Determination of Methomyl Residue in Tobacco Samples by Heart-Cutting Two-Dimensional Liquid Chromatography with Tandem Mass Spectrometry

Table 2

MRM analysis ions of methomyl.

Analyte	Precursor ions (m/z)	Product ions (m/z)	DP (V)	CE (eV)	Dwell (ms)
Methomyl	163^a	106	15	9	20
	163^b	88	44	15	20

^aQuantitation ion. ^bQualitation ion.