GCMS blank analysis results for May 2002

NYC 9/11 Public Portal Document —X —DW

Data File C:\MSDCHEM\1\DATA\050902\0508LB.D Vial: 4 Acq On 9 May 2002 5:43 pm Operator: Mclean Sample 5/8 kb Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 14 Cyclononasiloxane, octadeca... Concentration Rank 5 R.T. EstConc Area Relative to ISTD R.T. 35.42 1.42 ug/L 919085 Perylene-d12 34.70 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Cyclononasiloxane, octadecamethyl- 666 C18H5409Si9 000556-71-8 80 2 l,l,l,5,7,7,7-Heptamethyl-3,3-bi... 444 C13H40O5Si6 038147-00-1 45 3 Mercaptoacetic acid, bis(trimeth... 236 C8H20O2SSi2 006398-62-5 38 4 3,6-Dioxa-2,4,5,7-tetrasilaoctan... 294 C10H3002Si4 004342-25-0 38 Abundance Scan 5504 (35.418 min): 0508LB.D (-5496) (-) m/ z 73.05 100.00% 73 147 221 5000 281 355 429 0- 36 i 1 ' ' '■ i ■ ' ' ' I ' 1 ' ' 191 1325 ■ r ■ ■' i" ' । 1 1 11 । I । । ' f I ' ' .,,.,1... 593___ 35.00 35.20 35.40 35.60 35.80 m/z 147.10 75.74% m/z- > 0 50 100 150 200 250 300 350 400 450 500 550 600 650 Abundance #115158: Cyclononasiloxane, octadecamethyl- 73 147 221 429

355 5000 281 . Na ... 35.00 35.20 35.40 35.60 35.80 m/z 221.10 63.03% 475 A 01 i ■ 1 ■ ■ i 1 1 ' 1 I 1 1 -_+ I. .—P 651 n/z-> 0 50 100 150 200 250 300 350 400 450 500 550 600 650 Abundance #26950:1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy)... 73 147 35.00 35.20 35.40 35.60 35.80 5000 267 m/z 355.10 31.26% 355 429 207 I ■ < ।1'' ■ i'1 ■ L ■ ■ ■ ■ i ■1 0-P ■ i ■ ■ ■ ■ i ■ • ■ ■ i ■ ■ ■ ■ i ■ > ■ ■ i ■ ■ m/z-> 0 50 100 150 200 250 300 350 400 450 500 550 600 650 Abundance #26922: Mercaptoacetic acid, bis(trimethylsilyl)- 73 35.00 35.20 35.40 35.60 35.80 147 m/z 281.10 27.98% 5000

221 1348 104 771......... 0 T" —1— । > ^ . । । r. i । । i । । । ' । i , j m/z-> 0 50 100 150 200 250 300 350 400 450 500 550 600 650 35.00 35.20 35.40 35.60 35.80

0508LB.D 050102.M Tue May 14 10:15:01 2002 Page 17

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