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GCMS blank analysis results, sample AE11799, May 2002

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Gas chromatography-mass spectrometry blank analysis for sample AE11799 showing results below method reporting limits for semivolatile organic compounds, dated May 28, 2002.

NYC-WTC_000012751–000012778

Folder label: “GCMS X 5-21-02 A 5-22-02

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052202\521LB.D Vial: 3 Acq On : 22 May 2002 3:27 pm Operator: Mclean Sample : 5/21 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 14 3,6-Dioxa-2,4,5,7-tetrasila... Concentration Rank 14 R.T. EstConc Area Relative to ISTD R.T. 34.95 0.50 ug/L 199921 Perylene-dl2 34.66 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 3/6-Dioxa-2,4,5,7-tetrasilaoctan... 294 C10H3002Si4 004342-25-0 27 2 Trisiloxane, 1,1,1,5,5,5-hexamet... 384 C12H3604Si5 003555-47-310 3 Tris(trimethylsilyl)borate 278 C9H27BO3Si3 004325-85-3 10 4 1-Monolinoleoylglycerol trimethy. . . 498 C27H54O4Si2 054284-45-6 10 Abundance Scan 5423 (34.943 min): 521 LB.D (-5416) (-) m/ z 73.10 100.00% 73 147 221 281 356 429 5000

AAAAMMMAN MW 34.60 34.80 35.00 35.20 0 I [/ m/z 147.10 91.91% nz-> 50 100 150 200 250 300 350 400 Abundance #87890:3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7... 147 2211

5000 73

191 . Nw). 34.60 34.80 35.00 35.20 m/z 221.10 82.51% A 117 279

. all1 „ot/\ n/z-> 0- 45 ’I 50 100 150 200 L . 249, 250 1,.. 300 350 400 Abundance #26961: Trisiloxane, 1.1,1,5,5,5-hexamethyl-3,3-bis[(trime... 73 147 281 34.60 34.80 35.00 35.20 5000 m/z 281.00 72.85%

369 45 0- — 95 117 । 177 207226 249 । i ■ r । i r [At"- r ith tn ■ 310 341 i • ■ ■ ■ i ■ | r miz-> 50 100 150 200 250 300 350 400 Abundance 73 #27488: Tris(trimethylsily!)borate 221 AMMY 34.60 34.80 35.00 35.20 TT

m/z 356.00 67.10%

5000 263 45 133 175 0 ,| TI 193.1,4,444 4,. ,1 ■ ■ i ■ • ‘ ■ i • 1 • * K' m/z—> 50 100 150 200 250 300 350 400 34.60 34.80 35.00 35.20

521LB.D 052202.M Tue May 28 11:58:09 2002 Page 17

NYC-WTC_000012771

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NYC-WTC_000012771Source: NYC Law Department, mirrored locally

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