GCMS analysis results for sample AE12473, June 2002

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Data File : C:\MSDCHEM\l\DATA\052802\12473.D Vial: 11 Acq On : 28 May 2002 10:26 pm Operator: McLean Sample : 5/24 ad Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L Peak Number 9 Methylene Chloride Concentration Rank 4 R.T. EstConc Area Relative to ISTD R.T. 4.49 2.35 ug/L 1445280 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Methylene Chloride 84 CH2C12 000075-09-2 2 2 Ethyl Chloride 64 C2H5C1 000075-00-3/2 3 Acetic acid, chloro-, ethyl ester 122 C4H7C1O2 000105-39-5 2 4 Ethanol, 1-ethoxy-2,2,2-trifluoro- 144 C4H7F3O2 000433-27-2 1 Abundance Scan 241 (4.495 min): 12473.D (-239) (-) m/z 49.10 100.00% 49

5000

41

A .......... ........ .. 88 4.20 4.40 4.60 4.80

"Mmrw... 0 m/z 47.10 63.61% n/z->______ 10 2030405060 70 8090 100 110 120 130 Abundance #111039: Methylene Chloride 49 84 50001 ‘ ' ' I ‘ ‘ ‘ ‘ I ' ‘ ‘ 1 I ' ‘ ‘ ' I ' ' ' ■ 4.20 4,40 4.60 4.80 m/z 50.00 23.39%

/z-> 01 111028,35.43. .57 71 77 20 30 40 50 60 70 80 I1. * rq 12/11/1 +TPT 90 100 110 120 130 Abundance #107943: Ethyl Chloride 23

4.20 4.40 4.60 4.80 64 5000 m/z 41.10 21.04% 49 35 15 I ----- n/z-> O' r 10 lp 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #108005: Acetic acid, chloro-, ethyl ester 29 4.20 4.40 4.60 4.80 ' m/z 51.10 15.22% * 5000 77 42 49 14 0 — +35—401,1.1,159 65 | 1114 . . ,’I l l , , I . ■ 111 ■ । 88 94 । 107 122 . 11 , >', । > । । 11 । । । i n/z-> 10 20 30 50 60 70 80 90 100 110 120 130 4.20’ 4.40 4.60 4.80

12473.D 052202.M Thu May 30 10:42:25 2002 Page 11

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