/25/15 . 0.566 0
  20152330040 ERA 0601-15-05: 15 µl & Supelco LC13544: 15 µl 0.044 08/24/15 . 0.0309 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
HEXACHLOROCYCLOPENTADIENE
Method: 4437 Testid: 34386GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for HEXACHLOROCYCLOPENTADIENE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 1.6 04/30/14 E 3.15 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
ISOPROPYL ALCOHOL
Method: 4437 Testid: 77015GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for ISOPROPYL ALCOHOL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141360093 ChemService 2615700: 10 µl & Accu 214031128: 10 µl 0.8 05/20/14 . 0.59 0
  20141570087 ChemService 2615700: 20 µl & Supelco LC06437: 20 µl 0.8 06/07/14 . 0.6 0
  20142890079 ERA 0321-14-05A: 10 µl & Accu 214031128: 10 µl 0.6 10/21/14 . 0.63 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
METHYL ACETATE
Method: 4437 Testid: 77032GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for METHYL ACETATE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141360093 ChemService 2615700: 10 µl & Accu 214031128: 10 µl 0.14 05/20/14 . 0.046 0
  20141570087 ChemService 2615700: 20 µl & Supelco LC06437: 20 µl 0.14 06/07/14 E 0.098 0
  20141840102 ChemService 2615700: 20 µl & Accu 214031128: 20 µl 0.14 07/11/14 . 0.061 0
  20143240096 ChemService 2615700: 10 µl & Supelco LC06437: 10 µl 0.14 11/22/14 E 0.037 0

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
TERT-BUTYL METHYL ETHER (MTBE)
Method: 4437 Testid: 78032GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for TERT-BUTYL METHYL ETHER (MTBE)

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20152330040 ERA 0601-15-05: 15 µl & Supelco LC13544: 15 µl 0.012 08/24/15 < 0.0251 0.027

Updated 03/10/2016

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BQS Organic Blind Sample Program
False Positives & False Negatives
TRANS-CROTONALDEHYDE
Method: 4437 Testid: 68733GM016
Link to Individual Chart

The SGPlot Procedure

False Positive & Negative Listing for TRANS-CROTONALDEHYDE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20141080002 Abs 032014: 10 µl 0.48 04/30/14 . 0.904 0

Updated 03/10/2016