Page 248 - Advances in Forensic Applications of Mass Spectrometry - Jehuda Yinon

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kCount file5807.ms RIC
15
GC/MS
12 Would be Negative
10
7
5
2
kCount f5808ms2.ms RIC
2 GC/MS/MS
2
1
1
5
0
1 2 3 4 5 6 7 8 9 10
minute
Figure 5.25 Upper TIC: tin can sample by GC/MS; bottom TIC: tin can sample
by GC/MS/MS.

C3 - BENZENES
kCount
1.5 Sample - GC/MS
1.2
1.0
0.7 Would be Negative
0.5
0.2
0.0
MCount May indicate an ignitable liquid
2.5 Gasoline - GC/MS
2.0 Good candidate for GC/MS/MS
1.5
1.0
0.5
0.0
kCount
7.5 Sample - GC/MS/MS
5.0 Now Positive
2.5
0.0
kCount
6 Gasoline - GC/MS/MS
5 Excellent comparison
4
3
2
1
0
1 2 3 4 5 6 7 8 9 minute
Figure 5.26 GC/MS/MS improves comparability to the reference gasoline anal-
ysis over GC/MS.
© 2004 by CRC Press LLC