GCMS analysis results for sample AE00833, Feb 2002

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Laboratory report showing GCMS analysis of sample AE00833 including surrogate recovery and unknown compounds.

NYC-WTC_000052069–000052087

Folder label: “GCMS X 1/11/02 A 1/31/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\MSDCHEM\1\5973N\02JAN31\00833.D Vial: 1 Acq On : 31 Jan 2002 2:42 pm Operator: Sample : 508 scan Inst : Instrumen Mise : January 31, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 Propane, 1,1-dimethoxy-2-me... Concentration Rank 5

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

3.92 0.06 ug/L 32231 1,4-Dichlorobenzene-d4 9.71

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Propane, 1,1-dimethoxy-2-methyl-... 118 C6H14O2 041632-89-7 9 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H1402 000000-00-0 9 3 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 9 4 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 9 Abundance Scan 48 (3.922 min): 00833. D (-) m/z 75.10 100.00% 75

5000 87

41 44 47 55 A 3.80 4.00 4.20 3.60 0 - । • 11 • • 11 ■ । 'l > > "111111111 m/z 87.10 38.54% /z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17844: Propane, 1,1-dimethoxy-2-methyl- $$ Isobutylaldehy... 75

------ 5000 87 360 3.80 4.00 4.20 47 55 m/z 55.10 29.81% 31

n/z—> 4+4 0 TTTI‘0‘I—tIUOt1r 20 25 30 35 40 45 50 TUTT 59 71 ■ I ■ >»1....... 1" ' । ITT 55 60 65 70 75 80 85 90 95 r ■ ■ ■ i ■ ■

Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... 75 3.60 3.80 4.00 4.20 5000 m/z 47.10 20.90% 87 55 29 41 47 59 71 0 । I rrrrrrm 11111 > 11 " 111111111"।1n- 1" 11" " i" " i111 r PTTTTTT 11 . ......... n/z-> 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 1 ' l '' 11 | "| T I 1 1 I ' ' > । l1 1 11 I 75 3.60 3.80 4.00 4.20 m/ z 45.10 9.11% 5000 87 55 31 0'I । । 1 । 1 । 1 । । ■ । I > 1 4347 ■ ............ .................. 59 71 111*19pumr ................. ......... anjenlo"" TIT Tl/Z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

00833.D SCAN508.M Fri Feb 01 09:18:58 2002 Page 4

NYC-WTC_000052076

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NYC-WTC_000052076Source: NYC Law Department, mirrored locally

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