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GCMS blank analysis results for sample AD29926, Jan 2002

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Blank quality control analysis for gas chromatography-mass spectrometry, completed January 30, 2002, measuring multiple semi-volatile organic compounds below method detection…

NYC-WTC_000037367–000037374

Folder label: “GCMS X 12/11/01 A 12/16/01

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File : C:\HPCHEM\1\DATA\DEC1401\LBE.D Vial: 41 Acq On : 16 Dec 2001 5:47 am Operator: 209 GALOS Sample : gems scan 12/11 Inst : GC/MS 209 Mise : Multiplr: 1.00 •MS Integration Params: RTEINT.P Quant Time: Jan 30 9:57 2002 Quant Results File: GCMS1126.RES

Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Last Update : Fri Jan 25 15:57:52 2002 Response via : Initial Calibration DataAcq Meth : GCMS1126

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

1) 1,4-Dichlorobenzene-d4 11.67 152 710438 20.00 ug/1 - 0.03 10) Naphthalene-d8 15.27 136 2726180 20.00 ug/1 -0.04 17) Acenaphthene-diO 20.55 164 1342884 20.00 ug/1 -0.03 29) Phenanthrene-diO 24.97 188 1986640 20.00 ug/1 -0.02 38) Chrysene-dl2 33.01 240 1216024 20.00 ug/1 -0.03 44) Perylene-dl2 37.10 264 790010 20.00 ug/1 -0.02

System Monitoring Compounds 37) 2,4-DDD 30.05 235 101293 4.64 ug/mL -0.02 Spiked Amount 5.000 Recovery = 92.80%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 5.48 74 1200 N.D. 3) bis(2-Chloroethyl)ether 11.15 93 2110 N.D. 4) 1,3-Dichlorobenzene 11.60. 146 1575 N.D. 5) 1,4-Dichlorobenzene 11.72 146 1757 N.D. 6) 1,2-Dichlorobenzene 12.24 146 1221 N.D. 7) 2,2'-oxybis(1-Chloropropan 0.00 45 0 N.D. A 8) N-Nitroso-di-n-propylamine 0.00 70 0 N.D. 9) Hexachloroethane 13.07 117 670 N.D. J 11) Nitrobenzene 12) Isophorone 13) bis(2-Chloroethoxy)methane 13.28 14.06 14.93 77 82 93 190 23 90 347 N.D. N.D. N.D. (3) 14) 1,2,4-Trichlorobenzene 15.18 180 1282 N.D. 15) Naphthalene 15.33 128 6858 N.D. 16) Hexachlorobutadiene 15.89 225 805 N.D. 18) Hexachlorocyclopentadiene 0.00 237 0 N.D. 19) 2-Chloronaphthalene 18.90 162 2881 N.D. 20) Dimethylphthalate 20.02 163 3609 N.D. 21) 2,6-Dinitrotoluene 0.00 165 0 N.D. 22) Acenaphthylene 20.11 152 3117 N.D. 23) Acenaphthene 20.64 153 3779 N.D. 24) 2,4-Dinitrotoluene 20.95 165 424 N.D. 25) Diethylphthalate 22.10 149 3455 N.D. 26) 4-Chlorophenyl-phenylether 22.26 204 1396 N.D. 27) Fluorene 22.22 166 3222 N.D. 28) Azobenzen/ 1,2-Diphenylhyd 0.00 77 0 N.D.

(#) = qualifier out of range (m) = manual integration LBE.D GCMS1126.M Wed Jan 30 10:01:58 2002 Page 1

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