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 20 Cyclononasiloxane, octadeca... Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. 39.27 0.88 ug/L 687347 Perylene-dl2 34.67 Hit# of 5 Tentative ID MW MolForm CAS# Qu.

1 Cyclononasiloxane, octadecamethyl- 666 C18H5409Si9 000556-71-8 87 2 Mercaptoacetic acid, bis(trimeth... 236 C8H20O2SSi2 006398-62-5 38 3 3,6-Dioxa-2,4,5,7-tetrasilaoctan... 294 C10H3002Si4 004342-25-0 32 4 2,6-Dimethyl-3,4-bis(trimethylsi... 311 C15H29NO2Si2 1000079-52-1/22

_A Abundance Scan 6159 (39.267 min): LB.D (-6143) (-) 73 147 221

5000 281 355 429 191 40 0- It rer .. /....... 503............ TI i iTl । . > । r j ■ I i । j ■ i I । । > i ■ > । > < • । | « : J । । i ■ > । ] । । m/z 39.00 39.20 39.40 39.60 73.10 93.87% miz-> 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 Mvur" 39.00 39.20 39.40 39.60 m/z 221.10 85.66% 475

miz-> o-1 0 *112*g** ■ ■ । f l i । • 4 । 50 100 150 200 250 300 350 400- 450 500 550 600 650 651 — H+gg Abundance #26922: Mercaptoacetic acid, bis(trimethylsilyl)- 73 147 T T —h 39.00 39.20 39,40 39.60 5000 m/z 281.00 45.49% 221

miz-> 0- 1348. 0 — 50 100 104 77.. 150 200 250 300 350 400 450 500 550 600 650 Abundance #87890:3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7... 147 221 39.00 39.20 39,40 39.60 m/z 207.00 39.76% 73 5000 wuppYparwno 191 279 28 0 Amr — 250 300 ‘35o' ‘400' 450 500 550 600 650 /z-> 0 50 100 150 200 39.00 39.20 39.40 39.60

LB.D 052202.M Wed May 22 12:03:25 2002 Page 23

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