GCMS surrogate recovery report, sample AE12763, June 2002

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Data File : C:\MSDCHEM\l\DATA\061102\12763.D Vial: 7 Acq On : 11 Jun 2002 2:46 pm Operator: Sample : re-ext. Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 4 Methanethiol Concentration Rank 11

R.T. EstConc Area Relative to ISTD R.T.

3.87 0.88 ug/L 720425 1,4-dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methanethiol 48 CH4S 000074-93-1 9 2 Methanethiol 48 CH4S 000074-93-1 9 3 Methanethiol 48 CH4S 000074-93-1 7 4 Imidazol, 4-fluoro- 86 C3H3FN2 030086-17-0 2 Abundance 4 Scan 134 (3.867 min): 12763.D (-133) (-) m/z 47.10 100.00% 47 86 5000

43 52 37 3.60 3.80 4.00 4.20 o+mmmPTTTTTTTTTT •' i" " i m/z 49.10 93.77% miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #111010: Methanethiol 47

5000 3.60 3.80 4.00 4.20 m/ z 48.05 70.45% 15

miz-> Abundance Ot 5+?+ . ........... 1 7... . 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 #111011: Methanethiol 47 3.60 3.80 4.00 4.20 5000 m/z 86.00 64.47%

Ot .26 33 4 Thun 50 —man)mmummDT miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #12281: Methanethiol ' ' 1 1 I ■ ‘ ‘ I ‘ ‘ ‘ I ' ' ‘ ■ I ■ ‘ ' 47 3.60 3.80 4.00 4.20 m/z 85.00 28.57%

5000

33 44 , ya/MMw n/z—> 0 5 10 15 20 25 117736 14 , -H-24. .. ,I 50 TgTgTTT 30 35 40 45 50 55 60 65 70 75 80 85 90 3.60 3.80 4.00 4.20

12763.D 060302.M Tue Jun 11 15:53:53 2002 Page 7

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