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GCMS re-analysis results, Sample AD28596, December 2001

Machine-extracted title · confidence 92%

Repeat gas chromatography-mass spectrometry analysis of sample AD28596 after re-extraction, confirming bis(2-Ethylhexyl)phthalate at 0.36 ug/L with improved standard recovery of 89

NYC-WTC_000034908–000034918

Folder label: “GCMS X 11/23/01 A 11/29/01

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File : C:\HPCHEM\1\DATA\DEC1001\28596.D Vial: 21 Acq On : 11 Dec 2001 6:14 am Operator: 209 GALOS Sample : gc/ms scan 12/3 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: RTEINT.P Quant Time: Dec 14 15:30 2001 Quant Results File: GCMS1126.RES

Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Last Update : Wed Nov 28 15:06:24 2001 Response via : Initial Calibration DataAcq Meth : GCMS1126

Internal Standards R.T. Qlon Response Cone Units Dev(Min)

1) 1,4-Dichlorobenzene-d4 11.67 152 822411 20.00 ug/1 -0.02 10) Naphthalene-d8 15.27 136 3167927 20.00 ug/1 -0.03 17) Acenaphthene-diO 20.55 164 1575362 20.00 ug/1 -0.02 29) Phenanthrene-diO 24.97 188 2228876 20.00 ug/1 -0.02 38) Chrysene-dl2 33.00 240 1353391 20.00 ug/1 -0.03 44) Perylene-dl2 37.10 264 907259 20.00 ug/1 -0.02

System Monitoring Compounds 37) 2,4-DDD 30.05 235 118372 4.46 ug/mL -0.02 Spiked Amount 5.000 Recovery = 89.20%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 5.43 74 4400 N.D. 3) bis(2-Chloroethyl)ether 11.11 93 8373 N.D. 4) 1,3-Dichlorobenzene 11.57 146 7993 N.D. 5) 1,4-Di chlorobenzene 11.57 146 7993 N.D. 6) 1,2-Dichlorobenzene 12.23 146 7874 N.D. 7) 2,2'-oxybis(1-Chloropropan 0.00 45 0 N.D. 8) N-Nitroso-di-n-propylamine 0.00 70 0 N.D. 9) Hexachloroethane 13.07 117 2287 N.D. 11) Nitrobenzene 13.40 77 3869 N.D. 12) Isophorone 14.04 82 3757 N.D. 13) bis(2-Chloroethoxy)methane 14.72 93 2978 N.D. 14) 1,2,4-Trichlorobenzene 15.17 180 3162 N.D. 15) Naphthalene 15.33 128 13854 N.D. 16) Hexachlorobutadiene 15.88 225 1359 N.D. 18) Hexachlorocyclopentadiene 0.00 237 0 N.D. 19) 2-Chloronaphthalene 18.85 162 3451 N.D. 20) Dimethylphthalate 19.95 163 2337 N.D. 21) 2,6-Dinitrotoluene 0.00 165 0 N.D. d 22) Acenaphthylene 20.09 152 3699 N.D. 2 3) Acenaphthene 20.64 153 3777 N.D. 24) 2,4-Dinitrotoluene 21.42 165 204 N.D. 25) Diethylphthalate 22.07 149 20725 N.D. 26) 4-Chlorophenyl-phenylether 22.21 204 1551 N.D. 27) Fluorene 22.18 166 3302 N.D. 28) Azobenzen/ 1,2-Diphenylhyd 22.67 77 4148 N.D.

(#) = qualifier out of range (m) = manual integration 28596.D NP091101.M Mon Dec 17 13:10:29 2001 Page 1

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