GCMS surrogate recovery report, sample AE12283, June 2002

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Data File : C:\MSDCHEM\l\DATA\0610022\12283.D Vial: 11 Acq On : 10 Jun 2002 7:10 pm Operator: Sample : gc/ms scan 6/7 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\NI ST9 8 . L Peak Number 18 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 15

R.T. EstConc Area Relative to ISTD R.T. 5.96 0.50 ug/L 394488 1,4-dichlorobenzene-d4 9.90 Hit# Of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 64 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 28 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 4 Acetone______ 58 C3H60 000067-641 9 Abundance Scan 491 (5.964 min): 12283.D (-487) (-) m/z 43.10 0.00% 43

5000 59 84 101 5.60 5.80 6.00 6.20 6.40 Of ,............ 35111 1/ 51 111111 ' i * । • l ।1 • i i । । । m/z 59.10 25.12% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 48

5000 ■ ■ i 1 ■ ‘ ■ i ■ ■ 5.60 5.80 6.00 6.20 6.40 59 m/z 58.10 23.64% 101 Of ............ 2732 38 148,53+ —1——67mu72— ' ' i ■ ■ ■ 1 I 1 1 1 1 i ' 1 1 1 1 1 77 83 91 96. | —mOOT miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 6.40 5000 m/ z 84.00 18.84% 59

15 101

niz-> ol ■ ■ J ■ 10 .20, ■ 29.31 30 ■ 38,1 40 +53+ 60 50 70 T ■ ■ । 80 । 90 । । । 83 । । 0 100 110 Abundance #109591: Acetic acid, 1,1-dimethylethyl ester 43 5.60 5.80 6.00 6.20 6.40 m/z 101.10 13.78% 57 5000

101 73 89 I 0 ...................................... .. 4—T 1 I' ■ ■ ■ 1 i n* ■ ■ i ■ 1 n’t 1 1 1 1 i 1 ' rer n/z-> 10 20 30 40 50 60 70 80 90 100 110 5.60 5.80 6.00 6.20 6.40

12283.D 060302.M Tue Jun 11 08:24:50 2002 Page 21

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