Page:NIOSH Manual of Analytical Methods - 5601.pdf/10

 ORGANONITROGEN PESTICIDES: METHOD 5601, Issue 1, dated 15 January 1998 - Page 10 of 21 TABLE 4.

APPROXIMATE RETENTION TIMES AND INDICES FOR ORGANONITROGEN PESTICIDES AND POTENTIALLY INTERFERING COMPOUNDS Column: Solvent:

COMPOUNDA (by retention time) Solvent void volume Asulam Imazapyr Acetaminophen /IS Oxamyl Caffeine Methomyl Formetanate Sulfometuron methyl Acetanilide /IS Fenuron 2,4-D acid Nicotine Carbendazim Chlorimuron ethyl Aldicarb Tebuthiuron m-Cresol Bromacil Hexazinone Dinoseb Simazine Monuron Acetophenone /IS Cyanazine Metribuzin Thiodicarb Aminocarb Propoxur Bendiocarb Carbofuran Fluometuron Chloroform Carbaryl Atrazine Metalaxyl Diuron DEET alpha-Naphthol Propiophenone /IS Propachlor Thiophanate Propham Diethyl phthalate Clomazone Siduron Desmedipham Phenmedipham

Retention IndexB 0.000 0.004 0.372 1.000 1.269 1.397 1.445 1.573 1.868 2.000 2.053 2.064 2.179 2.192 2.422 2.755 2.817 2.866 2.902 2.921 2.928 2.938 2.981 3.000 3.003 3.115 3.247 3.301 3.317 3.376 3.399 3.551 3.601 3.654 3.688 3.837 3.843 3.851 3.893 4.000 4.241 4.241 4.267 4.367 4.459 4.615 4.696 4.700

HPLC COLUMNS AND CONDITIONS C18 Cyano MeCN MeOH MeCN Ret. Time Ret. Time Retention Ret. Time (min) (min) Index (min) 2.3 1.4 0.000 3.0 2.3 3.2 4.7 1.000 6.1 9.9 1.865 7.0 6.8 7.0 10.7 1.915 7.4 C 7.7 2.574 12.8 9.3 9.9 2.000 8.1 10.2 10.2 10.8 C 10.8 4.274 13.6 11.9 13.5 19.9 3.000 10.5 13.8 23.9 14.0 14.2 14.3 14.3 14.3 14.5 14.6 3.000 10.5 14.6 15.0 15.5 15.7 15.8 22.9 3.675 13.1 16.0 23.3 16.1 23.2 4.018 14.4 16.6 25.2 16.8 17.0 24.5 5.236 19.1 17.1 17.6 17.6 27.0 5.751 21.1 17.7 17.8 14.4 18.2 4.000 18.8 18.8 27.6 18.9 25.9 5.092 17.7 19.2 19.4 19.9 20.1 20.1 >33

NIOSH Manual of Analytical Methods, Fourth Edition

MeOH Ret. Time (min) 3.2

6.4 6.6 11.3 7.7

12.9 10.1

9.9

11.9 14.1

18.2

19.9

17.3