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GCMS analysis results, sample AE11157, May 22, 2002

Machine-extracted title · confidence 80%

GCMS analysis for sample AE11157 identifying other unknown compounds with a 2,4-DDD surrogate recovery of 91%, completed May 22, 2002.

NYC-WTC_000024652–000024664

Folder label: “GCMS X 5/13/02 A 5/15/02

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\MSDCHEM\l\DATA\020515\11157.D Vial: 9 Acq On : 15 May 2002 7:43 pm Operator: Nefliu Sample : sample Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1

Peak Number 2 2-Pentanone, 4-hydroxy-4-me.. Concentration Rank 1

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

6.16 23.90 ug/1 1877420 1,4-Dichlorobenzene-d4 11.38

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pent anone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 53 2 2 -Pent anone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 50 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 32 Abundance Scan 524 (6.158 min): 11157.D (-509) (-) m/z 43.10 100.00% 40

59 5000

101 580 6.00 6.20 6.40 6.60 . ............. 38,1 +48,53+ I ' ■ ‘ ' I ' 1 1 1 I ' ' 1 ' I ' ' ' 1 1 1 1 1 1 1 1 69 83 88 | m/z 59.10 51.36% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 40

5000 '580 6.00 6.20 'eXO 6.60 59 m/z 58.05 18.68% « 101

n/z-> ......... 10 20 37,32 30 38,140 +-48,53 60 50 67 72 77 83 91 96, | II*I!I‘II‘IIIII‘I‘IIIII 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 40 - . . . 5.80 6.00 6.20 6.40 6.60 5000 m/z 101.10 17.17% 59

15 <11 101 , , , . 26,1 , 381 +53+ 83 ------ iz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 40 580 6.00 6.20 6.40 6.60 m/z 41.10 7.60% 5000 59

_______ ____ 93 no 101 n/z-> ......... 10 20 29,31 30 .38,140 1 ■ ' i ' 50 0 I‘4*II*+‘‘1‘IIIIII‘I‘II 60 70 80 90 93 ।______ 100 110 5.80 6.00 6.20 6.40 6.60

11157.D SCAN020507.M Thu May 16 09:38:53 2002 Page 4

NYC-WTC_000024659

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NYC-WTC_000024659Source: NYC Law Department, mirrored locally

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