GCMS analysis results for sample AE11930, June 2002

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Laboratory report documenting GCMS analysis of sample AE11930 conducted on June 4, 2002.

NYC-WTC_000013551–000013573

Folder label: “GCMS X 5/22/02 A 5/23/02”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\MSDCHEM\1\DATA\052302\11930.D Vial: 10 Acq On : 23 May 2002 5:18 pm Operator: Mclean Sample : 5/22ad 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 11 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T.

5.93 10.30 ug/L 6049790 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2(86 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 72 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 72 4 5-Hexen-2-one 98 C6H10O 000109-49-9 14 Abundance Scan 485 (5.929 min): 11930.D (-479) (-) m/ z 43.10 100.00% 43

5000 59 101 — 11' • ■ ■ । 5.60 5.80 6.00 6.20

m/z-> 01 m 10 20 30 37,4 40 +53+ 50 60 111■'i■■■■i1‘ ■ ■ i ■1 ' ‘i1 • ■ • । 70 80 83 90 , | 100 119125 110 120 130 ■ i ■ ‘ ■ i■ m/ z 59.10 34.48% Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 1 1 i • ■ ■ ■ । 59 5.60 5.80 6.00 6.20 ■ 19.97% 15 101

niz-> Ot 10 L TTTr 20 30 25,31 37, h, 40 -53+ 50 60 70 80 90 100 I ■ • ■ ■ i ■ ■ ■ ■ i 83 ■ ■ i ‘ .' i| 1 ■ ■ ■ i ■ ■ ■ ■ i ■1 1 ■ i ■ ■ 110 120 130 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 *=*=*rToyrmrrotrerrT 5.60 5.80 6.00 6.20 5000 m/z 101.10 13.04% 59

01 ...... 25,31,37 / Fangusk 62 83 . 101| 93 I • •1 • i1 ■ ■ • i ■1 ■ ■ i ■' •111 • ■ ■ i ■ ■ •111 ■ ■1111 n/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 rn/z 41.10 5.74% 5000 59 101 27 37 53 67 77 83 91 । 0: *44 +4 'I■■‘111 ■ ■ ■ i ■ ■' ■ i ■ ■ ■1 i1 ■ ' ■ i ■ ■ ■ ' i ■ ■ ■ ■i■■ ■ ■ i ■ ■ ■ ■ i ■ ■ ■ ■ ATTTTT miz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20

11930.D 052202.M Wed May 29 09:50:19 2002 Page 14

NYC-WTC_000013569

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NYC-WTC_000013569Source: NYC Law Department, mirrored locally

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NYC-WTC_000013476

Laboratory report documenting GCMS analysis of sample AE11926 conducted on June 4, 2002, including surrogate recovery data.

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