GCMS blank analysis results for sample AE10207, May 2002

NYC 9/11 Public Portal Document

' Data File C:\MSDCHEM\1\DATA\02 0 5 09\05 01LB1.D Vial: 3 Acq On 9 May 2002 1:37 pm Operator: Nefliu Sample 05/01 lab blk kb Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1 Peak Number 1 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

R.T. EstConc Area . Relative to ISTD R.T. 6.15 14.03 ug/1 1525040 1,4-Dichlorobenzene-d4 11.38 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 42 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 4 2-Prop; nol, 2-methyl- 74 C4H10O 000075-65-0 23 Abundance Scan 523 (6.152 min): 0501LB1 .D (-511) (-) m/z 43.10 100.00% 43

59 5000

101 ■ ' i ■ ‘ ■ i ' ' T-f-p-r-r-r-p-

, , .71 83 . . 116 ..................................................... 250 5.80 6.00 6.20 6.40 ------ m/z 59.10 51.48% m/z—> 20 40I 60 80 1 00 120 140 160 180 200 220 240 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ‘ ' i ‘ ‘ i ■ ■ ■ ' 1*TTI । . 59 580 6.00 6.20 6.40 m/z 58.10 19.17% 15 31 101 83 J ■ । > ■ "i * 11114a m/z-> 20 40 60 80 100 120 140 160 180 200 220 240 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 ■ i |-i . n '| n-r*, i i | । 580 6.00 6.20 6.40 5000 59 m/z 101.10 16.64%

31 83 191 8 1, TI1 i ■ ■ ■ ■ i '■ ■ ■ 1 i ■ ' ■ ■ i 1 ' 1 1 i ■ 1 1 1 i 1 1 1 1 i 1 1 1 1 i 1 1 1 1 i 1 1 1 r r 1 1 1 1 i mfz—> 20 40 60 80 100 120 140 160 180 200 220 240 Abundance #109591: Acetic acid, 1,1 -dimethylethyl ester 43 580 6.00 6.20 6.40 m/z 41.10 7.45% 57 5000

101 73 89 | mfz—> ontpos 20 40 60 80 100 120 140 160 180 200 220 240 , r । i-. i 11*1771 TTTTTrprTT 5.80 6.00 6.20 6.40

0501LB1.D SCAN020507.M Tue May 14 15:01:53 2002 Page 3

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