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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

Library Search Compound Report Data File : C:\MSDCHEM\l\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: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020418.M (Chemstation Integrator) Title : Method 508 GC/MS Scan Library : C: \DATABASE\ni s 198.1 ********************************************************************* Peak Number 2 2-Imidazolidinone, 1-methox... Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 31.09 0.30 ug/1 655977 Phenanthrene-dl0 31.72 Hit# Of 5 Tentative ID MW MolForm CAS# Qual 1 2-Imidazolidinone, 1-methoxy-3-p. . . 192 C10H12N2O2 052420-43-6 40 2 2-Propenal, 3-(3,4-dimethoxyphen. . . 192 C11H1203 004497-40-9 39 3 9H-Fluorene, 9-ethylidene- 192 C15H12 007151-64-6 9 4 1,3-Benzodioxole, 4-methoxy-6-(2... 192 C11H12O3 000607-91-0 9 Abundance Scan 4768 (31.094 min): 0410LB.D (-4761) (-) m/z 192.05 100.00% 1912

40 5000

96 . ..... 7A......... 30.80 31.00 31.20 31.40

n/z—> 60 70 82 | 122 146 160 JU- I .. I. I.. |, i I. I! I , I I | I I I I | I ! 1 I | I I n | I I I'l | I I I I | I ′ | I I I I'l I I ! I | ! I I I | I I 1111

20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 m/z 40.10 57.31% Abundance #80907:2-Imidazolidinone, 1-methoxy-3-phenyl- 106 192

77 119 162 5000 42 30.80 31.00 31.20 31.40 56 91 m/z 96.20 17.87% 28 64 n/z—> m mm ljunipualapu I.... 134 T 1111 " " 111" I I_____________ ‘• * I • * ‘ ‘ I “ * ’ I r” ’ Ir 20 30 40 a) 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 Abundance #80953:2-Propenal, 3-(3,4-dimethoxypheny!)- 19/2 161 30.80 31.00 31.20 31.40 5000 m/z 191.00 16.99% A 77 91 . 121 149 177 103 | 138 | ( 52 64 1 ।| i 1. . ′ . . । .'I I . ।. . JI । . ■ i rre...... | I'l 11‘...... i 1_ | I ..re .................... i | 1′14 r_ 111 11 |1ii 111 > I'l . rpt i i i rro > | I I i‘i । I I I I MI i 11 i 1111 /z—> 20 30 40 50 60 70 80 100 110 120 130 140 1S) 160 170 180 190 200 -............... Abundance #81028:9H-Fluorene, 9-ethylidene- 1112 30.80 31.00 31.20 31.40 m/z 193.10 14.23%

5000 165

83 99 - 41 m/z—> 20 30 40 50 60 70 80 90 100 110 120 130 140 ISO' 160 170 180 190 200 30.80 31.00 31.20 31.40

0410LB.D SCAN020418.M Thu May 02 11:39:51 2002 Page 4

NYC-WTC_000048608

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NYC-WTC_000048608Source: NYC Law Department, mirrored locally

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