GCMS blank analysis results, May 22, 2002

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Data File C:\MSDCHEM\1\DATA\052102\LB.D Vial: 10. Acq On 21 May 2002 8:40 pm Operator: Mclean 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 3 2-Butenal, 2-methyl- Concentration Rank 10 R.T. EstConc Area Relative to ISTD R.T. 3.76 0.79 ug/L 622002 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Butenal, 2-methyl- 84 C5H80 001115-11-3/7 2 Thiophene 84 C4H4S 000110-02-/ 5 3 (S)-5-Hydroxymethyl-2[5H]-furanone 114 C5H603 078508-96/0 4 4 (S)-(+)-1-(2-Pyrrolidinylmethyl)... 154C9H18N2 051207-66-0 4 Abundance Scan 116 (3.761 min): LB.D(-114)(-) m/z 84.00 0.00% 49 84

41 5000 70

3.40 3.60 3.80 4.00 4.20 01 / 70 80 —PP - 90 g 100 110 120 m/z 49.10 84.43% miz-> 10 20 30 40 50 60 Abundance #116563:2-Butenal, 2-methyl- 55 84

5000 29 3.40 3.60 3.80 4.00 4.20 41 m/z 41.00 64.38%

miz-> 01 . 10 20 30 40 49, 50 60 69 ■ i ■ ■ • ‘'i ■ ■ ■ 1 i ■ 70 80 ‘ 1*’* p. I I | I J I ! | I 90 100 110 120 Abundance #116585: Thiophene 84

58 3.40 3.60 3,80 4.00 4.20 5000 m/z 70.00 46.97%4 45 39

01 12 18 26 32! , ---- 51 , 69 76—41 ■ ■ l ■ ■ 1 ■ | | । 1 n/z-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #33653: (S)-5-Hydroxymethyl-2[5H]-furanone 84 3.40 3.60 3.80 4.00 4.20 m/z 85.00 28.50% 5000 55 31

/z—> 0 —15.214 10391745,1—— 10 20 60 30 40 50 68 TPTT 70 80 IL ■ । 90 96 ■1 ■ । ■' ■ ■ । ■ ■ ■ ■ । • 100 110 114 120 3.40 3.60 3.80 4.00 4.20

LB.D 052202.M Wed May 22 12:03:12 2002 Page 6

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