GCMS blank analysis results, May 22, 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\1\DATA\052102\LB.D Vial: 10 Acq On 21 May 2002 8:40 pm Operator: Mclean Sample 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 16 Cyclononasiloxane, octadeca... Concentration Rank 4

R.T. EstConc Area Relative to ISTD R.T. 34.33 1.22 ug/L 947900 Perylene-dl2 34.67 Hit# of 5 Tentative ID MW MolForm CAS# Q 1 Cyclononasiloxane, octadecamethyl- 666 C18H5409Si9 000556-71-8 91 2 l,l,l,5,7,7,7-Heptamethyl-3,3-bi... 444 C13H40O5Si6 038147-00-1 58 3 Mercaptoacetic acid, bis(trimeth... 236 C8H20O2SSi2 006398-62-5 32 4 3,6-Dioxa-2,4,5,7-tetrasilaoctan... 294 C10H3002Si4 004342-25-0/32 Abundance Scan 5318 (34.326 min): LB.D (-5310) (-) m/z 73.10 100/00% 73 147 221

5000 —_ ■■ ■ r i f _ 281 355 429 191 34.00 34.20 34.40 34.60 0 117 - —H —25L ■ ■ i ■ ■r ■ i' • •r i'1 ■1 i ■ ■r ■ i ■1 ■11' ■ ■ ■ i ■ ■ ■11'11111' m/z 147.10 72.06% m/z-> 0 50 100 150 200 250 300 350 400 450 500 550 600 650 Abundance #115158: Cyclononasiloxane, octadecamethy- 73 147 221 429

355 5000 281 34.00 34.20 34.40 34.60 m/z 221.10 69.77% 475 .. 651 n/z-> 0- i ■ ■ ■ ‘ i ’11111' ‘1 0 50 1 ' 11 ■ 1 100 150 200 250 300 350 400- 450 500 550 600 650 ——

Abundance #26950:1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy)... 73 .A 147 34.00 34.20 34.40 34.60 5000 267 m/z 281.00 34.08% 355 429 207

0- 1'11 ■ i ■1 11 11 '' '11' l' '' i' TIT i * • • ■ i i ■ ■ ■ ■ i ■ ■ ■ ■ i ■1 ■ ■ 11'1 ' 111 . n. n. _ — miz-> 0 50 100 150 200 250 300 350 400 450 500 550 6(X) 650 Abundance #26922: Mercaptoacetic acid, bis(trimethylsily)- 73 34.00 34.20 34.40 34.60 147 m/z 355.00 29.95% 5000 221

n/z-> 0 +13 4. 0 50 , 104 ‘1 M 177 . ................................ ■ n‘I■r.1।।।।■11। . 1 .. j 100 150 200 250 300 350 400 450 500 550 600 650 । 1 1 1 1 । । । 0m ----- 34.00 34.20 34.40 34.60

LB.D 052202.M Wed May 22 12:03:24 2002 Page 19

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