GCMS analysis results, sample AE04132, April 2002

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Gas chromatography-mass spectrometry analysis of environmental sample AE04132 conducted April 1, 2002, measuring organic compounds including 2,4-DDD surrogate.

NYC-WTC_000011779–000011788

Folder label: “GCMS X 2/25/02 A 3/23/02”

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Data File : C:\HPCHEM\l\DATA\MAR2202\4132.D Vial: 28 Acq On : 23 Mar 2002 10:42 pm Operator: Sample : gc/ms scan 2/25 Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0308.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.

8.14 3.39 ug/1 420482 1,4-Dichlorobenzene-d4 12.27

Hit# of 5 'Tentative ID MW MolForm CAS# Qual l Silane, tetramethyl- 88 C4H12Si 000075-76-3 9 2 1 - But anamine, 3 - methyl - 87 C5H13N 000107-85-7 9 3 N-Ethylformamide 73 C3H7NO 000627-45-2 9 4 Butane,Z2-methoxy-2-methyl- 102 C6H140 ________ 000994-05-8 9 Abundance Scan 338 (8.145 min): 4132.D (-) m/z 73.00 1 00.00% 73

5000 43 tTt1**1//*/t*1/n/d/*1d/n.tk.B 87 7.80 8.00 8.20 8.40 38 |, | 50 55 67. । 103 1’114/1/1 1 I ' i • । • • i ■ Ir • i ‘ ■ • 1 i ■ ■ • • i ■ '■ ■ ■ i ■ 1 m/z 43.05 28.38% miz->____10 20 30 40 50 60 70 80 90 100 110 Abundance #62932: Silane, tetramethyl- 73

5000 ■ ■ I ■ ‘ ‘ ' i 1 ■ ' 1 r1 ' I 1 1 1 1 1 1 7.80 8.00 8.20 8.40 45 m/z 41.05 10.80% 15 ! 53 59 88 • * j • ■' ■ ■ i • • ■ • i ■ • I f 1'1 « I 1' ।• i ’ l . . . . । . ' i • ■ ■ ■ I ■ ‘ 1 • i 1 1 1 ' 1 1 1 miz-> 10 20 ___30 40 50 60 70 80 90 100 110 Abundance 7os ' utanaginej 5-i 30 I’I*1 ’I2I611* TIIu 7.80 8.00 8.20 8.40 5000 m/z 45.0510.24%

15 41 55 70 87 ; ' ' I ' ' ' ' I ' ' ' ' I ‘ ‘ ' I ' ■ ' ‘ I ‘ ' 1 I 1 ' ' ' i ' ' ■ • I ' ' ' ‘ l rT-rrp-TTTpn m/z-> 10 20 30 40 50 60 70 80 90 100 110 _ Abundance #292: N-Ethylformamide 111//1/2/2//1/1/2/1//1/1//0/1/2//2/.1.B 30 7.80 8.00 8.20 8.40 73 m/z 71.00 6.78% 5000 44 58

15 -P • ■ ।1 1 i ■ ■ I ‘ ' ■ I ' 1 ' ' I '■ '■1 1 1 1 1 1 1 I ' ' 1 '■ I 1 1 ' ' i ‘ ‘ i ‘ ‘ 1117 . । । . m/z—> 10____ 20 30 40 50 60 70 80 90 100 110 7.80 8.00 8.20 8.40

4132.D GCMS0308.M Wed Mar 27 10:11:12 2002 Page 1

NYC-WTC_000011786

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NYC-WTC_000011786Source: NYC Law Department, mirrored locally

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