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(一) 滴滴涕:D.D.T D.D.T乃系Dichloro-Diphnyl-Trichloro-ethane之缩写原名二氯二苯三氯乙烷。 D.D.T本身有两种异构体:一为P.P异构;一为O.P异构体,前者含量约70—80％其杀虫效最著後者含量约20—25％其效不著。
(1) DDT: D.D.T D.D.T is the abbreviation of Dichloro-Diphnyl-Trichloro-ethane originally named Dichlorodiphenyltrichloroethane. D.D.T itself has two isomers: one is P.P isomerism; one is an O.P isomer, the former content of about 70-80% of the most effective insecticidal effect of the latter content of about 20-25% of its effect.