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GCMS blank analysis results, sample AE11799, May 2002

Machine-extracted title · confidence 85%

Gas chromatography-mass spectrometry blank analysis for sample AE11799 showing results below method reporting limits for semivolatile organic compounds, dated May 28, 2002.

NYC-WTC_000012751–000012778

Folder label: “GCMS X 5-21-02 A 5-22-02

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052202\521LB.D Vial: 3 Acq On : 22 May 2002 3:27 pm Operator: Mclean Sample : 5/21 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 16 9H-Purin-6-amine, N-methyl-... Concentration Rank 11 R.T.. EstConc Area Relative to ISTD R.T. 35.03 0.58 ug/L 233266 Perylene-dl2 34.66 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 9H-Purin-6-amine, N-methyl-9-(tr... 221 C9H15N5Si 032865-83-1 9 2 Ethanone, 1-(2,3,4-trichlorophen... 222 C8H5C13O 013608-87-2 8 3 Benzene, 1,3,5-trichloro-2-(1-me... 222 C9H9C13 054965-70-79 4 2-Chloroaniline-5-sulfonic acid 207 C6H6C1NO3S 000098-36-2 5 Abundance Scan 5437 (35.025 min): 521 LB.D (-5435) (-) m/z 221.05 / /100.00% 221

5000 96 133 430 40 ' i ' * 73 0- i ■ ■ -r-T-r 191 264 ,295 34.60 34.80 35.00 35.20 35.40 m/z 207.00 53.45% miz-> Abundance 50 100 150 200 250 300 350 #87924:9H-Purin-6-amine, N-methyl-9-(trimethylsily!)- 211 400 Jw“"W/— 73 5000 34.60 34.80 35.00 35.20 35.40 45 165 192 m/z 96.00 48.28%

miz-> 0- .149,14 +4 it 50 100 150 200 250 1 1 300 • ■ 350 • 1 i 1 1 ■ ■ 1 ■ 400 Abundance #84879: Ethanone, 1-(2,3,4-trichlorophenyl)- 207 I "1, 43 34.60 34.80 35:00 35.20 35.40 5000 m/z 209.00 48.03% 74 181 109 143 15 0- 4 r 44 -+-*,h k — 4 228 ** * f • * * I I » I 1 1 1 * * * 1 l i miz-> 50 100 150 200 250 300 350 400 Abundance #84887: Benzene, 1,35-trichloro-2-(1-methytethyl)- 207 34.60 34:80 35.00 35.20 35:40 m/z 133.00 45.57% 5000

136 171 0 15 1942+15 +41 228 ‘ । • f । • ■ * * । > * * * । * i ■ 1 ■ ■ i ■ * t • ' 1 । • n/z—> 50 100 150 200 250 300 350 400 34.60 34.80 35.00 35.20 35.40

521LB.D 052202.M Tue May 28 11:58:10 2002 Page 19

NYC-WTC_000012773

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NYC-WTC_000012773Source: NYC Law Department, mirrored locally

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