GCMS blank analysis results for sample AE03508, March 2002

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Library Search Compound Report * Data File : C:\MSDCHEM\l\5973N\02MAR08\0219B.D Vial: 1 Acq On : 8 Mar 2002 10:39 am Operator: Sample : lab blank 2/19 Inst : Instrumen Mise : March 8, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP022102.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 4 Furan, 2,3-dihydro-4-methyl... Concentration Rank 5 R.T. EstConc Area Relative to ISTD R.T.

4.88 0.11 ug/L 53828 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Furan, 2,3-dihydro-4-methyl- (CA... 84 C5H8O 034314-83-5 42 2 Furan, 2,3-dihydro-4-methyl- 84 C5H80 034314-83-5 42 3 2-Butenal, 2-methyl- 84 C5H80 001115-11-3 9 4 2-Butenal, 3-methyl- (CAS) $$ 3-... 84 C5H80 000107-86-8 9 Abundance Scan 133 (4.875 min): 0219B.D (-) m/z 83.95 100.00% 84 55 41 59 5000

51 .। t... ,t.... 4.60 4.80 5.00 5.20

m/z—> 0- 44 ' ‘ p ' ‘' I ■ ‘‘ I ‘ ‘ ‘ ■ I ‘ ‘ ‘ I ■ 111 ■.. < [ I I ‘ ‘ ‘ 11 ‘ ‘ I ‘ ‘ ‘ ‘ I • ‘'11 ‘' 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 TT-p A m/z 55.00 75.26% Abundance #3351: Furan, 2,3-dihydro-4-methyl- (CAS) $$ 4-METHYL-2,3-.. 55 84

5000 41 .AM. 4.60 4.80 5.00 5.20 m/z 41.10 60.80% 69 Ot -r-rp-l-n-p-r 11 TTIT T-m p-r - mz-> 20253035 40 4550556065 70 75 80 85 90 95 Abundance #3350: Furan, 2,3-dihydro-4-methyl- 55 84 A —A 4.60 4.80 5.00 5.20 5000 41 m/z 59.10 57.69% 27 69 37 44 51 Ot TTp-n-T-p- T TTTTTT T - T-rp-rrrp-r 11 ■" ■ i ■ “ ■ i ■ ■ - mz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #3219:2-Butenal, 2-methyl- 55 84 —4.60AAA 4.80 5.00 5.20 m/z 83.00 55.03% 5000 29

26 37 44 51 miz—> 0 - T ’ 112111/17117 . > > p . > | ! 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 I'11111' " I 4.60 4.80 5.00 5.20

0219B.D HP022102.M Fri Mar 15 10:08:43 2002 Page 6

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