GCMS analysis results for unknown compounds, June 2002

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Laboratory report documenting GCMS analysis of sample AE12739 with surrogate recovery data and identification of unknown compounds.

NYC-WTC_000015311–000015339

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

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NYC 9/11 Public Portal Document uDLary sedrcn compouru Keporu

Data File C:\MSDCHEM\l\DATA\060702\12742.D Vial: 16 Acq On 7 Jun 2002 8:47 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 14 Cyclotetrasiloxane, octamet.. Concentration Rank 19 R.T. EstConc Area Relative to ISTD R.T.

9.21 0.34 ug/L 225962 1,4-dichlorob'enzene-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 72 3 Cyclotetrasiloxane, octamethyl- 296 C8H24O4Si4 000556-67-2 56 4 5H-Naphtho[2,3-c]carbazole, 5-me... 281 C21H15N 100025-44-3 42 Abundance Scan 1044 (9.213 min): 12742.D (-1039) (-) m/z 281.00 100.00% 281

5000 .......... M. 57 5 133 191 207 249 265 8,80 9.00 9.20 9.40 9.60

n/z-> 0- —PPP 41 0 20 40 60 4473,8. , I II, il 80 100 120 140 160 180 200 220 240 260 280 300 I I m/z 282.00 30.33% Abundance #128142: Cyclotetrasiloxane, octamethyl- 281

50001 8.80 9.00 9.20 9.40 9.60 m/z 283.00 16.33% 25 51 73 87 103 119133147 163177 193207221 235249 265 +299 0 ■i‘ ' i • ■ ■ ■ i ■ ■ " i ■1 104 **11ansm 1*1**/*** ,"|. Ti |TT .. 11,j. ,"'i, । Tra 1 f /z-> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Abundance #97367: Cyclotetrasiloxane, octamethyl- 281

8.80 9.00 9.20 9.40 9.60 5000 m/z 57.20 13.39%

15 29 45 59 73 96 119123147 163177191 227221 235249 265 0^11’00121—1—000———— +295— niz-> Abundance 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 #128141: Cyclotetrasiloxane, octamethyl- 281 _AA_ 8.80 9.00 9.20 9.40 9.60 m/z 191.00 9.63%

5000

73 265 133 177 193207 0-T 45 59 | ■ i ■ ■ ■ ■ i ■ I ■ ■ ■ ■ i ■ ■ ■ ■ i - i ■ ■235 I ■ ■ i ■ ■'111111 r Pp /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

12742.D 060302.M Mon Jun 10 11:26:47 2002 Page 17

NYC-WTC_000015332

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NYC-WTC_000015332Source: NYC Law Department, mirrored locally

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

NYC-WTC_000015253

Laboratory report documenting GCMS analysis of sample AE12737 with surrogate recovery data and identification of unknown compounds.

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