GCMS analysis results for sample AE10815, May 2002

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Gas chromatography-mass spectrometry report for sample AE10815 showing detection of unknown compounds and surrogate recovery.

NYC-WTC_000046094–000046111

Folder label: “GCMS X 5/7/02 A 5/15/02”

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NYC 9/11 Public Portal Document

'Data File C:\MSDCHEM\1\DATA\051402\10815.D Vial : 25 Acq On 15 May 2002 9:55 am Operator: Mclean Sample 5/7 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 5 Cyclotetrasiloxane, octamet.. Concentration Rank 8

R.T. EstConc Area Relative to ISTD R.T.

9.25 0.23 ug/L 241472 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Cyclotetrasiloxane, octamethyl- 296 C8H24O4Si4 000556-67-2 83 2 Cyclotetrasiloxane, octamethyl- 296 C8H24O4S14 000556-67-2 64 3 7H-Dibenzo[b,g]carbazole, 7-methyl- 281 C21H15N 003557-49-1 53 4 Cyclotetrasiloxane, octamethyl- 296 C8H24O4Si4 000556-67-2 50 Abundance Scan 1051 (9.254 min): 10815.D (-1045) (-) m/z 281.00 100.00% 201

5000 s 73 133 1932 249 265 9.00 9.20 9.40 9.60 0 । । । । । । । > 36 51 | THT TTT V7 il ।1 ■111■'111''1 * । ‘ 2?7 .. I ' I '11 * m/z 282.00 28.76% m/z->____ 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #128142: Cyclotetrasiloxane, octamethyl- 281

5000 9.00 9.20 9.40 9.60 m/z 283.10 16.99% 25 51 73 g/ 103 119133147 163177 123207221 235249 265 |. 299 0 1 1 1 1 ' ' 1 1' 1 1 I ' 1 1 i - rdri i i । । 'r r i i "i i-1 "i 1"1‘ । । ।'r i i 11 i r । ttnn । i 11 । > I । । i । । । m/z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #97367: Cyclotetrasiloxane, octamethyl- 281

9.00 9.20 9.40 9.60 5000 m/z 133.10 12.16%

15 29 45 59 73 96 119133147 163177191 21221235249 265 I, 295 0 I I I I I‘l “ITmprr I I '[' I I r rrri I “rt’r t “I I1 I 11 I I'I I ITT* l l"l rrnnTs I I I I I'l I I I I I I 10 I I I T-r-n-p-r m/z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #97365: 7H-Dibenzo[b,g]carbazole, 7-methyl- ‘ I1l 1 ‘ 281 9.00 9.20 9.40 9.60 m/z 249.00 11.01%

5000

266 39 63 86 100 119133147 163 187 213 237 252 | 1 0—T m/z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 9.00 9.20 9.40 9.60

10815.D 050102.M Thu May 16 14:17:32 2002 Page 9

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