GCMS analysis results for sample AE03075, March 5 2002

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Laboratory report documenting gas chromatography-mass spectrometry results for sample AE03075 including surrogate recovery.

NYC-WTC_000010887–000010906

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\02714.D Vial: 4 Acq On : 28 Feb 2002 1:00 pm Operator: Sample : 508 scan 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 7 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.08 ug/L 31430 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Propane, 1,1-dimethoxy-2-methyl-... 118 C6H14O2 041632-89-7 43 2 Propane, 1,1-dimethoxy-2-methyl- 118 C6H1402 041632-89-7 43 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 43 4 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H1402 000000-00-0 43 Abundance Scan 49 (3.927 min): 02714.D (-) m/z 75.00 100.00% 75

5000 87 55 ..... ............ . 45 59 71 3.60 3.80 4.00 4.20 0 . . 1,1.1^..,. — - • i • • ■ • i ■ t > i * i ■ * । *1 m/z 87.10 41.29% /z—> 202530354045505560 65 70 75 80 85 90 95 Abundance #17844: Propane, 1,1-dimethoxy-2-methyl-$$ Isobutylaldehy... 75

5000 1***I*‘‘‘I 87 ft 3.60 3.80 4.00 4.20 31 47 55 m/z 55.10 23.52% 43, 59 71 01sassssssu-ots1adotu-date T-r-p-r '111111।11,,, 11 "I ""I1 A 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- 75 — —

3.60 3.80 4.00 4.20 5000 m/z 45.10 9.87% 87 55 47

iz-> O'tmmmmp 31 43, I 59 m 71 r ■111 " »11 ■ ■ ■»j l ■ <» —pinmt "I""!1' 20 25 30 35 40 4550556065 70 75 80859095 Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1 -Dimethoxyi... 75 i . । . —MW

w 3.60 3.80 4.00 4.20 m/z 47.00 7.45% 5000 87 55 29 41 47 59 71 0II । • ■ ■ • i • . ■ I । l • > • । ■ । • 111... 111 > 1111111 .Hr • ।. • • * । • 1' I ■ ' ■ ‘ I ' • • i ■ ■ ■ ■ i ■ * • • i ■ ' 1 1 i 1 1 1 ' i mfe-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

02714.D HP022102.M Fri Mar 01 10:07:00 2002 Page 4

NYC-WTC_000010894

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GCMS analysis results, sample AE02719, March 2002 · Box DEP Box 14

NYC-WTC_000010987

Gas chromatography-mass spectrometry analysis of sample AE02719 performed March 5, 2002, reporting other unknown compounds and surrogate 2,4-DDD recovery data.

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