Page 224 - Advances in Forensic Applications of Mass Spectrometry - Jehuda Yinon

1522_book.fm Page 198 Thursday, November 13, 2003 9:58 AM
Comparison of the Sensitivity between MS and MS/MS for Many of the Target Compounds Used in Fire Debris
Parent Ion Excitation Excitation EI/MS/MS Level of EI/MS Level of Amplitude Storage Level Detection (ng) Detection (ng) (V) (m/z) (m/z) 0.642 0.040 0.0 37 115 0.002 0.021 51.5 48 106 0.019 0.034 52.5 48 106 0.020 0.036 50.5 48 106 0.568 0.020 0.0 37 129 0.004 0.016 43.0 48 120 0.002 0.0

Formula C 8 H 18 C 8 H 10 C 8 H 10 C 8 H 10 C 9 H 20 C 9 H 12 C 9 H 12 C 10 H 22 C 9 H 12 C 10 H 14 C 11 H 24 C 12 H 26 C 13 H 28 C 11 H 10 C 11 H 10 C 14 H 30 C 15 H 32 C 16 H 34 C 17 H 36 C 19 H 40 C 18 H 38 C 20 H 42

Molecular Weight (g/mol) 114.23 106.17 106.17 106.17 128.26 120.19 120.19 142.28 120.19 134.22 156.31 170.33 184.36 142.20 142.20 198.39 212.41 226.44 240.47 268.52 254.49 283.60 Detection limits are determined as 3 times S/N.

Compound 1,2,4-trimethylbenzene 1,2,3-trimethylbenzene 2-methylnaphthalene 1-methylnaphthalene © 2004 by CRC Press LLC

Table 5.2 Analysis n-octane ethylbenzene p-xylene o-xylene n-nonane cumene n-decane p-cymene n-undecane n-dodecane n-tridecane n-tetradecane n-pentadecane n-hexadecane n-heptadecane pristine n-octadecane phytane Note: