GCMS analysis results for sample AD31639, Jan 28 2002

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Laboratory report showing GCMS analysis of sample AD31639 including unknown compounds and surrogate recovery data.

NYC-WTC_000049957–000049974

Folder label: “GCMS X 1/3/02 A 1/17/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02JAN17\31639.D Vial: 2 * Acq On : 17 Jan 2002 3:39 pm Operator: Sample : 508 scan Inst : Instrumen Mise : January 17, 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 1 Furan, 2,3-dihydro-4-methyl... Concentration Rank 9

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

4.84 0.23 ug/L 74227 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Furan, 2,3-dihydro-4-methyl- (CA... 84 C5H80 034314-83-5 59 2 2-Butenal, 3-methyl- 84 C5H80 000107-86-8 58 3 2-Ethylacrolein $$ 2-Ethacrolein... 84 C5H80 000922-63-4 53 4 Furan, 2,3-dihydro-4-methyl - 84 C5H80 034314-83-5 53 Abundance Scan 128 (4.835 min): 31639.D(-) m/z 84.00 100.00% 84

55 41 5000 59

I ' ' ' ■ I ■ ■ ■ ■ i ■ ■ ‘ ■ i ■ ■ ■ ‘ i ■ ■ 4.40 4.60 4.80 5.00 5.20 Of ■' i “ " i •'1111 ‘1111 II hl. I.44 51 4 Gaaaud m/z 55.10 62.80%

_M i1 • ■ ‘ i ■ ■ ■ ■ i ■ ‘ ■ i ■ ‘ ■ i • ■ miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #3351: Furan, 2,3-dihydro-4-methyl- (CAS) $$ 4-METHYL-2,3-... 55 84

5000 41 TiE ' ■ I • 1 4.40 4.60 4.80 5.00 5.20 69 m/z 41.10 57.18% - o! miz—> 2025303540455055 60 65 70 75 80 85 90 95 Abundance #3224:2-Butenal, 3-methyl- 84

4.40 MM AM.. 4.60 4.80 5.00 5.20 5000 41 55 m/z 83.00 49.41%

50 . 66 69 niz-> ol ■ ■ i “ ■ ■ i “ ■ ■ i • ■ ■ ■ i ‘“ i Han 20 25 30 35 40 45 50 55 60 65 70 75 80 85 mpHikahan ' i" " 11" 11" " I ■ " ‘ l" “ i ■11 ■ i 90 95 Abundance #3305:2-Ethylacrolein $$ 2-Ethacrolein $$ Butanal, 2-meth... i ■ ‘ ‘ 1 i ‘ ‘ ■ i ■ • ‘ • i ■ ■ • • i ■ ■ • 55 4.40 4,60 4.80 5.00 5.20 84 m/z 39.10 47.64% 5000 39 27 44 51 66 0 " i ■ “ ■ i' ■ ■ i “ “ i' ■ T ■ ■ i■ ■ " i1 ■ “ i " • ■ i ■ ' i11 ■ I " ‘' 1 -r-r-pr-r m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.40 4.60 4.80 5.00 5.20

31639.D SCAN508.M Tue Jan 22 08:37:08 2002 Page 3

NYC-WTC_000049963

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NYC-WTC_000049963Source: NYC Law Department, mirrored locally

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