GCMS analysis results for sample AD31671, Jan 28 2002

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Laboratory report showing GCMS analysis of sample AD31671 including unknown compounds and surrogate recovery data.

NYC-WTC_000050024–000050038

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

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NYC 9/11 Public Portal Document Library searen compound Report Data File : C: \MSDCHEM\1\5973N\02 JAN17 31671 .D Vial: 6 Acq On : 17 Jan 2002 6:59 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 2 3-Methyl-2,3-epoxybutanal Concentration Rank 4 R.T. EstCono Area Relative to ISTD R.T. 4.24 0.20 ug/L 66727 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 3-Methyl-2,3-epoxybutanal 100 C5H802 000000-00-0 39 2 Formic acid, 2-methylpropyl este... 102 C5H10O2 000542-55-2 27 3 Methacrylamide $$ 2-Propenamide, ... 85 C4H7NO 000079-39-0 9 4 Formic acid, 1-methylpropyl este... 102 C5H10O2 000589-40-2 9 Abundance Scan 76 (4.241 min): 31671 .D (-) m/z 85.00 100.00% 85 41

5000

55 60 .... MSA.... 3.80 4.00 4.20 4.40 4.60 0 — i-p-r TVTDmmpurt ' ■ “ । ‘ ।■ i ■ ■ “ । ■ m/z 41.10 73.30% miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Abundance #7969:3-Methyl-2,3-epoxybutanal 41 85

5000- A । • ■ ■ * । ■ j 60 3.80 4.00 4.20 4.40 4.60 m/z 43.10 50.38% . 100 01 ’ $"""-1’12111011111111 .. ।... > ।.. 11!... > 11 n . Tg niz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 Abundance

5000 #9310: Formic acid, 2-methylpropyl ester (CAS) $$ Isobutyl... 29 43 56

60 AA- 3.80 4.00 4.20 4.40 4.60 m/z 39.10 V.Nw 26.55%

4733 pon T TITPT 4 I... i.... ।.... ।.... ।..1. ।.... ।i.... ।" " । ■ ■ O+ 11 Tr’" 11 miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 Abundance #3602: Methacrylamide $$ 2-Propenamide, 2-methyl- $$ .alph... I ' ' ‘ I ' ■ ■ I' 41 85 3.80 4.00 4.20 4.40 4.60 m/z 60.00 26.16% 5000 69

0 ............... 1 46 53 —TmTpn ।1< * * ।' > > ■ । • ■.. ।।। n/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 3.80 4.00 4.20 4.40 4.60

31671.D SCAN508.M Tue Jan 22 08:37:26 2002 Page 4

NYC-WTC_000050031

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NYC-WTC_000050031Source: NYC Law Department, mirrored locally

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GCMS analysis results for sample AD31585, Jan 28 2002 · Box DEP Box 28

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