BQS Organic Blind Sample Program
False Positives & False Negatives
MESTRANOL
Method: 4434 Testid: 64542GM005

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for MESTRANOL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20131720019 Supelco LB99393: 20 µl & ERA 0415-13-01.2A: 20 µl 0.8 07/19/13 < 0.8 1.802105
  20132140004 ERA 0415-13-01.1A: 20 µl & ERA 0415-13-01.2A: 20 µl & Abs 060413: 20 µl 0.8 09/16/13 < 0.8 1.802105
  20132340084 ERA 0415-13-01.2A: 20 µl & Abs 050813: 20 µl 0.8 11/18/13 < 0.84 1.802105
  20133260007 Abs 050813: 20 µl & Abs 071513: 20 µl 0.8 03/03/14 < 0.8 1.811368
  20140860105 ERA 0415-13-01.1A: 20 µl & ERA 0415-13-01.2A: 20 µl & Abs 060413: 20 µl 0.8 04/14/14 < 1.14 1.802105
  20141640082 ERA 0227-14-07.2: 60 µl & Abs 042114: 60 µl 0.8 08/22/14 < 0.8 3.157895
  20142470037 Supelco LC06946: 30 µl & Abs 042114: 30 µl 0.8 12/16/14 < 0.82 1.578947
  20142530088 Abs 042114: 30 µl & Abs 031014: 30 µl 0.8 12/22/14 < 1.38 1.578947
  20143650001 ChemService 2561700: 30 µl & Spex Organics E1140505004: 30 µl 0.8 04/01/15 < 0.8 1.606105
False Positive 20140230084 Supelco LB99393: 50 µl & Abs 050813: 50 µl 0.8 03/14/14 . 0.73 0

Updated 08/31/2015