GCMS analysis results for sample AD31255, Feb 25, 2002

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Laboratory report documenting gas chromatography-mass spectrometry analysis of environmental sample AD31255 conducted on February 25, 2002.

NYC-WTC_000016423–000016441

Folder label: “GCMS X 12/24/01 A 1/9/02 2/15/02”

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NYC 9/11 Public Portal Document

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Data File C:\HPCHEM\1\DATA\JANO802\31255.D Vial: 9 Acq On 9 Jan 2002 9:35 pm Operator: 209 GALOS Sample gems scan 12/24 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0103.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 1 Silane, tetramethyl- Concentration Rank 1

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

7.47 3.40 ug/1 927709 1,4-Di chiorobenzene-d4 11.53

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Silane, tetramethyl- 88 C4H12Si 000075-76-3 9 2 1,3-Dioxolane, 2-methyl- 88 C4H802 000497-26-7 9 3 N-Ethylformamide 73 C3H7NO 000627-45-2 9 4 1,3-Diowlane, Abundance 2-(3-bromo-5,5,5-tri 352 C10H16BrC1302 Scan 264 (7.470 min): 31255.D (-) 000000-00-0 9 m/ z 73.00 ’ 100.00% 73

5000 43 ■ ■ ■ ■ ।11111 ’111 1OsPi । i >, । 7.20 7.40 7.60 7.80 mpmpthmmmm .1 1 55 ,, 87 103_______________ ______ 207 l.. ।. .II!..., ।..,. ।.,,.!.,., ।,.,. ।..., ।.... ।. > >, ।, l. । >, >. ।.... ।.... ।> m/z 43.05 32.00% m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 Abundance #62932: Silane, tetramethyl- 73

5000 aIIItinui IIa iiii 7.20 7.40 7.60 7.80 45 m/z 41.00 11.57% 15 | 55 88mn"ImmOu“IUUmOTTT TUOn—g—mnmge*u1 ——— m/z-> 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 Abundance #62002: 1,3-Dioxolane. 2-methvi- 73 PPTTt 7.20 7.40 7.60 7.80 5000 43 m/z 45.05 11.08% , 58 27 87 TPTg TTpTTTpTTTpTTTpTTTpTTTp-rrrpTTTJTTTTpTTTJTTTTpTT^^ m/z-> 10 2030405060 70 8090 100110120130140150160170180190200210 Abundance #292: N-Ethylformamide mnm 30 7.20 7.40 7.60 7.80 73 m/z 71.00 6.55% 5000 44 58

m/z-> LXI Ttm । ■ ■ • ■ ।. i.. ।.... t.. >. ।, 111111111 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210 j... । ]. 11.11 >. । ।. । .p i a p 11.1»11. ।. ।». ।».. 1 1uui -‘i 7.20 7.40 ‘ • 1 ‘ 7.60 ‘ ' I ‘ ‘ 7.80

31255.D GCMS0103.M Wed Feb 06 11:23:36 2002 Page 1 NYC-WTC_000016430

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NYC-WTC_000016430Source: NYC Law Department, mirrored locally

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NYC-WTC_000016442

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