Organic Blind Sample Program
False Positives & False Negatives
ISOPHORONE
Method: 4437 Testid: 34408GM016
Link to Individual Chart

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newdate = 07/29/16 falsepos = 25.1 newdate = 08/30/17 CENC_VAL = 6.590 newdate = 08/10/17 CENC_VAL = 9.260 newdate = 07/14/17 CENC_VAL = 7.830 newdate = 06/01/17 CENC_VAL = 17.600 newdate = 04/13/17 CENC_VAL = 31.700 newdate = 02/24/17 CENC_VAL = 9.600 newdate = 02/02/17 CENC_VAL = 8.700 newdate = 12/23/16 CENC_VAL = 17.300 newdate = 11/29/16 CENC_VAL = 20.000 newdate = 09/28/16 CENC_VAL = 15.700 newdate = 09/23/16 CENC_VAL = 25.400 newdate = 08/31/16 CENC_VAL = 15.100 newdate = 08/12/16 CENC_VAL = 9.520 newdate = 07/06/16 CENC_VAL = 28.800 newdate = 07/06/16 CENC_VAL = 9.040 newdate = 06/23/16 CENC_VAL = 4.720 newdate = 05/20/16 CENC_VAL = 10.200 newdate = 04/28/16 CENC_VAL = 11.800 newdate = 04/09/16 CENC_VAL = 6.410 newdate = 02/12/16 CENC_VAL = 5.810 newdate = 01/22/16 CENC_VAL = 13.900 newdate = 08/30/17 REPORTING LEVEL = 5 newdate = 08/10/17 REPORTING LEVEL = 5 newdate = 08/10/17 REPORTING LEVEL = 5 newdate = 07/14/17 REPORTING LEVEL = 5 newdate = 07/14/17 REPORTING LEVEL = 5 newdate = 06/01/17 REPORTING LEVEL = 5 newdate = 06/01/17 REPORTING LEVEL = 5 newdate = 04/13/17 REPORTING LEVEL = 5 newdate = 04/13/17 REPORTING LEVEL = 5 newdate = 02/24/17 REPORTING LEVEL = 5 newdate = 02/24/17 REPORTING LEVEL = 5 newdate = 02/02/17 REPORTING LEVEL = 5 newdate = 02/02/17 REPORTING LEVEL = 5 newdate = 12/23/16 REPORTING LEVEL = 5 newdate = 12/23/16 REPORTING LEVEL = 5 newdate = 11/29/16 REPORTING LEVEL = 5 newdate = 11/29/16 REPORTING LEVEL = 5 newdate = 09/28/16 REPORTING LEVEL = 5 newdate = 09/28/16 REPORTING LEVEL = 5 newdate = 09/23/16 REPORTING LEVEL = 5 newdate = 09/23/16 REPORTING LEVEL = 5 newdate = 08/31/16 REPORTING LEVEL = 5 newdate = 08/31/16 REPORTING LEVEL = 5 newdate = 08/12/16 REPORTING LEVEL = 5 newdate = 08/12/16 REPORTING LEVEL = 5 newdate = 07/29/16 REPORTING LEVEL = 5 newdate = 07/29/16 REPORTING LEVEL = 5 newdate = 07/06/16 REPORTING LEVEL = 5 newdate = 07/06/16 REPORTING LEVEL = 5 newdate = 07/06/16 REPORTING LEVEL = 5 newdate = 07/06/16 REPORTING LEVEL = 5 newdate = 06/23/16 REPORTING LEVEL = 5 newdate = 06/23/16 REPORTING LEVEL = 5 newdate = 05/20/16 REPORTING LEVEL = 5 newdate = 05/20/16 REPORTING LEVEL = 5 newdate = 04/28/16 REPORTING LEVEL = 5 newdate = 04/28/16 REPORTING LEVEL = 5 newdate = 04/09/16 REPORTING LEVEL = 5 newdate = 04/09/16 REPORTING LEVEL = 5 newdate = 02/12/16 REPORTING LEVEL = 5 newdate = 02/12/16 REPORTING LEVEL = 5 newdate = 01/22/16 REPORTING LEVEL = 5
The SGPlot Procedure

Updated 04/25/2018

False Positive & Negative Listing for ISOPHORONE

Status Lab ID Spike Mix Reporting Level Analysis Date Result Conc. Expected Conc.
False Positive 20162100018 Supelco LC20145V: 40 µl & NSI 041516: 40 µl & NSI 041416HVOC: 40 µl 5 07/29/16 E 25.1 0

Updated 04/25/2018