GCMS blank analysis results, sample AE10809, May 2002

Machine-extracted title · confidence 80%

Gas chromatography-mass spectrometry blank analysis conducted May 17, 2002 testing for semivolatile organic compounds with all results below method reporting limits.

NYC-WTC_000045936–000045963

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\0507LB.D Vial: 16 Acq On : 15 May 2002 2 :34 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 17 1,1,1,5,7,7,7-Heptamethyl-3... Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T. 36.45 2.63 ug/L 1197160 Perylene-dl2 34.70

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 1,1,1,5,7,7,7 -Heptamethyl-3,3-bi... 444 C13H40O5Si6 038147-00-1 40 2 3,6-Dioxa-2,4,5,7-tetrasilaoctan... 294 C10H3002Si4 004342-25-0 - 3 Pentasiloxane, dodecamethyl- 384 C12H3604Si5 000141-63-9/ 22 4 .alpha.-Tetralone, 2-amino-5,6-d... 221 C12H15NO3 1000125- -7 22 Abundance Scan 5679 (36.447 min): 0507LB.D (-5657) (-) m/z 221.10 100.00% 73 147 221

5000 281 355 I I I I I I I I I I I I I 429 1 i ‘ 1 36.20 36.40 36.60 36.80 01 44 11 96, I, , 'I ' ' ' ' I ' 191 , Il I 1 r | " ll । li ll ----- 401 I 503 m/z 73.10 89.92% m/z-> 50 100 150 200 250 300 350 400 450 500 Abundance #26950: 1,1,1,5,7,7,7-Heptamethyl-3,3-bis(trimethylsiloxy).. 73

147 5000 267 355 429 36.20 36.40 36.60 36.80 45 207 m/z 147.10 87.40%

m/z-> 0-

Abundance

5000 t .. 1.11,!,,,, .... 50

73 100 150 200 250 300 350 400 #87890: 3,6-Dioxa-2,4,5,7-tetrasilaoctane, 2,2,4,4,5,5,7,7... 147 Z!1 450 1 1 ' 500

_A_ ——PPAPAAMAAAAA 36.20 36.40 36.60 36.80 m/z 207.00 47.13%

117 191 279 wt/“ppt 01 45 1' 1 " ■ _L 1 ■ i 1 ‘ ' 1 1 1 249. L ................... ' i ' 1 T 1 i 1 ' 1 1 i 1 ■ ' 1 i ■ 1 ' ' i 1 1 ' 1 i 1 m/z—> 50 100 150 200 250 300 350 400 450 500 Abundance #115143: Pentasiloxane, dodecamethyl- ' ' i ' 1 1 ■ ■ 73 147 281 36.20 36.40 36.60 36.80 m/z 355.00 38.56%

5000 369 207 45 0 phri '' phi , 177.1,219l, . .. . MM’ 1 I ' 1 1 1 I ' ' 1 1 1 1 1 ' 1 I ' 1 117 ' I 1 ■ 1 r i 1 1 1 1 f 1 1 "' i r T 1" i ' ' 400 ' 450 ' 500 m/z-> 50 100 150 200 250 300 350 36.20 36.40 36.60 36.80

0507LB.D 050102.M Thu May 16 12:36:02 2002 Page 20

NYC-WTC_000045959

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