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← Document results/DEP Box 27/GCMS X 4/10/02 A 4/20/02
Document / 9 pages

GCMS blank analysis results for volatile organics, Apr-May 2002

Machine-extracted title · confidence 90%

Laboratory blank analysis results confirming absence of contamination in GCMS testing for volatile organic compounds.

NYC-WTC_000048602–000048610

Folder label: “GCMS X 4/10/02 A 4/20/02

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed) Data File : C:\MSDCHEM\1\DATA\020419\0410LB.D Vial: 4 Acq On : 19 Apr 2002 11:03 am Operator: Nefliu Sample : 04/10 lab blk Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: EVENTS.E Quant Time: Apr 19 11:51:42 2002 Quant Results File: SCAN020418 .RE Quant Method : C:\MSDCHEM\1\METHODS\SCAN020418.M (Chemstation Integrator) Title : Method 508 GC/MS Scan Last Update : Thu Apr 18 14:45:38 2002 Response via : Initial Calibration DataAcq Meth : 508SCAN1 Internal Standards R.T. Qlon Response Cone Units Dev(Min) 1) 1,4-Dichlorobenzene-d4 11.38 152 11174015 40.00 ug/1 -0.03 10) Naphthalene-d8 16.54 136 43255413 40.00 ug/1 -0.04 17) Acenaphthene-diO 24.46 164 23417239 40.00 ug/1 -0.04 31) Phenanthrene-diO 31.72 188 35003563 40.00 ug/1 -0.04 39) Chrysene-dl2 39.94 240 27144235 40.00 ug/1 -0.04 45) Perylene-dl2 43.16 264 20188670 40.00 ug/1 -0.02

System Monitoring Compounds 28) TCMX 27.54 207 845047 5.81 ug/1 -0.05 Spiked Amount 10.000 Recovery = 58.10% Target Compounds Qvalue 36) Di-n-butylphthalate 34.81 149 490228 0.40 ug/1 97

(#) = qualifier out of range (m) = manual integration (+) = signals summed 0410LB.D SCAN020418.M Mon Apr 22 15:32:12 2002 Page 1

NYC-WTC_000048603

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NYC-WTC_000048603Source: NYC Law Department, mirrored locally

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