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GCMS comments for sample AD26536 detecting 1,1,2,2-Tetrachloroethane

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Analysis report dated December 16, 2001, identifying 1,1,2,2-Tetrachloroethane at 3.2 ug/L in sample AD26536.

NYC-WTC_000031831–000031846

Folder label: “GCMS X 11/6/01 A 12/7/01

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\HPCHEM\l\DATA\DEC0701\26536.D Vial: 11 Acq On 8 Dec 2001 3:14 am Operator: GALOS Sample gc/ms unknown 11/6 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 6 Ethane, 1,1,2,2-tetrachloro- Concentration Rank 4

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

9.62 3.23 ng/uL 766769 1,4-Dichlorobenzene-d4 11.88

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Ethane, 1,1,2,2 -tetrachloro- 166 C2H2C14 000079-34-5 5 2 Ethane, 1,1,2,2 -tetrachloro­ 166 C2H2C14 000079-34-5 0 3 Ethane, l,2,2-trichloro-l,1-difluor 168 C2HC13F2 000354-21-2 59 4 Ethane, 1,1,2-trichloro-2-fluoro- 150 C2H2C13F 000359-28-4 50 Abundance Scan 521 (9.616 min): 26536.D (-) m/z 82.95 100.00% 83

5000

95

m/z-> — 37 — 48 73 — l AQ 60 131 1 mH 168

30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 I ’ ■' ' I 9.20 m/z 9.40 9.60 84.95 9.80 10.00 62.48% Abundance #13774: Ethane, 1,1,2,2-tetrachloro- 83

5000 9.20 9.40 9.60 9.80 10.00 m/z 94.95 15.09%

m/z-> 35 T TAPTH 47 30 40 50 ■ ।1 ■1 ■ ।' 60 70 4 80 90 95 i • ■1 * i 131 II 100 110 120 130 140 150 160 170 I '' '' i IHP 168

Abundance #67919: Ethane, 1,1,2,2-tetrachloro- 83

9.20 9.40 9.60 9.80 10.00 5000 m/z 60.00 10.44% 35 60 96 I 47 60 I: । 1 | 1 !■! 1 | 1 1 I 1 | I ! 1 I | ' 1 '"I-| I I ■ -I | rm | 1 l * ' • ‘ 1 ' ' ’ ' I 131 TTTT r* • •11 168 1 ■ i' m/z—> 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 Abundance #14325: Ethane, 1,2,2-trichloro-1,1-difluoro- . .. 83 9.20 9.40 9.60 9.80 10.00 m/z 10.11% 5000

m/z-> del... %.... 4 30 40 50 60 70 80 90 । n-i-i 1111 ‘i 100 110 120 130 140 150 160 170 168 I' . ........... I' 9.20 9.40 9.60 9.80 10.00

26536.D NP112701.M Thu Dec 13 11:26:02 2001 Page 6

NYC-WTC_000031844

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NYC-WTC_000031844Source: NYC Law Department, mirrored locally

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