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GCMS blank analysis, sample AE00945, February 2002

Machine-extracted title · confidence 100%

GC/MS procedural blank analysis results showing non-detectable levels of target organic compounds, confirming clean analytical conditions.

NYC-WTC_000052685–000052692

Folder label: “GCMS X 1/15/02 A 2/11/02

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NYC 9/11 Public Portal Document

Data File : C:\HPCHEM\l\DATA\FEB1102\LBA.D Vial: 16 Acq On : 12 Feb 2002 12:49 am Operator: 209 GALOS Sample : GC/MS SCAN 1/15 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0208.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ***************************************************************** * * * * Peak Number 1 Acetaldehyde Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

44.38 0.60 ug/1 35527 Perylene-d12 38.11

Hit# of 5 Tentative ID MW MolForm CAS# Qual ------------ ------------------------------- 1 Acetaldehyde 44 C2H40 000075-07-0 3 2 Ethylene oxide 44 C2H40 000075-21-8 3 3 Propane 44 C3H8 000074-98-6 1 4 Carbamic acid, monoammonium salt 78 CH6N202 001111-78-0 1 Abundance Scan 4285 (44.384 min): LBA.D (-) m/ z 39.95 100.00% 40

5000 ■ I > ‘ ‘ | t t 1 < l • " rj . t , i । , 44.00 44.20 44.40 44.60 44.80 “49 ‘IUUCnm73 191 —mmummmuuutB"8"TTOT " ' I " " I' n r, . th m/z 43.95 45.90% mz-2 ...-10 20.30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180.190. Abundance #36: Acetaldehyde 29 44

5000 44.00 44'20 44.40 44.60 44.80 m/z 35.90 1.07% T p-rTTpTTTj-rrTTpnn-rYrTTrp-rTTpTTnYrrTTp-FTTpT-rTp-7^^ m/z-? . -10 20 30 40 50 60 70 80 90 100110 120 130 140 150 160 170 180 190 Abundance i tinyot . a 29 T T 15 44 44.00 44.20 44.40 44.60 44.80 5000 m/z 44.95 0.97%

m/z-____ 10 20 30 40 50 60 70 80 90 100 110120 130140150 160170 180 190 Abundance #62269: Propane T I‘"""I"’ I 1 29 44.00 44.20 44.40 44.60 44.80 m/ z 49.00 0.43% 5000- A 44 15 , mrr I I I" ।, ,,,।. .. ,। .I| IIII |I I. I|>IH| ,. .,।.. ,,। .,.,।..,,।,. , ,|I HI| IH I|.. ,.|II I. | ' ' i ' - T m/z-> 10 20 30 40 50 60 70 80 90 100 110120130140 150 160 170 180 190 44.00 44.20 44.40 44.60 44.80

LBA.D GCMS0208.M Tue Feb 19 10:37:25 2002 Page 1

NYC-WTC_000052691

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NYC-WTC_000052691Source: NYC Law Department, mirrored locally

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