GCMS results for unknowns, sample AD26477, Dec 2001

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GCMS analysis report for sample AD26477 showing detection of unknown compounds and surrogate recovery data from December 21, 2001.

NYC-WTC_000018923–000018933

Folder label: “GCMS X 12/17/01 A 12/22 - 12/23/01”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : M:\INSTRU~1\209\DATA\DEC2701\26477.D Vial: 10 Acq On : 27 Dec 2001 8:54 pm Operator: 209 GALOS Sample : GC/MS SCAN 12/13 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.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. 7.61 4.12 ug/1 1267250 1,4-Dichlorobenzene-d4 11.68 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Silane,/ tetramethyl - 88 C4H12Si 000075-76-3 9 2 1,3-Dipxolane, 2-methyl- 88 C4H802 000497-26-7 9 3 N-Ethylformamide 73 C3H7NO 000627-45-2 9 4 1,3-Dioxolane, 2-(3-bromo-5,5,5-tri 352 C10H16BrC13O2 000000-00-0 9 Abundance Scan 280 (7.612 mln): 26477.D (-) m/z 73.0.0 100.00% 73 5000 43 1**1*4411*** 'T^-1 1 1 1 1 1 7.20 7.40 7.60 7.80 8.00 0 ..................... 1i ■ ■ 1 ' 1 38.1, 1*mmn ■ ■ I 1 1 1 I ' 1 ! ' 50 55. . 67, । , 87 • • • i • •> 1 । 103 • i • ’■ ■ ■ । ‘ m/z 43.05 32.42% miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #62932: Silane, tetramethyl- 73 5000 r’-r ‘ ""I ' '■> 'I > | ■ | | I 1 ■ । ■ 7.20 7.40 7.60 7.80 8.00 45 m/z 45.0,5 11.70% 1.5 I 53 59 88 ' f । 1 1 1 । i1 >*»• j’। i i । i । । ' i ■ ■ 1 • i ■ • • • i EvrT"u > miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #62902; 1,3-Dioxolane, 2-methyl- 73

7.20'7.40 7.60 7.80 8.00 ' 5000 43 m/z 41.00 10.92% 58 27 87 **IB**III**1*1 1 ■ ■ i * ■ ■ 1 I ■ ■ • 1 I 1 1 1 1 i ' 1 m/z--> 10 20 30 40 50 60 70 80 90 100 110 _.................... / —........... Abundance #292: N-Ethylformamide -I I I I’I’l I I T TT‘ 30 7.20 7.40 7.60 7.80 8.00 73 m/z 71.00 7.04% 5000 44 58

m/z-> 15 r i । i 11 i r , I i 10 20 30 i -44 40 — 50 60 J i । » । । I i k 1 j-1 n —। i i n । i 1 70 80 90 100 110 138 > » 1 J i ii I’I TT‘ i j i j i r 7.20 7.40 7.60 7.80 8.00

26477.D GCMS1126.M Tue Jan 29 14:22:07 2002 Page 1

NYC-WTC_000018930

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NYC-WTC_000018930Source: NYC Law Department, mirrored locally

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