GCMS analysis results for unknown compounds, June 2002

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Laboratory report documenting GCMS analysis of sample AE12738 with surrogate recovery data and identification of unknown compounds.

NYC-WTC_000015282–000015310

Folder label: “GCMS X 6/3/02 A 6/7/02”

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NYC 9/11 Public Portal Document

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Data File C:\MSDCHEM\1\DATA\060702\12739.D Vial: 15 Acq On 7 Jun 2002 7:58 pm Operator: Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 10 Butanoic acid, 2-methyl-, m. . Concentration Rank 4 R.T. EstConc Area Relative to ISTD R.T. 4.53 2.24 ug/L 1783890 1,4-dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Butanoic acid, 2-methyl-, methyl... 116 C6H1202 000868-57-5 9 2 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 000868-57-5/9 3 1-Hydroxy-2 -but anone 88 C4H802 005077-67-8 5 4 2-Chloroethanol 80 C2H5C1O 000107-07/3 4 Abundance Scan 246 (4.525 min): 12739.D (-244) (-) m/z 88.00 100.00% 88

5000 35 41 51 57 "hMnuw/oo 70 82 101 .... ■ ' ■ i ■ ■ ■ ■ i ■ ■ ■ ■ i ■ ■ ■ ■ i ■ ■ 1 ■ i

/z-> 0 20 ■ i ■ ■ ■ ' i ■ 30 lll— 40 50 I' ■ ■ ■ l ■ ■ 60 70 80 90 100 110 120 m/z 4.20 4.40 51.00 4.60 4.80 79.28% Abundance #112664: Butanoic acid, 2-methyl-, methyl ester 57 88 41

5000 ' ■ ‘ I ‘ ‘ 1 'T‘ 1 1 1 I ' 1 1 ' 1 1 1 1 1 I 4.20 4.40 4.60 4.80 101 m/z 57.10 74.13%

miz-> Abundance 0 ' I ■ ■ ' ' I ' 1 ' ''I 20 30 40। 50 +11 60 e.1— 70 80 | 1 IU8 ■ ■ 1 1 > • > I 1 • * 1 I > < 90 :#117026: Butanoic acid, 2-methyl-, methyl ester 100 110 116 120

57 83 __ ■ • ■ i■ ■ ■' i • ■ ■ ■ r • 4.20 4.40 4.60 4.80 5000- m/z 41.10 50.90% 29 41

n/z-> Abundance ol - 20 30 —+4651., ,62 69 74 83 1 . 40 50 60 ‘T' ‘ 1 ‘ I 1 1 1 1 1 1 11 70 80 90 #108087:1-Hydroxy-2-butanone I ■ 1 ■ ■

100 101

i 1 ■ ■ ■

110 116 ■ 1 ■ i 1 ■

120 ■ ■ WMaloa ■ • ■ i ■ ■ ■ ■ i ■ ■ ■ ■ । ■ i ■ ■ ■ ■ । 29 57 4.20 4.40 4.60 4.80 m/z 84.00 37.37% 5000

0 P— 3743—51 1.. 73.. ?. —.... miz-> 20 ;30 40 50 60 70 80 90 100 110 120 4.20 4.40 4.60 4.80

12739.D 060302.M Mon Jun 10 11:51:12 2002 Page 13

NYC-WTC_000015299

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NYC-WTC_000015299Source: NYC Law Department, mirrored locally

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GCMS analysis results for unknown compounds, June 2002 · Box DEP Box 15

NYC-WTC_000015224

Laboratory report documenting GCMS analysis of sample AE12736 with surrogate recovery data and identification of unknown compounds.

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