GCMS analysis results for sample AD31675, Jan 2002

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Laboratory report for sample AD31675 documenting detection of unknown compounds and surrogate recovery on January 25, 2002.

NYC-WTC_000050294–000050316

Folder label: “GCMS X 1/3/02 A 1/22 - 1/23/02”

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Library Search Compound Report Data-File : C:\MSDCHEM\1\5973N\02JAN24\31675A.D Vial: 2 Acq On : 24 Jan 2002 12:31 pm Operator: Sample : 508scan; re-inj Inst : Instrumen Mise : January 24, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 3 Cyclotetrasiloxane, octamet... Concentration Rank 4 R.T. EstConc Area Relative to ISTD R.T. 9.41 0.30 ug/L 124919 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Cyclotetrasiloxane, octamethyl- ... 296 C8H24O4Si4 000556-67-2 90 2 Cyclotetrasiloxane, octamethyl- ... 296 C8H24O4Si4 000556-67-2 86 3 Cyclotetrasiloxane, octamethyl- ... 296 C8H24O4Si4 000556-67-2 83 4 Cyclotetrasiloxane, octamethyl- ... 296 C8H24O4Si4; 000556-67-2 83 Abundance Scan 529 (9.413 min): 31675A.D (-) m/z 281.10 100.00% 211

5000

9.00 9.20 9.40 9.60 9.80 "TE 73 I i ■ ■ •' I ‘ 103 133 • T‘ ■ ■ ■ i • ■ ■ ■ i '' ‘ • i • ■ 177 191 207 rt ■ ■ V. । i'1. i . । 249 265 i.. । . m i . । r. ■i • ■ i ‘ m/z 282.00 25.80% z-> 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #244219: Cyclotetrasiloxane, octamethyl- (CAS) $$ 1,1,3,3,... 281

- 5000 9.00 9.20 9.40 9.60 9.80 m/z 283.10 16.44% 249 265 73...19*33 177 193 207 h T nfe-> 40 60 80 100 120 140 160 -iso' ‘266 220 240 260 280 300 Abundance #244218: Cyclotetrasiloxane, octamethyl- (CAS) $$ 1,1,3,3,... 2811

9.00 9.20 9.40 9.60 9.80’ 5000 m/z 133.00 9.08%

73 45 1 133 164177 193297 tyfeofT48* I « I J l I • » > I I J l it I t 1 J I I t I t It J l 't* "1 235 249 25 J' J" I J I t "I I 296 I ni i p । । i । i niz-> 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #244217: Cyclotetrasiloxane, octamethyl- (CAS) $$ 1,1,3,3,... i • • ' * i ■ 1 ■ 1 i ■ ' ■ ■ i ■ • ■ • i ■ 1 2811 9.00 9.20 9.40 9.60 9.80 m/z 191.00 8.30% 5000

133 ........ 73.......... I, “l“............. I ■ ri 11 ’11111111111' ' 207 221 235 249 265 191 i' ■ ‘ ■ i1 ■111 ■ 295 -r.-j । । । । । i i । । । । »i . । ri . 1 p » । . j t i ■ • ■ ■ i ■ 1 • ■ i ■ ‘ ‘ i • • ■ ‘ i ■ • niz—> 40 60 80 100 120 140 160 180 200 220 240 260 280 300 9.00 9.20 9.40 9.60 9.80

31675A.D SCAN508.M Thu Jan 24 15:25:29 2002 Page 5

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GCMS analysis results for sample AD31674, Jan 25 2002 · Box DEP Box 28

NYC-WTC_000050276

Laboratory report documenting GCMS analysis of sample AD31674 with detection of unknown compounds and surrogate recovery.

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