BQS Organic Blind Sample Program
False Positives & False Negatives
TRANS-DIETHYLSTILBESTROL
Method: 4434 Testid: 64536GM005

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for TRANS-DIETHYLSTILBESTROL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20140440054 Supelco LB99393: 50 µl & Abs 060413: 50 µl & Abs 071513: 50 µl 0.8 03/14/14 < 2.9 3.526316
  20140590012 ERA 0415-13-01.2A: 50 µl & Spex Organics T1130423008: 50 µl 0.8 03/14/14 < 3.11 3.505263
  20140860105 ERA 0415-13-01.1A: 20 µl & ERA 0415-13-01.2A: 20 µl & Abs 060413: 20 µl 0.8 04/14/14 < 0.89 1.402105
  20141080003 Abs 031014: 60 µl & ChemService 2561700: 60 µl 0.8 05/06/14 < 1.54 3.157895
  20141150017 Abs 031014: 30 µl & ChemService 2561700: 30 µl 0.8 05/14/14 < 1.4 1.578947
  20141490203 Abs 031014: 60 µl & ERA 0227-14-07.2: 60 µl 0.8 08/11/14 < 1.98 3.157895

Updated 08/31/2015