BQS Organic Blind Sample Program
False Positives & False Negatives
2,4-DB
Method: 2060 Testid: 38746LCM29

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The SGPlot Procedure

Updated 08/31/2015

False Positive & Negative Listing for 2,4-DB

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20092260010 Restek A063332: 50 µl & Restek A062398: 50 µl 0.02 09/02/09 E 0.009 0
  20102160005 Spex Organics T1090828008: 80 µl 0.02 09/01/10 E 0.006 0
  20131230083 Restek A088383: 50 µl & NSI 062612-01: 50 µl & NSI 718L-01-01: 50 µl 0.02 06/05/13 . 0.014 0
  20132490343 NSI 042213HPLC: 50 µl & Accu 213041030: 50 µl & Supelco LC00372: 50 µl 0.02 09/27/13 . 0.013 0
  20133110110 ChemService 1448600: 50 µl & NSI 050613: 50 µl & Supelco LC01386: 50 µl 0.02 11/27/13 . 0.016 0
  20140300032 NSI 042213HPLC: 20 µl & ChemService 1448600: 20 µl & Supelco LC00372: 20 µl 0.02 02/13/14 . 0.015 0

Updated 08/31/2015