BQS Organic Blind Sample Program
False Positives & False Negatives
ESTRIOL
Method: 4434 Testid: 64540GM005

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for ESTRIOL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20091970068 Abs 081908H: 25 µl 2 08/11/09 < 2 2.083767
  20101830112 Supelco LB69645: 20 µl 2 10/25/10 < 2 3.787721
  20101900007 Abs 083109H: 40 µl 2 10/25/10 < 2 2.543451
  20102030011 Restek A070624: 20 µl 2 10/25/10 < 2 3.759399
  20141490203 Abs 031014: 60 µl & ERA 0227-14-07.2: 60 µl 2 08/11/14 < 6.43 8.008421
  20141640082 ERA 0227-14-07.2: 60 µl & Abs 042114: 60 µl 2 08/22/14 < 7.35 8.008421
False Positive 20090430175 Supelco LB60732: 25 µl 2 03/16/09 E 0.43 0
  20090500155 ERA 0813-08-07H: 25 µl 2 03/16/09 E 0.88 0
  20090710019 Supelco LB60732: 25 µl 2 05/01/09 E 0.5 0

Updated 08/31/2015