GCMS analysis results for sample AE03245, March 2002

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Laboratory report documenting gas chromatography-mass spectrometry analysis of environmental sample AE03245 conducted on March 15, 2002.

NYC-WTC_000006085–000006104

Folder label: “GCMS X 2/12/02 A 3/01/02”

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NYC 9/11 Public Portal Document

Data File: C:\MSDCHEM\1\5973N\02MAR01\03245.D Vial: 6 ‘ Acq On : 1 Mar 2002 2:28 pm Operator: Sample : 508 scan Inst : Instrumen Mise : March 1, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\1...\HP022102.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 10 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.07 ug/L 31181 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual

I ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 3 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 74 4 Propane, 1,1-dimethoxy-2-methyl-... 118 C6H14O2 041632-89-7 9 Abundance Scan 49 (3.927 min): 03245. D (-) m/z 75.00 100.00% 75

5000 87 55 ' ■ i ■ 1 ■ ' i ■ ' ' 1 ........................................ .... 43 47 71 3.60 3.80 4.00 4.20 1 । 11 1 1 ■ । ■ ■ ■. । ■ > ■ ■ ।1' < 1 | 1 • >1 । " I ■. 11 |' l 11 । ■ i -r- 111" " i1'11J ■ ■ ■ 0b m/z 87.10 41.10% m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

5000 ■ ■ | ‘ ■ i ■ ■ ■ l i ■ ■ ■ ■ i ■ ■ ■ ■ i 87 3,60 3.80 4.00 4.20 55 m/z 55.00 24.30% 29 41, 47 71 m/z-> 0b —mmphmmmmm ""I" 59 ।...‘'I1 11 r " ' r 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ml '1 Abundance

_AA #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

3.60 3.80 4.00 4.20 5000 m/z 47.00 14.64% 87 15 55 47 59 71 Ob1" ' i “ " THTPTT m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17846: Propane, 1,1-dimethoxy-2-methyl- 1 mir 1 ■ i ■ 1 ' ■ i 75 3.60 3.80 4.00 4.20 m/ z 45.00 10.50% 5000 87 55 2 47 71 n/z-> 31 0b " i " " r '111" " 11" 11' " 59 .... L — —t I ■ I ■ । ■ I ■ ■ 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 TTT

13245.D HP022102.M Mon Mar 04 12:33:05 2002 Page 4

NYC-WTC_000006092

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