GCMS analysis results for sample AD28165, Jan 2002

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Data File : C:\HPCHEM\1\DATA\DEC2101\28106.D Vial: 13 Acq On : 22 Dec 2001 4:51 am Operator: GALOS Sample : gems unknown 11/23 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 4 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1

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

7.77 1.85 ng/uL 672848 1,4-Dichlorobenzene-d4 11.79

Hit# of 5 Tentative ID MW Mol Form CAS# Qual

1 2-Pentanone, 4-bydroxy-4-methyl- 116 C6H12O2 000123-42-2 53 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 53 3 Acetic acid.1, 1 -dimethylethyl este 116 C6H1202 000540-88-5 28 4 Acetic acid, cyano -,1,1-dimethylet 141 C7H11NO2 001116-98-9 25 (Abundance Scan 320 (7.773 min): 28106.D (-) m/z 43.10 100.00% 43

59 5000

101 83 I 7.40 7.60 7.80 8.00 8.20 35 1, 53 , ' ’ I '. TT..1.. 1 1. TTTT T TTI +IHTT.T T—T | 4 * < . | ' | . . . » |> l < > | • m/z 59.10 50.76% miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #64274: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 i 59 7.40 ' 7.60 7.80 8.00 8.20 m/z 101.05 18.37% 27 83 101 , 49 TTBTTUTmTTTTTTI ■ ■ I ' ' • 1 I • ' > l • ■ ' ■ I ■ 1 1 ■ I ' T m/z~> 10 20 30 40 50 60 70 80 90 100 110 Abundance $642 75. 2-Pentann 4-hydroxy-4-mefhyl- 43 ,........ — 7.40 7.60 7.80 8.00 8.20 5000 m/z 58.10 15.37% 59

15 31 TTDunmD—TT T-CET-FFF=—F-T*1TI"ETEC-CCIT/LT1 m/z- 10 20 30 40 50 60 70 80 90 100 110 Abundance #3292: Acetic acid, 1,1-dimethylethyl ester 43 7.40 7.60 7.80 8.00 8.20

I m/z 41. 7.70% 5000 57 101 15 27 ' ' I 1 ' 1 1 i ' 1 1 1 1 ■ ■ TIH+ I 11 TTFrrI—CTECECEEOIEEET111111 A—AA Ar. AAr miz-> 10 20 30 40 50 60 70 80 90 100 110 7.40 7.60 7.80 8.00 8.20

28106.D NP112701.M FriDec 28 09:55:42 2001 Page 4

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