GCMS analysis results, sample AE12288, June 2002

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Data File : C:\MSDCHEM\l\DATA\052902\12288.D Vial: 7 Acq On : 29 May 2002 2:58 pm Operator: McLean Sample : gc/ms scan 5/24 fb 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 13 Benzene, l-methyl-4-(1-meth... Concentration Rank 5 R.T. EstCono Area Relative to ISTD R.T. 10.17 0.99 ug/L 704444 1,4-Dichlorob'enzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Benzene, l-methyl-4-(1-methyleth... 134 C10H14 000099-87- 2 Benzene, l-methyl-3-(1-methyleth. .. 134 C10H14 000535-77- 3 Benzene, l-methyl-2-(1-methyleth. .. 134 C10H14 000527-84- 4 Benzene, l-methyl-4-(1-methyleth. .. 134 C10H14 000099-87- Abundance Scan 1206 (10.165 min): 12288.D (-1199) (-) m/z 119.10 100.00% 1* 9

5000 91 134 ..... A).......... miz-> Abundance 01 m. 10 20 30 40 50 60 70 80 90 l #53586: Benzene, 1-methyl-4-(1-methylethyl)- 100 110 120 130 140 •11 ■ ■ 980 10.00 10,20 10.40 m/z 134.10 28.50%

1’9

5000 MA 10.00 10.20 10.40 9.80 134 m/z 91.10 23.49% 91 27. 38 51 58 65 77 103 0 .. 111 ■ ■ ■111 ■ ‘ • ‘r fl| 1’111 ■ । i r iH'i i i i i'i'i’i । 1 । l1!1, r । i I‛I‛1 118 ■ ■ i ■ ■ miz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 140 Abundance #120827: Benzene, 1-methyl-3-(1-methylethyl)- 119 .A.A ... 9.80 10.00 10.20 10.40 5000 m/z 117.10 12.62% 134 91 27 41 51 58 65 77 ' .'iI1!'' ■ ■ i103 '‘i1'. i' ■''il| 0! **I***1* 15 Tmmmm 126 ■ ■ ■ । • ’ I’* /..................................... 10 20 30 40 50 60 70 80 90 100 110 120 130 140 Abundance #120829: Benzene, 1-methyl-2-(1-methylethyl)- 1* 9 980 10.00 10,20 10.40 m/z 120.10 11.16% 50001 134 91

n/z—> 0. ■ ‘ । 10 27 41 51 58 65 7. • 1 * I ‘ । 1 ‘j । j । r । r । i । [^tfi ′ Plh i । i PI-T 20- 30 40 50 60 70 80 -,.194 +127 90 100 110 120 130 140 ■ • i1 ■ A.A....... 9.80 10,00 10.20 10,40____

12288.D 052202.M Mon Jun 03 09:37:15 2002 Page 16

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