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GCMS reference analysis results for sample AE08251, April 2002

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Laboratory report of GCMS reference analysis for sample AE08251 conducted on April 17, 2002, showing recovery percentages for target compounds.

NYC-WTC_000047752–000047756

Folder label: “GCMS X 4/8/02 A 4/17/02

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File : C:\MSDCHEM\l\DATA\020417\0408REFl.D Vial: 5 Acq On : 17 Apr 2002 12:41 pm Operator: Nefliu Sample : 04/08 ref Inst Instrumen Mise : Multiplr: 1.00 MS Integration Params: EVENTS.E Quant Time: Apr 17 13:36:37 2002 Quant Results File: 041702SCAN.RE

Quant Method C:\MSDCHEM\1\METHODS\041702SCAN.M (Chemstation Integrator) Title 508 Modified GC/MS scan Last Update Wed Apr 17 08:01:11 2002 Response via Initial Calibration DataAcq Meth 508SCAN

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

1) 1,4-Dichlorobenzene-d4 9.99 152 6655553 40.00 ug/L -0.02 10) Napthalene-d8 13.49 136 25715482 40.00 ug/L -0.03 17) Acenapthalene-dlO 18.63 164 14066405 40.00 ug/L -0.02 29) Phenanthranene-dlO 23.02 188 21257923 40.00 ug/L -0.02 37) Chrysene-dl2 30.89 240 15736722 40.00 ug/L -0.04 43) Perylene-dl2 34.79 264 11511211 40.00 ug/L -0.02

System Monitoring Compounds 2 7) TCMX 20.60 207 567847 7.28 ug/L 0.00 Spiked Amount 8.000 Recovery = 91.00%

Target Compounds Qvalue 2) n-nitros-dimethyl amine 3.90 74 1125822 9.12 ug/L # 86 3) bis(2-Chloroethyl )ether 9.40 93 3943485 17.90 ug/L 90 4) 1,3-Dichlorobenzene 9.82 146 2384970 9.76 ug/L 98 5) 1,4-Dichlorobenzene 10.03 146 2617877 10.55 ug/L 99 6) 1,2-Dichlorobenzene 10.41 146 2759015 11.75 ug/1 98 7) 2,2'oxybis(1-Chloropropane 10.86 45 5992572m 18.03 ug/L 8) N-nitroso-di-propylamine 11.19 70 2834846 18.52 ug/L 92 9) Hexachloroethane 11.31 117 495445 5.67 ug/L 96 11) Nitrobenzene 11.54 77 3851530 • 16.09 ug/L 94 12) Isophorone 12.26 82 6155759 14.45 ug/L 96 13) bis(2-Chloroethoxy) methan 13.00 93 4911393 18.21 ug/L 97 14) 1,2,4-Trichlorobenzene 13.36 180 2290334 12.74 ug/L 99 15) Napthalene 13.54 128 10943443 16.99 ug/L 98 16) Hexachlorobutadiene 13.99 225 430731 4.60 ug/L 98 18) 2-Chloronaphthalene 16.99 162 6423123 17.51 ug/L 96 19) Dimethylphthalate 18.07 163 8419113 21.55 ug/L 99 20) 2,6-Dinitrotoluene 18.18 165 1480999 17.05 ug/L 98 21) Acenapthylene 18.19 152 10634136 19.89 ug/L 97 22) Acenapthalene 18.72 153 7234071 18.78 ug/L 97 23) 2,4-Dinitrotoluene 19.34 165 1880966 17.25 ug/L 90 24) Diethylphthalate 20.21 149 8571945 21.36 ug/L 99 25) 4-Chlorophenyl-phenylether 20.39 204 3767118 20.16 ug/L 98 26) Fluorene 20.27 166 8534003 19.94 ug/L 97 28) Azobenzene 20.85 77 8682950 18.34 ug/L # 89 30) Nnitrosodiphenylamine 20.76 169 4287299 15.84 ug/L 92 31) 4-Bromophenyl-phenylether 21.83 248 1909975 16.82 ug/L 97 32) Hexachlorobenzene 21.86 284 1830782 15.06 ug/L 99 33) Phenanthrene 23.09 178 12105980 20.36 ug/L 97 34) Anthracene 23.24 178 10703148 18.40 ug/L 98 35) Di-n-butylphthalate 25.16 149 14204828 21.30 ug/L 99

(#) = qualifier out of range (m) = manual integration 0408REF1.D 04 1702SCAN .M Thu Apr 18 09:09:47 2002 Page 1

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