GCMS blank analysis results, May 22, 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\1\DATA\052102\LB.D Vial: 10 Acq On 21 May 2002 8:40 pm Operator: Mcleah Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 11 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.94 10.15 ug/L 7956390 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qu 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4 - hydroxy - 4 - me t hyl - 116 C6H1202 000123-42 -250 3 2-Pentanone, 4-hydroxy-4-methyl - 116 C6H1202 000123-42-2 42 4 2-Pentanone, 4 - hydroxy - 4 - me t hyl - 116 C6H12O2 000123-42-2 32 Abundance Scan 487 (5.941 min): LB.D (-480) (-) m/ z 43.10 100.00%| 43

5000 59

101 ■ ■ I ■ ' ' ■ I 1 ' ■ ■ IT7 । ।

miz-> 01 mm* 10 20 30 40 —IH 50 53,, > f . . 67 ।60 . . । 70 73 80 83 88 . i . . . . i . ‘ . i i 1 . . . [ . 90 100 110 5,60 5.80 6.00 6.20 m/z 59.10 41.45% Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43 _I 5000 59 5.60 5.80 6.00 6.20 m/z 58.10 22.14%

niz-> 0 15 1 i ■ 1 ' 1 i ■ 10 20 29,3130 ,38,4 40 50 53 , 60 70 80 83 90 + 101

100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 ■ i ■ ■ ■ ■ i 5.60 5.80 6.00 6.20 5000 m/z 101.10 16.21% 59

67 72 71*283—— o 101 01 32 38,1 +48,534 — 1 1 * ’ ‘ ‘ (1 * 1 1 1 • 1 1 1 91 96, | miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6,00 6.20 m/z 41.05 6.67% 5000 59

po . 101

miz-> 0 ■.10....... 20 29,31 30 .39,140 trersik 50 60 83 14/-/8/*L/**’’I’’*I’I’’IIII 70 80 90 93 100 | 110 TTTTTTTTT 5.60 5.80 6.00 6.20

LB.D 052202.M Wed May 22 12:03:23 2002 Page 14

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