GCMS method file details for April 3-5, 2002

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Technical documentation listing GC/MS method parameters and internal standard data for analysis performed in early April 2002.

NYC-WTC_000047452–000047462

Folder label: “GCMS X 4/3/02 A 4/5/02”

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NYC 9/11 Public Portal Document

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Data File C:\MSDCHEM\l\DATA\020404\07767.D Vial: 21 Acq On 5 Apr 2002 1:34 am Operator: Nefliu Sample sample Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020403.M (Chemstation Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1

Peak Number 3 Guanidine, methyl- Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T. 5.59 0.24 ug/1 167050 1,4-Dichlorobenzene-d4 10.66

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Guanidine, methyl- 73 C2H7N3 000471-29-4 2 2 N-Ethylformamide 73 C3H7NO 000627-45-2 2 3 Acetamide, N-methyl- 73 C3H7NO 000079-16-3 2 4 Guanidine, methyl- 73 C2H7N3 000471-29-4 2 Abundance Scan 428 (5.594 min): 07767.D (-419) (-) m/ z 43.10 100.00% 43

5000 73 40 1 I 1 1 ■ ■ । । ■ ■ ■ । ■ ■ ■ ■ । । ■ ■ । । । ■ 49 5.20 5.40 5.60 5.80 6.00 84 01 ■ । ■' ■ ■ । " 111 ■' 11 > " ■ । ‘I‘ — 11 ‘■ 11 ■ ■' ।' 11 -1 1111 " 11 " 11 । " 111''111 II’ m/ z 73.10 44.24% m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #759: Guanidine, methyl- 33 43 73

5000 18 5.20 5.40 5.60 5.80 6.00 57 m/ Z 40.10 26.65% 15 27 . 11 11111 P ]■ i- 0 r r 111 r 1 11" " I' .4 ■ 11 - - ■ ■ 11 Po 111' " i' " 111 " 11 " m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #857: N-Ethylformamide 33 73 5.20 5.40 5.60 5.80 6.00 5000 m/ z 49.00 6.47%

0 — 1518 PTTpT 54 27

3841 4—7 44 58 VMWnadowl TIT 11''111' ' 11' 11■■■■।■11 ■■' । ■ । m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #109186: Acetamide, N-methyl- 30 43 5.20 5.40 5.60 5.80 6.00 73 m/z 84.00 2.62% 5000 58 MAMMHlaAv/vYYMswypuiAps, 27 3336 40| ,46 5154 64 0 111" 11 '■11111111111111 tn | J i r r | I I I I I I I I I ! I l 11 11 ‘ ।' ■ । ■ I'11 ■ I ■' 1UTTT ■ । ' ■ ■ ■ ।■1।■■■।। । < । । । । । m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 5.20 5.40 5.60 5.80 600

07767 .D SCAN020403.M Fri Apr 05 14:31:49 2002 Page 5

NYC-WTC_000047460

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