GCMS blank analysis results, June 11 2002

NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C:\MSDCHEM\l\DATA\0610022\LB.D Vial: 7 Acq On : 10 Jun 2002 3:54 pm Operator: Sample : gc/ms scan 6/7 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\l\METHQDS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 16 Methylene Chloride Concentration Rank 17 R.T. EstConc Area Relative to ISTD R.T.

4.98 0.35 ug/L 262572 1,4 -dichlorobenzene-d4 9.89

Hit# of 5 Tentative ID MW MolForm CAS# Qua 1 Methylene Chloride 84 CH2C12 000075-09-2/9 2 l-Buten-3-yne, 2-chloro- 86 C4H3C1 017712-36-6 2 3 Imidazol, 4-fluoro- 86 C3H3FN2 030086-17-0 2 4 Methylene Chloride 84 CH2C12 000075-09-2 2 Abundance Scan 323 (4.977 min): LB.D (-321) (-) m/z 49.10 100.00% 49 86

5000 42 82 35 38 460 4.80 5.00 5.20 5.40

niz-> ol ■ ■ i" " i" ■ ■ i “ ■ ■ i1 ‘ ■ i ■ ■ ■ ■ i ■ ■ 5 I’ f ' i“■ 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 l m/z 86.00 75.65% Abundance #111040: Methylene Chloride 49 84

5000 4 60 4.80 5.00 5.20 5.40 35 m/z 47.00 52.47% 88

mfe-> 14 2528 32 384 0 -PH TIPTH 241— +2 70 HTmm 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ■ i ■" ■ i ■ • “ i • ■ ■ ■ I ■1 ■ ■ i ■ ■ “ i ■ •1

Abundance #34744: 1-Buten-3-yne, 2-chloro- 51 85

4.60 4.80 5.00 5.20 5.40 5000 m/z 42.10 31.90%

01 ’’UE"’!’"1’EET’EE1931m0’1141 9— T’I’T —mmmmtt 60 WWveHhMwW/ m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #34862: Imidazol, 4-fluoro- 85 4.60 4.80 5.00 5.20 5.40 m/z 51.05 30.34% 5000

59 0 ■ ■ i■ ■ ■ ‘'■1 ■ ।"'■ ।■'■■ ।■ ■"i"'■ ।■ ■"।■ •"।""।""।"' ।■ ■ । ‘ 1111 .yi i.. 11.., ।... . । -mop /z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.60 4.80 5.00 5.20 5.40

LB.D 060302.M Tue Jun 11 08:26:24 2002 Page 19

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