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← Document results/DEP Box 16/GCMS X 12/24/01 A 1/9/02 2/15/02
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GCMS blank analysis results, Feb 4, 2002

Machine-extracted title · confidence 100%

Laboratory report of a GCMS blank run performed on February 4, 2002, to verify absence of contamination.

NYC-WTC_000016375–000016382

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

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Scanned page image, NYC-WTC_000016381
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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\HPCHEM\1\DATA\JAN0802\LBC.D Vial: 4 Acq On 9 Jan 2002 4:40 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 3.33 ug/1 931079 1,4-Dichlorobenzene-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-Ethylformanu.de 73 C3H7NO 000627-45-2 9 4 Butane, 2-mg/thoxy-2-methyl- 102 C6H140 000994-05-8 9 Abundance Scan 264 (7.470 min): LBC.D (-) m/z 73.00 1 00.00% 73

5000 43 ——BBTTTTTT 87 103 7.20 7.40 7.60 7.80 m/z~> 1110—110 20 30 40 50 5,5. 60 67, 1 1 < > * * । 50 60 । . . । ,4 ■ i ■ ■ ■ 1 । * * * * । * • * • । * 70 80 90 100 110 m/z 43.00 30.26% Abundance #62932: Silane, tetramethyl- 73 I

5000 —111TIOTTPT 7.20 7.40 7.60 7.80 45 m/z 41.00 11.38% TTI—n——m,"Hi 15 J 1 i 5359 I......“rt .......... 88............................. m/z-> 10 20 30 40। 50 60 70 80 90 100 110 Abundance 432902 i ?- nethyl- 73 "TrTu—mTTTurIt’rtTrnti 7.20 7.40 7.60 7.80 5000 43 m/z 44.95 10.85% 58 27 87 I 44I*I*III*II*I****I1 m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #292: N-Ethylformamide —PImTmuttt 33 7.20 7.40 7.60 7.80 73 m/z 71.00 6.81% 5000 44 58 ... 1 ■ i1 ' I ■ ■ i ■ 1 ■ ' i 1 ' 1 ■ i • 1 ■ ■ i ■ • • ■ i ' ' ' ' i 1 ■ ■ i ■ ■ ■ 1 i1 ■ 1 ‘ i ■ ■ ■ ■ i • ■ m/z-> 10 20 30 40 50 60 70 80 90 100 110 7.20 7.40 7.60 7.80

LBC.D GCMS0103.M Wed Feb 06 11:25:36 2002 Page 1

NYC-WTC_000016381

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NYC-WTC_000016381Source: NYC Law Department, mirrored locally

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