GCMS blank analysis results for May 2002

NYC 9/11 Public Portal Document ulprary searcn compound Report Data File C:\MSDCHEM\1\DATA\050902\0508LB.D Vial: 4 Acq On 9 May 2002 5:43 pm Operator: Mclean Sample 5/8 kb 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 3 2-Pentene, 2,3-dimethyl- Concentration Rank 11 R.T. EstConc Area Relative to ISTD R.T. 5.03 0.25 ug/L 201773 1,4-Dichlorobenzene-d4 9.94

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentene, 2,3-dimethyl- 98 C7H14 010574-37-5/80 2 2-Pentene, 4,4-dimethyl-, (Z)- 98 C7H14 000762-63-0 80 ) 3 3-Penten-2-one, 4-methyl- 98 C6H10O 000141-79-7 80 4 2-Pentene, 4,4-dimethyl-, (E)- 98 C7H14 000690-08-4 80/ Abundance Scan 332 (5.030 min): 0508LB.D (-324) (-) m/z 83.10 100 .00% 83 55

5000 43 98 MA ! 35 4.60 4.80 5.00 5.20 5.40

/z-> 01 -----

0 10 20 30 40 50 H ■ I I ' 1 1 ' I 1 1 ' ' i ' 60 70 80 h—in 90 100 m/z 55.101 81.90%

Abundance #32863: 2-Pentene, 2,3-dimethyl- 55 83 41

5000 A 27 98 4.60 4.80 5.00 5.20 5.40 69 m/z 43.10 37.59% 15

m/z-> 0- 0 10 4 +44149 1 20 30 40I 50 1 111 60 63, 270 1 —771, 80 | 91 , 1 1 ' 1 1 1 90 100 MWW//MwNpo Abundance #116391: 2-Pentene, 4,4-dimethyl-, (Z)- 55 83 ‘ ‘* 1 i । i । । । । i । > । 41 4.60 4.80 5.00 5.20 5.40 5000 m/z 98.10 33.83% 27 98 15 01 1 "6"' 10 I -433+4+41+ +4944 163.1477, +91 m/z-> 20 30 40 50 60 70 80 90 100 Abundance #116425:3-Penten-2-one, 4-methyl- 55 83 4.60 4.80 5.00 5.20 5.40 m/z 39.10 31.90% 5000 43 98 29

0 ■ - । i • - ■ । । +1371/11,491,1 , 61 67 । • i i11 1 ' I 77 i ' ' ■ I'; । 189—1 I 1 ■ n/z-> o 10 20 ;30 40 50 60 70 80 90 100 4.60 4.80 5.00 5.20 5.40

0508LB.D 050102.M Tue May 14 10:14:48 2002 Page 6

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