Table 2.

Compound-specific parameters for analysis of analgesics in mouse plasma

	Transition (m/z)	Units
		Declustering potential	Entrance potential	Collision cell entrance potential	Collision energy	Collision cell exit potential
Bup	468.3 → 396.4	80.1	7.2	46.5	49.4	3.5
	468.3 → 414.4	71.3	10.7	68.1	48.9	4.1
Butp	328.3 → 131.1	50.7	5.1	170	71.1	2.2
	328.3 → 157.2	53.0	4.9	60.0	62.4	1.5
Carp	274.2 → 193.2	22.3	4.6	21.5	38.2	2.6
	274.2 → 228.2	24.4	4.8	25.6	20.5	3.5
Fent	337.3 → 105.2	47.3	4.4	82.0	51.2	1.9
	337.3 → 188.3	38.3	4.9	32.3	33.1	3.4
Melox	352.2 → 115.1	21.0	5.2	34.9	24.7	1.8
	352.2 → 141.2	36.6	4.6	43.1	28.6	2.2.
Naringenin	273.1 → 153	31.7	4.6	27.1	33.3	2.0

Naringenin was used as an internal standard.