GCMS analysis results, sample AD30602, January 2002

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Gas chromatography-mass spectrometry analysis report for sample AD30602 showing detection of 2,4-DDD and other unknown compounds, analyzed January 22, 2002.

NYC-WTC_000017246–000017264

Folder label: “GCMS X 12/17/01 A 12/28/01 1/3/01 1/4/01”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : M:\INSTRU~1\209\DATA\DEC2701\30602.D Vial: 30 Acq On : 28 Dec 2001 6:18 pm Operator: 209 GALOS Sample : GC/MS SCAN 12/17 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 9 1,1,1,5,7,7,7-Heptamethyl-3,3- Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. — 30.25 0.79 ug/1 252021 Chrysene-dl2 33.02

■Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 1,1,1,5,7,7,7-Heptamethy1-3,3-bis(t 444 C13H40O5Si6 038147-00-1 33 2 Benzoic acid, 2,4-bis[(trimethylsil 370 C16H30O4Si3 010586-16-0 12 3 Trisiloxane, 1,1,1,5,5,5-hexamethyl 384 C12H3604Si5 003555-47-3 10 4 3-Isoprop/xy-l,1,1,7,7,7-hexamethyl 576 C18H5207Si7 071579-69-6 10 Abundance Scan 2745 (30.248 mln): 30602.D (-) m/z 72.95 100.00%

1 73

5000 147 221 T-r-n-j-r-r

Onipeurumpi 96spauanutip* A 45 117 , 249 201 327 375 401 429 ‘ ‘911191,4.4 nIpmm m/z 147.00 30.00 30.20 30.40 30.60 36.92% 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #56714:1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy)t 73

147 5000 267 TT —7 ■ i 1 ■ • • i 1 ‘ 355 429 30.00 30.20 30.40 30.60 45 207 m/z 221.05 20.35% *‘*AA‘++A++AAL‘‘/*+* p tmpmom TmmmpanmpPmpmn) m/z-> 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #73975; Benzoic acid, 2.4-bis[(trimethylsilyl)oxy]-. trimet 73 jaannanep 30.00 30.20 30.40 30.60 T-r-p-r

5000 355 m/z 281.00 13.32% 45 133 193 223 281 | TTrtTp+rTytTTTyTTTTj- TmpTPTTDTTTTTTTTTTT™ ।....!.... । ....p...(.1.. । miz-> 40 60 80 100120140160180200220240260280300320340360380400420 Abundance #52459: Trisiloxane, 1,1,1,5,5.5-hexamethyl-3,3-bis[(trimet . ■ I . 1 . . ( . . ' . I . I I I 73 147 30.00 30.20 30.40 30.60 281 m/z 355.05 13.01% 5000

207 369 249 . 338 [ \ ..|....)../. J..,.!....!.... | .T....... |.... |.T.. | Tp .|.... J....|....(. A.| m/z—> 40 60 80 100120140160180200220240260280300320340360380400420 30.00 30.20 30.40 30.60

30602.D GCMS0103.M Thu Jan 10 15:45:41 2002 Page 9

NYC-WTC_000017261

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NYC-WTC_000017171

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