GCMS analysis results, sample AE12288, June 2002

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Data File : C:\MSDCHEM\1\DATA\052902\12288.D Vial: 7 Acq On : 29 May 2002 2:58 pm Operator: McLean Sample : gc/ms scan 5/24 fb Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integfator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 7 Methylene Chloride Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. 4.23 0.62 ug/L 443198 1,4 -Dichlorob'enzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 50 2 Methylene Chloride 84 CH2C12 000075-09-2 9 3 Methylene Chloride 84 CH2C12 000075-09-29 4 Methylene Chloride 84 CH2C12 000075-98-2 7 Abundance Scan 195 (4.225 min): 12288.D (-193) (-) m/z 49.10 100.00% 49 ww 84 5000 43 88 58 3.80 4.00 4.20 4.40 4.60

miz-> 0! 5 36 | TUITINTT!LWTTDTI]ummmmmmug mm ■ •■ i■ ■ ■ 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 m/z 84.00 57.32% Abundance #111039: Methylene Chloride 49 84 5000 i ■ 1 ■ ' i ■ ■ ■ ■ i ■ ■ ■ • i ■ • ■ ■ i ■ ■ ‘ 3.80 4.00 4.20 4.40 4.60 m/z 43.10 42.05% 2831 3538 43 ,52n—57 67 71 77 . 88 tupunBBgp 01 '' i1''11111'111 “ 11'''I “''I'111111111111' i' hapansagna niz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #12327: Methylene Chloride 49 84 **I***I*IIIIII4* 3.80 4.00 4.20 4.40 4.60 5000 m/z 51.05 41.43%

88 14 18 24 2831 353841 J 2________ 70______ , — Ot —————————————————— ftWl-TTTTyrTTTp-rT^^^ miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111040: Methylene Chloride i 11 1 ■ i ■ • ■ ■ i ■ ■1 ‘ i 1 • ■ • । ‘ 49 3.80 4.00 4.20 4.40 4.60 84 m/z 48.00 36.17% 5000

35 "MM.hAAA miz-> 14 2528 32 ,38441 o 1’211 vttt/ucusy | 1 I I | I I I 1 11 1 | I [ If! i | Hp 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 52 70 88 + 3.80 4.00 4.20 440 4.60

12288.D 052202.M Mon Jun 03 09:37:05 2002 Page 10

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