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GCMS analysis results, sample AE07972, April 18, 2002

Machine-extracted title · confidence 80%

Gas chromatography-mass spectrometry analysis of sample AE07972 documenting other unknown compounds and a 2,4-DDD surrogate recovery value of 76.

NYC-WTC_000047535–000047550

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

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NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\MSDCHEM\l\DATA\020415\07972.D Vial: 12 Acq On : 15 Apr 2002 7:47 pm Operator: Nefliu Sample : sample 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 5 N-Ethylformamide Concentration Rank 2

R.T. EstConc Area Relative to ISTD R.T. 5.97 0.52 ug/L 417800 1,4-Dichlorobenzene-d4 9.99

Hit# of- 5 Tentative ID MW MolForm CAS# Qual

1 N-Ethylformamide 73 C3H7NO 000627-45-2 9 2 1,3-Dioxolane, 2-(1-bromoethyl)- 180 C5H9BrO2 005267-73-2 9 3 Acetic acid, 3 - [ 1,3]dioxolan-2-y.. . 174 C8H14O4 1000186-02-3 9 4 Pentanol, 5-amino- 103 C5H13NO 002508-29-4 7 Abundance Scan 492 (5 970 min) 07972 D (-487) (-) m/ z 73.30 100.00% 73

5000 43

55 87 103 5 60 ' 5.80 6.00 6.20 6.40 0- ’ i" " i ’" ’ i' ” ' i' U ■ i' ■ ±1 r"'i"" i 'I m/z 43.30 26.22% n/z-> 10 20 . 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 Abundance #857 N-Ethylformamide 30 73

5000 44 58 5.60 5 80 N 6 00 **uu 6 20 6.40 m/ z 41.30 10.10% 18 0- - TT r ' ■' r ■ ■' r " 1 r ■' ■ i111' r ■ ■ ■ i ■ ■ ■ ■ i ■'r ■ r '' ■ i n/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 Abundance #25448: 1,3-Dioxolane, 2-(1-bromoethyl)- 73 — 5 60 5 80 6 00 6.20 6.40 5000 m/ z 45.30 9.47% 45

27 , 57 n/z-> 0- 4 1,11... I Cuu-T—upmgT 179 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 89 99 107 121 135 -r-rp-

Abundance #25344 Acetic acid, 3-[1.3]dioxolan-2-ylpropyl ester 73 5 60 5 80 6.00 6 20 6.40 m/z 71.30 6.97%

5000

43

n/z-> 0- 11111111' 10 20 27

30 11 1′1 111 40 501 !55

60 , 70 87 ■1 ph 113 131 TUUIETTTUIT 80 90 100 110 120 130 140 150 160 170 180 174 I'1'' I J... . 5 60 5 80 6 00 6.20 6.40

07972.D 041202SCAN.M Tue Apr 16 13:42:45 2002 Page 8

NYC-WTC_000047546

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NYC-WTC_000047546Source: NYC Law Department, mirrored locally

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