GCMS blank analysis results, sample AE10809, May 2002

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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 9 Benzoic acid, 2,6-bis[(trim... Concentration Rank 11

R.T. EstConc Area Relative to ISTD R.T. 20.68 0.85 ug/L 825203 Acenapthalene-dlO 18.56

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Benzoic acid, 2,6-bis[(trimethyl... 370 C16H30O4Si3 003782-85-2 37 2 Noradrenaline tetraTMS 457 C20H43NO3Si4 068595-65-3 25 3 Benzeneethanamine, N-[ (pentaf luo . . . 563 C24H34F5NO3Si3 055429-13-5/25 4 Cyclopentasiloxane, decamethyl- 370 C10H30O5Si5 000541-02/6 25 Abundance Scan 2996 (20.682 min): 0507LB.D (-2986) (-) m/z 73.10 100.00%] 73 1 5000 147 355 221 ,....... 281 1 I I pi 11 I I I I I 1 I I I I J r I

m/z-> 45 117, 0- 1 1 i ' ' 1 'i 1 '' 1". 50 100 150 200 191 —27 1 250__ 300 350 401 —....... - 400 450 500 550 20.40 20.60 20.80 21.00 m/z 3 55.10 37.18% Abundance #27962: Benzoic acid, 2,6-bis[(trimethylsilyl)oxy]-, trime... 73 355

5000 ................... .......................... 20.40 20.60 20.80 21.00 147 267 m/z 147.00 35.01% 44 119, | 179 207 237 313 [ I I 0- ■ n 1 1 thten ri i ""11 rifin I-. i 1 1 । ।_ । t । । । । । । ■ । । । । । । । i_ । i r

m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #27959: Noradrenaline tetraTMS 73 . A,/... 20.40 20.60 20.80 21.00 5000 102 355 m/z 221.10 26.94% A 45 0 I.... 147 i । i ■ ■ ■ - । ■ 1 - ■ । ■ ■ ■ ■ । । । । 442 i ‘ "mi r ITIIITT m/z-> 50 100 150 200 250 300 350 400 450 500 550 Abundance #115316: Benzeneethanamine, N-[(pentafluorophenyl)methylen... 13 1IT 73 355 20.40 20.60 20.80 21.00 rn/z 281.00 17.53%| 5000

45 117 147 179 207 251,281 386 429 458 548 H..... 0 — ' 1 i ' ' ■' ■ । ■ 1 1 11' 1 /z-> 50 100 150 200 250 300 350 400 450 500 550 20.40 20.60 20.80 21.00

0507LB.D 050102.M Thu May 16 12:35:56 2002 Page 12

NYC-WTC_000045951

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