GCMS blank analysis results for volatile organics, Apr-May 2002

NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C:\MSDCHEM\1\DATA\020419\0410LB.D Vial: 4 Acq On : 19 Apr 2002 11:03 am Operator: Nefliu Sample : 04/10 lab blk Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020418.M (Chemstation 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 10.21 ug/1 14532200 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 72 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 37 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 28 Abundance Scan 524 (6.158 min): 0410LB.D (-518) (-) m/z 43.10 100.00% 43

5000 59

101 _ L । . 6.60 ■ 1 ■ i • 5.80 6.00 6.20 6.40 ........381) ■ ■ i ■ ■ ■ * i ■ • ■ ■ i ■ ■ ■ 1 l 1 +48,53+ .7,73.788—... H...... m/z 59.10 47.63% miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ■ • i ‘ ‘ 1 i 1 1 ' 1 i ' 1 1 1 I 1 ■ ■ ■ i ■ 59 5.80 6.00 6.20 6.40 6.60 m/z 58.10 20.01% 15 31 101 _ 26,1 . 381 +53+ ‘ ' I ‘ 1 ■ 1 i ' ' 14 ■ ■ 1 I 1 83 I ■ ■ ■ ■ i ■ ■ ■ ■ i ■'■ ■ ■ i ■ --- niz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 1-1 7 "71 114 t TTTT 5.80 6.00 6.20 6.40 6.60 5000 59 m/z 101.10 19.12%

oo . 101

niz-> —P 10 ... 20 331 30 .39,1 40 1—4 50 60 83 93 | I 1 ' 1 ' I J 1 1 CTE I 1 | 1 I l'!] I I 1 I J 1 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- ■ ■ i ■ ‘ ■ i ‘ ' • i ■ ■ 43 5.80 6.00 6.20 6.40 6.60 m/ z 41.05 6.89% __ 5000 59 0 101 ........... 27.32 38,1 +48,534 -1A/*/4/-I*4*II** 67 72 77 83 ■ 1 i ■ ■ ■ ■ i • • । 1 । । । 1*CLt 91 96, | ‘4"II TPrfi i1 r TTTTTT niz—> 10 20 30 40 50 60 70 80 90 100 110 5.80 6.00 6.20 6.40 6.60

0410LB.D SCAN020418.M Thu May 02 11:39:49 2002 Page 3

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