BQS Organic Blind Sample Program
False Positives & False Negatives
CHLORAMBEN, METHYL ESTER
Method: 2060 Testid: 61188LCM29

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for CHLORAMBEN, METHYL ESTER

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20091060131 Abs 081508Polar: 30 µl 0.1 04/30/09 < 0.1 0.3347432
  20091410005 ChemService 406-113B: 50 µl 0.1 06/17/09 < 0.1 0.5507839
  20091830170 Abs 081508Polar: 30 µl 0.1 07/28/09 < 0.1 0.330155
  20092530081 ChemService 406-113B: 30 µl 0.1 09/23/09 < 0.1 0.329352
  20093100008 Restek A069890: 40 µl 0.1 11/20/09 < 0.1 0.1842234
  20100920050 Restek A069890: 40 µl 0.1 04/14/10 < 0.1 0.1880564
  20101270033 Spex Organics T1090828008: 40 µl 0.1 05/26/10 < 0.1 0.1907467
  20101550008 Restek A069890: 80 µl 0.1 06/16/10 < 0.1 0.3845367
  20101760005 Restek A069890: 40 µl 0.1 07/14/10 < 0.1 0.1879248
  20103430088 ChemService 448-45B: 40 µl 0.1 01/04/11 < 0.1 0.1450068
  20110130055 Abs 090910HPLC: 40 µl 0.1 02/02/11 < 0.1 0.1506629
  20110410063 Abs 090910HPLC: 40 µl 0.1 02/25/11 < 0.1 0.1494322
  20110490034 ChemService 448-45B: 40 µl 0.1 03/07/11 < 0.1 0.1443439
  20110770004 Abs 090910HPLC: 40 µl 0.1 04/12/11 < 0.1 0.1490757
  20111590002 ChemService 448-45B: 100 µl 0.1 06/28/11 < 0.1 0.3669634
  20131230083 Restek A088383: 50 µl & NSI 062612-01: 50 µl & NSI 718L-01-01: 50 µl 0.2 06/04/13 < 0.2 0.75
  20133470007 Spex Organics T1130601011: 20 µl & ChemService 1448600: 20 µl & NSI 050613: 20 µ 0.2 01/16/14 < 0.2 0.3604
  20140300032 NSI 042213HPLC: 20 µl & ChemService 1448600: 20 µl & Supelco LC00372: 20 µl 0.2 02/12/14 < 0.2 0.3604
False Positive 20093380008 NSI 090309-01HPLC: 80 µl 0.1 12/29/09 E 0.019 0
  20101340151 Accu 209081166: 80 µl 0.1 06/10/10 E 0.062 0
  20111960035 Crescent 163162: 100 µl 0.1 07/18/11 . 0.087 0

Updated 08/31/2015