GCMS analysis report for sample AE01547, March 2002

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GCMS laboratory results for sample AE01547 conducted on March 5, 2002, showing surrogate recovery and unknown compounds.

NYC-WTC_000010066–000010085

Folder label: “GCMS X 1/23/02 A 2/21/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C:\MSDCHEM\l\5973N\02FEB21\01547.D Vial: 3 Acq On : 21 Feb 2002 4:52 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 21, 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 3 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.07 ug/L 26211 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 ISOBUTYRALDEHYDE, DIMETHYLACETAL. .. 118 C6H14O2 000000-00-0 9 2 Propane, 1,1-dimethoxy-2-methyl- 118 C6H1402 041632-89-7 9 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 9 4 Propane, 1,1-dimethoxy-2-methyl-... 118 C6H14O2 041632-89-7 9 Abundance Scan 49 (3.927 min): 01547.D(-) m/ Z 75.00 100.00% 75

5000 87 55 Aannbegi T T 45 3.60 3.80 4.00 4.20 m/z—> 0: -H T’lun-mma’taot 20253035404550556065 70 75 80 85 90 95 ’ 88 1 I‘ ' I " 84— m/z 87.00 36.09% Abundance #17847: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... 75

5000 ------------ 87 3.60 3.80 4.00 4.20 31 47 55 m/z 55.00 25.45% 71 0- i r 1 1 1 i 1 r " i I' 1 1 1 i 1 1 1 ' i 1 43 59 1 । 1 1 1 1 T-p-r TTg P {mmntp Iratyun m/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- 75 3.60 3.80 4.00 4.20 ‘ ' 5000 m/z 45.10 8.80% 87 55 24 47 miz-> 0hmmmpp 31 —+L 59 71 1"11 ■ ■ ■. [ ■. ■ ■ 11 ■. ■ —pm +T-p-TTTp-T 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... ’ ‘ I ‘ ‘ ‘ ‘ I * ' ' ‘ ‘ ’ I ’ ’ • * I 75 3.60 3.80 4.00 4.20 m/z 47.05 8.69% 5000 87 55 29 41 47 59 71 0—mmm ......... 1 ■111■■■■I■ " ■ 11■ ■ ■ —p 1 . | ■ ■ ■ . | » ■ ' । 1 ■ • ■ i 1 1 1 1 i 1 1 1 1 r1 1 1 1 i n/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

01547.D HP022102.M Mon Feb 25 10:55:24 2002 Page 5

NYC-WTC_000010074

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GCMS analysis report for sample AE01511, March 2002 · Box DEP Box 14

NYC-WTC_000010047

GCMS laboratory results for sample AE01511 conducted on March 5, 2002, showing surrogate recovery and unknown compounds.

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