GCMS blank analysis results for sample AE11379, May 21, 2002

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Library Search Compound Report

Data File : C:\MSDCHEM\1\DATA\051702\0515LB.D Vial: 16 Acq On : 18 May 2002 1:49 am Operator: Mclean Sample : 5/15 eh Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T.

5.98 18.70 ug/L 20215000 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 56 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 25 4 Formamide, N,N-diethyl- 101 C5H11NO 000617-84-5 9 Abundance Scan 494 (5.982 min): 0515LB.D (-486) (-) m/z 43.10 100.00% 43

5000 59

101 5.60 5.80 6.00 6.20 6.40 01 ■ • । । +—"l । 69 83 ■ i 'i - 1..................... 207 m/z 59.10 45.31% /z-> 20 40 60 80 100 120 140 160 180 200 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

. .................... ... .......................... 5000 59 5.60 5.80 6.00 6.20 6.40 m/z 58.10 20.55% 15 31 101 83 ,| 0- p ria l pl Tdr r . . -I- 1 1 i ‘ ■ 1 i 1 1 1 1 i 1 1 ■ 1 i ' 1 ' 1 i 1 1 1 ■ i ■ ■ ■ ' i 1 ■ Tl/Z-> 20 40 60 80 100 120 140 160 180 200 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43

5.60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 18.14%

31 miz-> 01 -4 20 —40 1 । । -I- 60 80 83 101 100 120 140 160 180 200 Abundance #109590: Acetic acid, 1,1-dimethylethyl ester 43 5.60 5.80 6.00 6.20 6.40 m/z 41.15 7.04% 5000 57

29 101

0 15.11 73 1 1 i ■ 1 ■ ■ I Tr I 1 ' ■ 1 i 1 r ■ 1 i ■ 1 1 ' i r ' 1 ' i 1 1 i 1 ' 1'r i । 1 1 1 i ' 1 /z-> 20 40 60 80 100 120 140 160 180 200 5.60 5.80 6.00 6.20 6.40

0515LB.D 050102.M Tue May 21 11:58:09 2002 Page 4

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