BQS Organic Blind Sample Program
False Positives & False Negatives
17-ALPHA-ETHYNYLESTRADIOL
Method: 4434 Testid: 64529GM005

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The SGPlot Procedure

Updated 03/10/2016

False Positive & Negative Listing for 17-ALPHA-ETHYNYLESTRADIOL

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Negative 20123490149 ERA 0507-12-04.1: 25 µl & Supelco LB92781: 25 µl 0.8 02/08/13 < 0.8 1.057895
  20141490203 Abs 031014: 60 µl & ERA 0227-14-07.2: 60 µl 0.8 08/11/14 < 2.84 3.233684
  20141640082 ERA 0227-14-07.2: 60 µl & Abs 042114: 60 µl 0.8 08/22/14 < 2.16 3.233684
  20142820150 Supelco LC06946: 30 µl & ChemService 2561700: 30 µl 0.8 01/21/15 < 0.8 1.578947
  20151140151 Abs 031014: 30 µl & ERA 0227-14-07.2: 30 µl 0.8 06/03/15 < 1.43 1.616842
  20151380010 Supelco LC13547: 30 µl & Abs 041515: 30 µl 0.8 06/29/15 < 0.8 1.2
  20151410211 Supelco LC13547: 30 µl & Spex Organics EN150501025: 30 µl 0.8 09/17/15 < 0.8 1.2
  20151480171 Supelco LC13547: 30 µl & Abs 041515: 30 µl 0.8 09/17/15 < 0.8 1.2
  20151620181 Supelco LC13547: 50 µl & Spex Organics EN150501025: 50 µl 0.8 07/21/15 < 0.8 2
  20152330045 Supelco LC13547: 30 µl & Crescent 04EE007: 30 µl 0.8 11/02/15 < 0.8 1.2
  20152750003 Supelco LC13547: 60 µl & ChemService 4073900: 60 µl 0.8 01/05/16 < 2.36 2.4
  20153090108 ERA 0601-15-04: 30 µl & ChemService 4073900: 30 µl 0.8 01/08/16 < 0.8 1.218947

Updated 03/10/2016