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← Document results/DEP Box 15/508 X 5/10/02 5/14/02
Document / 7 pages

GCMS pesticide analysis summary, sample AE10996, May 2002

Machine-extracted title · confidence 95%

Summary of gas chromatography-mass spectrometry results for multiple pesticides showing average concentrations and percent relative standard deviation.

NYC-WTC_000015863–000015869

Folder label: “508 X 5/10/02 5/14/02

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NYC 9/11 Public Portal Document

Response Factor Report Instrumen

Method : C:\MSDCHEM\1\METHODS\020514P.M (Chemstation Integrator) Title : 508 Chlorinated Pesticides Last Update : Tue May 14 13:42:09 2002

Calibration Files l =PESTC1.D 2 =PESTC2.D 3 =PESTC3 .D

Compound 1 2 3 Avg %RSD

1) Propachlor 6.780 5.631 5.427 5.946 E8 12.27 2) g-BHC 11.464 12.073 12.240 11.926 E9 3.43 3) Heptachlor 9.017 9.647 10.122 9.595 E9 5.78 4) Aldrin 11.135 11.768 11.966 11.623 E9 3.73 5) Heptachlor Epoxide 9.994 10.038 10.063 10.032 E9 0.35 6) 4,4-DDE 8.648 9.299 9.476 9.141 E9 4.77 7) Dieldrin 13.653 11.313 11.210 12.059 E9 11.46 8) Endrin 6.499 7.278 7.236 7.004 E9 6.25 9) Methoxychlor 2.308 2.591 2.793 2.564 E9 9.49 10) s 2,4-DDD SURROGATE 4.726 4.889 5.259 4.958 E9 5.52

Signal #2 Calibration Files 1 =PESTCl.D 2 =PESTC2.D 3 =PESTC3.D

Compound 1 2 3 Avg %RSD

1) Propachlor 7.463 6.164 5.749 6.458 E8 13.84 2) g-BHC 11.796 11.605 11.577 11.659 E9 1.02 3) Heptachlor 9.239 9.241 9.444 9.308 E9 1.27 4) Aldrin 12.352 11.935 11.796 12.028 E9 2.41 5) Heptachlor Epoxide 10.612 9.917 9.746 10.092 E9 4.54 6) 4,4-DDE 9.192 9.104 9.150 9.149 E9 0.48 7) Dieldrin 11.771 11.308 11.306 11.462 E9 2.34 8) Endrin 7.079 7.225 7.125 7.143 E9 1.05 9) Methoxychlor 2.124 2.511 2.642 2.426 E9 11.10 10) s 2,4-DDD SURROGATE 5.163 5.115 5.691 5.323 E9 6.00

(#) = Out of Range 020514P.M Thu May 16 10:46:44 2002 Page 1

NYC-WTC_000015863

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NYC-WTC_000015863Source: NYC Law Department, mirrored locally

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