Table 4.

Parameter of the tandem mass spectrometry. DP = declustering potential, EP = entrance potential, CE = collision energy, CXP = cell exit potential, MRM = multiple reaction monitoring.

MRM	Precursor	Product	DP	EP	CE	CXP
	(m/z)		(V)
Thiamethoxam	292	211	42	10	17	16
Clothianidin	250	169	41	10	19	12
Imidacloprid	256	209	58	10	49	6
5-OH-imidacloprid	270	46	−120	−10	−59	−6
Imidacloprid-olefine	252	205	−50	−10	−18	−23
Imidacloprid-D4	260	213	58	10	49	6