GCMS analysis results for sample AE00844, Feb 26 2002

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Laboratory report detailing GCMS scan results for sample AE00844, including detection of unknown compounds and surrogate recovery data.

NYC-WTC_000052291–000052310

Folder label: “GCMS X 1/11/02 A 2/7/02”

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\1\5973N\02FEB07\00844 .D Vial: 7 Acq On : 7 Feb 2002 7:24 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 7, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP020702 .M (RTE Integrator) Title : 508 scan method Library- : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 3 Propane, 1,l-dimethoxy-2-me... Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. 3.92 0.08 ug/L 30095 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Propane, 1,1-dimethoxy-2-methy1- 118 C6H1402 041632-89-7 83 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 74 4 ISOBUTYRALDEHYDE, DIMETHYLACETAL . . . 118 C6H14O2 000000-00-0 9 Abundance Scan 48 (3.922 min): 00844. D (-) m/z 75.10 100.00% 75

5000 87 55 A.... . -p r | r , 1 ! | 41 47 3.60 3.80 4.00 4.20 m/z-> 0- 5 • ■ i ■' > > l "' ■ i" ■ ■ i ■ • • ■ t L 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 71 ................ I ■ i ■ ■'11 ■ ■ " r ■ ■' i' ■ ■ ■ i ■ ■ m/z 87.10 39.62% Abundance #17846: Propane, 1,1-dimethoxy-2-methyl- 75 —

5000 87 3.60 3.80 4.00 4.20 55 m/z 55.10 24.91% 24 47 m/z-> Of TTTTT 31 4 " 11' I' -1' 11' " liir...... 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 111' ‘ 111 59 71

Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75 3.60 3.80 4.00 4.20 5000 m/z 47.10 15.25% 87 15 55 27 31 47

n/z-> of ’ I’’ 5 L TITTTTrgi 11' 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 " i' ■ 59 T - 11111111111 71 I " " i11

Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... NJ.... I........... 75 3.60 3.80 4.00 4.20 m/z 45.10 11.48% 5000 87 55 29 41 47 59 71 — Of —mmTPTTTT " " I" " 11"1111'1 IPyT ' ’ i" " i" m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3,80 4.00 4.20

10844 .D HP020702.M Thu Feb 21 09:58:16 2002 Page 5

NYC-WTC_000052299

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