GCMS blank results for VOCs, sample AE12326, June 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\052902\LBA.D Vial: 14 Acq On : 29 May 2002 8:41 pm Operator: McLean Sample : gc/ms scan 5/28 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 12 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 10 R.T. EstConc Area Relative to ISTD R.T. 5.95 0.56 ug/L 330346 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4 - hydroxy - 4 - me t hyl - 116 C6H1202 000123-42-2 64 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 64 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-245 4 Diacetamide 101 C4H7NO2 000625-77-4 37 Abundance Scan 489 (5.952 min): LBA.D (-484) (-) m/z 43.10 200.00% 43

5000 59 • ■ i ■ • ■ ■ i ■ ‘ ■ i ■ • ' ■ i ■ ■ • ■ i ■ 101 560 5.80 6.00 6.20 38 , 49 85 , | 0! * ‘I 1 11/ pel ■ Jl i • ‘ । ■ • • ■ । ‘I‘i . । . .. i . i . ।, m/z 59.10 32.38% "n/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methy- 43

5000 , h 1 1 i ■ Anal / 1 I ' ’ 1 'I 1 1 1 1 5.60 5.80 6.00 6.20 59 m/ z 58.10 23.76% 101

m/z-> Of n 10 ..... 20 77,32.38, 30 40 +48,53+ BBndB so 67 72 77.83— 96, | 91 HtumTT 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43 A ...... 4l n Wb,,,.,. 5.60 5.80 6.00 6.20 5000 m/z 101.00 12.95% 59

15 101

nz-> 01 T-r-r-r-Pr 10 n20 . 2%7130 . 38,140 +53+ 60 50 I ■ ■ 1 1 i • 1 ■ ■ i 70 80 83 ' i 1 90 - 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 1 ' i ■ ■ ■ ■ i ' ' 1 1 i ■ 1 ' • i ■ ' • • i ■ 43 560 5.80 6.00 6.20 m/z 42.10 8.93% 50001 59

0 ....... .. 26,31 , 38, 11′1 i ■ 1‛l • ■ i ■ • • ‘ i ■ • ' 1 1 1 1 1 1 1 1 63 83 — 93 1 |01 I ■ ■ 1 • i .■ * ■ ■ f 1 1 1 ‘ i ■ ■ ‘ ' i ■ ■ ■ ■ i ■ miz—> 10 20 30 40 50 60 70 80 90 100 110 5.60 5.80 6.00 6.20

LBA.D 052202.M Mon Jun 03 11:28:13 2002 Page 15

NYC-WTC_000014369