Effect of Pretreatment on Detection of 37 Pesticide Residues in Chrysanthemum indicum

Table 1

Qualitative and quantitative ions of group A and group B pesticides.

Group A						Group B
Name	Retention time (T/min)	Quantitative ion	Qualitative ions			Name	Retention time (T/min)	Quantitative ion	Qualitative ions
α-BHC	12.446	181	183	217	219	o,o,o-Triethylphosphorothioate	5.366	198	121	97	93
γ-BHC	13.971	181	183	111	219	Thionazin	10.668	97	96	107	143
Heptachlor epoxide	14.664	100	272	274	270	Phorate	11.82	75	121	97	260
Aldrin	15.69	66	263	91	265	Sulfotep	11.973	322	97	202
Alachlor	16.575	45	160	188	146	Pentachloronitrobenzene	12.912	267	142	214	249
β-BHC	17.175	181	183	219	109	Diazinon	13.305	137	179	152	199
δ-BHC	18.121	181	183	219	217	Disulfoton	14.058	88	89	97
Heptachlor exo-epoxide	18.98	253	255	81	351	Dimethoate	15.676	87	93	125	79
Pendimethalin	19.586	252	162	253	281	Ronnel	16.116	285	287	125	109
α-Endosulfan	19.972	195	241	237	239	Metalaxyl	17.355	206	132	160	146
p,p′-DDE	21.111	246	318	248	316	Chlorpyrifos	17.481	197	97	199	314
Dieldrin	21.757	79	81	82	263	Methyl parathion	17.661	109	125	263
Endrin	22.743	263	81	265	261	Fenthion	18.287	278	125	109	169
m,p′-DDD	25.141	235	237	165		Bromophos	18.467	331	329	125	333
β-Endosulfan	25.301	195	237	207	241	Heptachlor exo-epoxide	18.985	253	255	81	351
Endosulfan sulfate	29.937	123	272	183	237	Parathion	19.456	109	97	291	139
Tetradifon	33.773	159	111	227	229	Quinalphos	20.232	146	157	118	156
						Procymidone	22.239	96	283	67	285
						Profenofos	22.46	139	97	207	206
						Famphur	30.968	218	125	93	217
						Quizalofop ethyl	39.729	299	372	163	243