GCMS blank analysis results for sample AE11410, May 22 2002

NYC 9/11 Public Portal Document ulprary searcn compound Report

Data File : C:\MSDCHEM\1\DATA\051702\0515LB.D Vial: 16 Acq On : 18 May 2002 1:49 am Operator: Mclean Sample : 5/15 eh Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

5.98 18.70 ug/L 20215000 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2 -Pent anone, 4-hydroxy-4 -methyl- 116 C6H1202 000123-42-2(83 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 56 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 4 Formamide, N,N-diethyl- 101 C5H11NO 000617-84-5 9 Abundance Scan 494 (5.982 min): 0515LB.D (-486) (-) m/z 43.10 100.00% 43

5000 59 - 101 5.60 5.80 6.00 6.20 6.40 01 1 -----1 69 83 I । ।''I'1 — ——— —-27 m/z 59.10 45.31% m/z-> 20 40 60 80 100 120 140 160 180 200 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 59 5.60 5.80 6.00 s 6.20 6.40 m/z 58.10 20.55% 15 31 101 83 | 0 ! ri'। -lpl, par’n'i-' ■ ‘"t ' ' /z-> 20 40 60 80 100 120 140 160 180 200 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43

5.60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 18.14%

0- 31 .Itt l 11/////nm 1 r 1 J .83 101....................... m/z-> 20 40 60 80 100 120 140 160 180 200 Abundance #109590: Acetic acid, 1,1-dimethylethyl ester * । 1 1 ■ 1 i 1 p 43 5.60 5.80 6.00 6.20 6.40 m/z 41.15 7.04%

5000 57

29 101 15 I I 0 1111 11 11Ir .. 73 [........................................................... 1 r1'1 ' i1 ■1' 111 11 t 11 *11 ■1 n/z-> 20 40 60 80 100 120 140 160 180 200 5.60 5.80 6.00 6.20 6.40

0515LB.D 050102.M Tue May 21 16:00:02 2002 Page 4

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