Table 1.

Selected ions for pesticides detection and retention times.

Pesticide	MW a	Ions monitoring (m/z)	Retention time (min)
CF	221.3	164, 149	2.57, 5.18
CAR	201.2	144, 115	3.88
ATZ	215.7	200, 215	5.29
MeP	263.2	263, 109	6.25
AME	227.3	227, 212	6.34

AME = ametryn; ATZ = atrazine; CAR = carbaryl; CF = carbofuran; MeP = methyl parathion; MW = molecular weight.

^aMolecular weight.