GCMS blank analysis report for sample AE02713, March 4 2002

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Laboratory report documenting a blank run for gas chromatography-mass spectrometry analysis of sample AE02713.

NYC-WTC_000010843–000010861

Folder label: “GCMS X 2/5/02 A 2/28/02”

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NYC 9/11 Public Portal Document Library Search Compound Report .. Data File : C:\MSDCHEM\l\5973N\02FEB28\0205B.D Vial: 1 Acq On : 28 Feb 2002 10:30 am Operator: Sample : lab blank 2/5 Inst : Instrumen Mise : February 28, 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 Propane, 1,l-dimethoxy-2-me... Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.07 ug/L 30142 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Propane, .1,1- dimethoxy-2-met hyl - 118 C6H14O2 041632-89-7 83 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 78 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 78 4 Heptane, 1,1-dimethoxy- (CAS) $$... 160 C9H20O2 010032-05-0 40 Abundance Scan 49 (3.927 min): 0205B.D (-) m/z 75.00 100.00% 7b

5000 87 55 A ’ IIIII I \ * ’Id ’IIIII 41 207 3.60 3.80 4.00 4.20 0 Illi 1 ................................................................................ I...... m/z 87.00 38.12% n/z-> 10 2030405060 70 8090 100110120130140150160170180190200210 Abundance #17846: Propane, 1,1 -dimethoxy-2-methyl- 75

5000- *4** | l > I ' | 1 ' 1 ! 87 3.60 3.80 4.00 4.20 55 m/z 55.10 26.62% ..... 31 ......... 0 ’’’1’11112111—201111103013117'I. |. h'i |.... |.... 11... |.... |.... 1.11111111111.1111.11111111111111111111 m/z-> 10 2030405060 70 8090100110120130140150160170180190200210 Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... 75 3.60 3.80 4.00 4.20 5000 m/z 47.10 12.54% 87 55 15 31 45 .. ,.. 117.. i 0-‘‘L‘—***48*1*4**1**2*1*1* -mtmmmpppT m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190200210 Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... ' 1 i 1 1 ' ‘ i ■ ' ■ ■ i ■ ■ • ■ i ■ ■ ■ ■ i 75 3.60 3.80 4.00 4.20 m/z 41.10 11.79% 5000 87 55 29 45 iill ।।...ij....।i .. '111 n .'l |.. n t|. i.. |.... 11... j||||| 1, 0- 1111<..।....h11... [.... ■ ■ • • • i ■ ■ ‘ ■ i 1 ■ ■ ■ i ■ 1 ■ • i miz-> 10 2030405060 70 8090 100110120130140150160170180190200210 3.60 3.80 4.00 4.20

0205B.D HP022102.M Fri Mar 01 10:06:45 2002 Page 4

NYC-WTC_000010849

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