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GCMS sample analysis results, AE11903, June 3, 2002

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Laboratory report presenting analytical results for target compounds and surrogate recovery data for water sample AE11903.

NYC-WTC_000012908–000012936

Folder label: “GCMS X 5-21-02 A 5-22-02

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NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\DATA\052202\11903.D Vial: 10 Acq On : 22 May 2002 9:09 pm Operator: Mclean Sample : 5/21 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) 1

Title : 508 Modified GC/MS scan "6 Library- : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 20 3,6-Dioxa-2,4,5,7-tetrasila... Concentration Rank 16 R.T. EstConc Area Relative to ISTD R.T.

39.25 0.53 ug/L 302390 Perylene-d12 34.66

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 3,6-Dioxa-2,4,5,7-tetrasilaoctan... 294 C10H3002Si4 004342-25-0 38 2 2,6-Dimethyl-3,4-bis(trimethylsi... 311 C15H29NO2S12 1000079-52-1/28 3 Trisiloxane, octamethyl- 236 C8H2402Si3 000107-51-717 4 Tris(trimethylsilyl)borate 278 C9H27BO3Si3 004325-85-3 17 Abundance Scan 6156 (39.249 min): 11903.D (-6145) (-) m/z 221.10 0.00% 73 221 147

5000 t 281 355 40 191 39.00 39.20 39.40 39.60 -PH pap 1 . p > 1 !■] I 1L | J . . |"n I 1 | . 0 m/z 73.05 86.57% miz-> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #87890:3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7... 147 22!1

73 5000 39.00 39.20 39.40 39.60 191 m/z 147.00 72.81% 117 279 0 “ ■ i ■1 • ■ i ■ ■ “'t ■ 111111101 . 175 , L 28 45 245263.295................. 111 "111 t1 ‘ 1*44314 1"4t‘*. 111,, ‘144 ' T" ‘' i “ ■■ i“ “ I" “ 1 “ mlz~> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #87845:2,6-Dimethyl-3,4-bis(trimethylsilyloxymethyi)pyridine 2211 73 1 ■ i ■ • 39.00 39.20 39.40 39.60 5000 147 m/z 281.00 33.31%

178 27 4 .117 131,.. 14 45 04 266 296 1'11110111—00710231103121927 miz-> 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 Abundance #126925: Trisiloxane, octamethyl- 73 221 39.00 39.20 39,40 39.60 m/z 207.00 31.58% 5000

45 103 133 -189205

/z—> 0 “......... mm 'l a I 1111 1, L 11 • i “ ■ ■ i" ■' i ■ 11 “11'1" 1 • 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 1 “ ■11 । "1“■ ■ । । । ' 39.00 39.20 3940 39.60

11903.D 052202.M Tue May,28 12:08:01 2002 Page 23

NYC-WTC_000012935

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