GCMS analysis results, sample AE08210, April 2002

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Gas chromatography-mass spectrometry analysis of sample AE08210 detecting unknown organic compounds and measuring 2,4-DDD surrogate recovery at 73%, April 22, 2002.

NYC-WTC_000048013–000048026

Folder label: “GCMS X 4/8/02 A 4/18/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C:\HPCHEM\l\DATA\APR1702\8210.D Vial: 21 Acq On : 18 Apr 2002 3:45 am Operator: Sample : gc/ms scan 4/8 Inst : 209 Mise : Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\GCMS0412.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L

Peak Number 3 3-Isopropoxy-l,1,1,7,7,7-hexam Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 37.31 0.96 ug/1 86069 Perylene-dl2 37.87

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 3-Isopropoxy-z, 1,1,7,7,7-hexamethyl 576 C18H5207Si7 071579-69-6 38 2 Trisiloxane, A,1,1,5,5,5-hexamethyl 384 C12H3604Si5 003555-47-3 32 3 Mercaptoacetic acid, bis(trimethyls 236 C8H20O2SSi2 006398-62-5 17 4 Butanoic acid, 3-methyl-3-[(trimeth 262 CllH26O3Si2 055124-90-8 16 Abundance / Scan 3514 (37.308 min): 8210.D (-) m/ z 73.00 100.00% 73 147 221 5000 355 AwN l 281 — I | | | r i I i ।— i— i i" i " । RV I ' J I I | I_ i i i । 429 i 1 1 1 1 1 ' 'T 1"Ag* 1 193 — il I — rl r I 327, 401,1............. 37.00 37.20 37.40 37.60 m/z 147.00 74.86% m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #60503:3-lsopropoxy-1,1,1,7,7,7-hexamethyl-3,5,5-tris(trim 73 M\ r 5000 ’’’I’IIII-II’T’I 147 37.00 37.20 37.40 37.60 m/z 221.05 51.49% 221 281 327 — 415 519 561 1 ‘ l ■ ■ ■ ■ I ■ ■ > ■ | 1 > • ■ । 1 r । । । ■ i—r-r—|-i- i. । . . ' ' i ' ' ' 1 i ■ 1 ' 1 i ■ ' 1 ' i ' ' m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #74103: Trisiloxane, 1,1,1,5,5,5-hexamethyl-3,3-bis[(trimet 73 147 0—71 IIIIIIIIP ' ■ i ' ' ' ' i 37.00 37.20 37.40 37.60 5000 m/z 355.05 34.60% 281 45 369 — 207 249 --------- 117 - ■ i ■ ■ ■ i ■ ■ ■' ■ 1 । 1 ' ■ 1 । ■ m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #30949: Mercaptoacetic acid, bis(trimethylsilyl)- A/ AAA A____ ' ' 1 I ' ' 1 1 I ' ' ' ' I ' ’’ ' I ■ ' ' ’ I 73 37.00 37.20 37.40 37.60 147 m/z 281.00 27.55%

5000

n/z-> 45 104 ' ■ i 1 ‘ 1 ' 111 । 50 \100 । 150 193 . l 221

. । । ' 1 i 1 1 ■ 1 i ■ 1 1 ■ i 1 ■ ' 1 i ' 1 1 ■ i 1 ' 1 1 i 1 1 1 1 1 1 1 ' TT 1 200 250 300 350 400 450 500 550 aA ' ' i 1 ' 1 1 i 1 ' 1 1 i ' ‘ 1 1 i ' 1 1 1 i 37.00 37.20 37.40 37.60

8210.D GCMS0412.M Thu Apr 18 14:11:39 2002 Page 3

NYC-WTC_000048022

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NYC-WTC_000048055

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