GCMS blank analysis for volatile organics, May 2002

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Library Search Compound Report

Data File : C:\MSDCHEM\l\DATA\020513\0507LB.D Vial: 4 Acq On : 13 May 2002 3:28 pm Operator: Nefliu Sample : 05/07 lab blk 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. 6.16 14.42 ug/1 1203180 1,4-Dichlorobenzene-d4 11.37 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4 -hydroxy-4 -me thyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 72 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 4 Acetone 58 C3H60 000067-64-1 16 Abundance Scan 524 (6.158 min): 0507LB.D (-517) (-) m/ z 43.05 100.00% 43

5000

101 । < l” । । । । । । । । । । f i i । । 'I i i r i' i 5 80 6.00 , 6.20 6.40 6.60 .69,...... 191............... 14’’ 468 * III m/z 59.05 49.37% m/z-> 0 50 100 150 200 250 300 350 400 450 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 । । • I ITi l . . I nnnTT I I I I I 5.80 6.00 6.20 6.40 6.60 m/z 58.10 19.24% 15 101 i 1,44,4 4.......... ....... .................. . . , 100 m/z-> 0 50 150 200 250 300 350 400 450 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 r —r pi m i -r । i 5.80 6.00 6.20 6.40 6.60 5000 m/z 101.10 17.26%

101 I........................................................ T 4*4.* tt/z-> 0 50 100 150 200 250 300 350 400 450 Abundance #109591: Acetic acid, 1,1-dimethylethyl ester 1 ■ I ■ * 1 1'I 1 1 I"InOO-p) 43 580 6.00 6.20 6.40 6.60 m/z 41.10 7.03% 5000

101 1 * 73 IT T( । r y i rv । । ITTTrrrrppr r i 1 i ' I ' ' ' ' . ........ । । ....... n/z—> 0 50 100 150 200 250 300 350 400 450 5.80 6.00 6.20 6.40 6.60

0507LB.D SCAN020507.M Wed May 15 09:53:29 2002 Page 3

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