Table 2.

m/z MS ions monitored

	Solvent	m/z ions
Class 3	2-butanol	45, 59
	Acetone	42, 58
	Butanone/methyl ethyl ketone	43, 72
	Diethyl ether	45, 59
	Ethanol	31, 45
	Ethyl acetate	43, 61
	Isopropanol (IsoOH)	43, 45
	Methyl tertbutyl ether (MTBE)	57, 73
Class 2	1.4-dioxane	58, 88
	Acetonitrile	40, 41
	Chlorobenzene	77, 112
	Cyclohexane	56, 84
	Cumene/isopropyl benzene	105, 120
	Methanol	31, 32
	Methyl cyclohexane	55, 83
	Methylene chloride	49, 84
	Ethylbenzene	91, 106
	o-xylene	91, 106
	p- and m-xylene	91,106
	Tetrahydrofuran	42, 72
	Toluene	91, 92
	Trans 1,2-dichloroethene	61, 96
	cis-dichloroethene	61, 96
Class 1	Benzene	52, 78