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GCMS blank analysis results for sample AE07972, April 2002

Machine-extracted title · confidence 100%

Laboratory report showing blank analysis results for sample AE07972 conducted between April 4 and April 15, 2002.

NYC-WTC_000047515–000047524

Folder label: “GCMS X 4/4/02 A 4/15/02

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Scanned page image, NYC-WTC_000047521
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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File C:\MSDCHEM\l\DATA\020415\0404LB.D Vial : 8 Acq On 15 Apr 2002 4:29 pm Operator: Nefliu Sample 04/04 lab blk Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method C:\MSDCHEM\1\METHODS\041202SCAN.M (Chemstation Integrator) Title 508 Modified GC/MS scan Library C:\DATABASE\NIST98.L ********************************************************************* Peak Number 1 Acetic acid, 3- [1,3]dioxola. .. Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.97 0.54 ug/L 410466 1,4-Dichlorobenzene-d4 9.99 Hit# Of 5 Tentative ID MW MolForm CAS# Qual 1 Acetic acid, 3- [1,3]dioxolan-2-y... 174 C8H14O4 1000186-02-3 28 2 Silane, tetramethyl- 88 C4H12Si 000075-76-3 12 3 Silane, tetramethyl- 88 C4H12S1 000075-76-3 9 4 N-Ethylformamide 73 C3H7NO 000627-45-2 9 Abundance Scan 491 (5 964 min) 0404LB D (-486) (-) m/ z 73.30 100.00% 73

5000 43 1 i ■ ' ■ ■ i ■ ■

55 5.60 5.80 6 00 6.20 6.40

n/z-> 0- 1" ।" "i i ■1" । +4 1 87 103 r " 11" " i' "" i11 i' H11 r' " i1" ' i " " i'1" r 111 r 1" r " 11" " i ■ ■ 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 m/ z 43.30 24.72% Abundance #25344: Acetic acid, 3-[1,3]dioxolan-2-ylpropyl ester 73

5000 . AA, । 5.60 5 80 6.00 6.20 6.40 43 m/ z 41.30 11.52%

n/z-> 0- TITTTT 0 27 R +TT 87 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 113 131 174 ' i' ‘ " r " ■ r " ' r " ' r1" I'1 Abundance #25349 Silane, tetramethyl- 73 - 5.60 5 80 6 20 6.40 5000 m/ z 45.30 10.31%

no 43

0- 112 .. 15.. 2.. 11 55.65 I.... 88................................................... 111" i1111111 FT’1111' 111"1 ’ i" " r' ’ . । ... । | rr. . । ’T’’ I’l । ।i i । 11 । i । 11 < । । । । n/z-> 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 Abundance #114850 Silane, tetramethy- 73 5 60 5.80 6.00 6.20 6.40 m/z 71.30 6.65% 5000

45 0 29 37 IITTTTTTT 59 MU 1 '1....... 1....... । ■'1 ■ । 1 r''11" ■ ‘ i /z-> 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 5.60 5 80 6.00 6 20 6.40

0404LB.D 041202SCAN.M Tue Apr 16 11:54:18 2002 Page 4

NYC-WTC_000047521

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NYC-WTC_000047521Source: NYC Law Department, mirrored locally

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