GCMS analysis results for unknown compounds, June 2002

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Laboratory report documenting GCMS analysis of sample AE12736 with surrogate recovery data and identification of unknown compounds.

NYC-WTC_000015224–000015252

Folder label: “GCMS X 6/3/02 A 6/7/02”

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NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\l\DATA\060702\12737.D Vial: 13 Acq On 7 Jun 2002 6:21 pm Operator: Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : ~C : \DATABASE\NIST98 . L

Peak Number 13 Cyclotetrasiloxane, octamet... Concentration Rank 15 R.T. EstConc Area Relative to ISTD R.T. 9.22 0.49 ug/L 270555 1,4-dichlorobenzene-d4 9.89 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Cyclotetrasiloxane, octamethyl- 296 C8H24O4Si4 000556-67-2 78 , 2 Cyclotetrasiloxane, octamethyl- 296 C8H24O4Si4 000556-67-2 78s 3 Cyclotetrasiloxane, octamethyl- 296 C8H24O4Si4 000556-67-2 59 4 Benzoic acid, 4-methyl-2-trimeth... 296 C14H2403Si2 1000153-59-3 53 Abundance Scan 1044 (9.213 min): 12737.D (-1034) (-) m/z 281.00 100.00% 281

5000 ... . . 57 73 22 133 191 207 249 265 8.80 9.00 9.20 9.40 9.60 ... 41, 88 ....... . I,... I 0 ‘I‘‘‘‘1411617‘/‘‘A . . . . । M । , .‘I | I j i 1 | । i i । । । T‘ | i"i J I | । I । 1 | । 11 ! | l"l i I m/z 282.00 29.70% m/z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #97367: Cyclotetrasiloxane, octamethyl- 281

5000 8.80 9.00 9.20 9.40 9.60 m/z 283.00 14.40% 122 07 15 29 45 59 73 96 119 |, 147 163177191 L 221235249 265 0 ’14*——00m*im//d I"1'1 1 ‘“1111' | *'T ‘ । j i’j । i I i । t i । +295— miz-> 0 20 40 60 80 100 120 140 160 180.200 220 240 260 280 300 Abundance #128142: Cyclotetrasiloxane, octamethyl- 281 — 8.80 9.00 9.20 9.40 9.60 5000 m/z 190.90 10.46% • I 25 51 73 87 103119133147 163177 193207221 235249 265 0 ■i‘ ■ I ■■ ■ ■ i' ■ ■11" ■ ■ i" ■1 u 1 ■i ′ i11'1 !t 1 ‘'"11 i ” ' * i ■1 ‘i i ■1 r' i *1 ■1 +299, n/z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #128141: Cyclotetrasiloxane, octamethyl- 281 8.80 9.00 9.20 9.40 9.60 m/z 133.20 9.79% 5000

265 45 59 73 133 1— 193207 0- i ■ i “ ■ ■ i ■ ■ “ i ■' " i " ■11 ■ ■ “ 1111111111111111' -44— 235 L 4mp n/z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 8.80 9.00 9.20 9.40 9.60

12737.D 060302.M Mon Jun 10 11:24:17 2002 Page 16

NYC-WTC_000015244

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GCMS analysis results for unknown compounds, June 2002 · Box DEP Box 15

NYC-WTC_000015282

Laboratory report documenting GCMS analysis of sample AE12738 with surrogate recovery data and identification of unknown compounds.

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