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GCMS blank analysis results for VOCs, May 9 2002

Machine-extracted title · confidence 100%

Laboratory report of a GC/MS blank run analyzing volatile organic compounds with results below detection limits in May 2002.

NYC-WTC_000045547–000045563

Folder label: “GCMS X 5/3/02 A 5/7/02

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\MSDCHEM\1\DATA\050702\0503LB.D Vial: 5 Acq On 7 May 2002 4:24 pm Operator: Mclean Sample 5/3 kb Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 2 3-Penten-2-one, 4-methyl- Concentration Rank 5

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

5.03 0.25 ug/L 228597 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual —2 1 3-Penten-2-one, 4-methyl- 98 C6H10O 000141-79-7 2 3-Penten-2-one, 4-methyl- 98 C6H10O 000141-79-7 80 3 2-Pentene, 3,4-dimethyl-, (E) - 98 C7H14 004914-92-5 72 4 2-Pentene, 2,3-dimethyl- 98 C7H14 010574-37-5 72 Abundance Scan 331 (5.024 min): 0503LB.D (-323) (-) m/z 83.10 100.00% 55 83

5000 98 ........................... 43

[ I 1 I I I I I I-“I | I I 11 I I I I I nu I I

4.60 4.80 500 5.20 5.40 T I [ I l i f | I I I I | I I I I | I I I I | I r i I p-1 । > । । । i-] । [ r l i • I I 1 I I I 1 m/z 55.10 87.24% m/z-> 10 20 30 40 50 60 70 80 90 100 Abundance #116425: 3-Penten-2-one, 4-methyl- 55 83

5000 43 1 1 ' ' 1 I T"L I । >f I | । ! I I | । । > 98 4.60 4.80 5.00 520 5.40 29 m/z 98.10 46.34% 38 . 50 I I- I I — I I I I I I [ ■ I . 111 , , p + । 1 1 I 62 67 1.I/I I I I 77. I ’ I I I । 1 ' 89 1 i 1 1 ’ 1 i 1 1 m/z-> 10 20 30 40 50 60 70 80 90 100 Abundance #116450: 3-Penten-2-one, 4-methyl- 55 83 UL I I I i I I I [ I I - I I I Illi I I I I 98 4.60 4.80 5.00 5.20 5.40 43 5000 28 m/ z 43.10 42.40%

WMMov Wld ’ ■ i 1 1 ■ • i ‘ 1 11 ' ' 38 , 50 , 1dyt ! , , +67 , kr ' PT i 1 ■ m/z-> 10 20 30 40 50 60 70 80 90 100 Abundance #32908: 2-Pentene, 3,4-dimethyl-, (E)- j I l l l l' I ' > I I ! I 'I I I I I I I I I 1 I 55 83 4.60 4.80 5.00 5.20 5.40 m/z 39.10 29.38% 41 5000 27 98

..... 1 . J.... 15 69

n/z-> — 10 20 +36,4 —51 30 40 50 , 63 | | ' i 11 1 ' I 1 1 1 ’ I 60 70 77 80 I 91 90 TI 1 ' 100 4.60 4.80 5.00 5.20 5.40

0503LB.D 050102.M Thu May 09 09:20:59 2002 Page 5

NYC-WTC_000045555

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NYC-WTC_000045555Source: NYC Law Department, mirrored locally

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