GCMS blank analysis report for sample AE02713, March 4 2002

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Library Search Compound Report .. Data File : C:\MSDCHEM\1\5 97 3N\0 2 FEB2 8\0205B.D Vial: 1 Acq On : 28 Feb 2002 10:30 am Operator: Sample : lab blank 2/5 Inst : Instrumen Mise : February 2 8, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\1...\HP022102 .M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L Peak Number 1 Butanoic acid, methyl ester Concentration Rank 4 R.T. EstConc Area Relative to ISTD R.T. 3.61 0.16 ug/L 65886 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Butanoic acid, methyl ester 102 C5H10O2 000623-42-7 83 2 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 83 3 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 83 4 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 78 Abundance Scan 21 (3.611 min): 0205B.D (-) m/z 43.10 100.00% 43 74

5000 - __ 59 87 3.50 3.60 3.70 3.80 3.90 4.00 49 | 0- ■ • i ■ ■ ' ‘ i 1 ■ ' • i ■ ■ • • i ' 1 ■ ‘ 1 ■ • i • ■ ‘ 1 i ■ • • i ■ ■ 1 ‘ i ' ■ ■ ' i ' ■ • ' i m/ z 74.00 89.17% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #9219: Butanoic acid, methyl ester 43 74 5000 27 ‘!‘111111111 15 3.50 3.60 3.70 3.80 3.90 4.00 59 87 m/z 71.00 61.21% 33 38 | | 102 0- 0)011 — —+ 1 1 | 1 1 1 1 f 1r r । | I । । 1 | ' m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #9220: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 43 ‘ ‘ I ‘ ‘ —mPTAPTT 74 3.50 3.60 3.70 3.80 3.90 4.00 15 m/z 41.10 30.09% 5000 27 59 87 33 miz-> 0‘ * i ‘ 10 * i • • ‘ j i 20 30 i 40 ayaahaanss/ 50 60 70 80 90 • 1 i ■ 100 | 1 ■ ■ i 1 1 ■ ' i 102 ' ‘ ‘ ■ i 110 Abundance #9227: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 'I “ ■‘I•■ ।■p ■ ।> l"“ I * • i' * 43 74 3.50 3.60 3.70 3.80 3.90 4.00 m/z 59.00 25.91% 5000 59 87 69 102 0 **1****1*1*| 4’ — 1 'I 1 ' 1 ''I +1 ■ ' i ■ ‘ ■ i ■ • • ■ i'1 • ■ ■ i " i1 ‘ “ i ■ ■ • ■ i • ■ " i11 “ 1“ " I /z—> 10 20 30 40 50 60 70 80 90 100 110 3.50 3.60 3.70 3.80 3.90 4.00

0205B.D HP022102.M Fri Mar 01 10:06:45 2002 Page 3

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