硫丹在辣椒果实上残留量的气液色谱研究

Gas-liquid chromatographic studies on residues of endosulfan on chilli fruits.

作者信息

Pokharkar D S, Dethe M D

出版信息

J Environ Sci Health B. 1981;16(4):439-51. doi: 10.1080/03601238109372270.

Abstract

Studies on the residues of endosulfan were undertaken by GLC so as observe the dissipation of endosulfan and its isomers on green fruits of chilli, Capsicum annuum Linn. and also to know the effect of washing the fruits on the residues. The pattern of dissipation of endosulfan was conventional showing half-life less than two days. The waiting periods worked out were 5 and 7 days after protecting the crop with four sprays of 0.03 and 0.08% endosulfan respectively. The dissipation of alpha isomer was found faster than that of beta isomer. Washing of fruits from treated crop was found quite effective in reducing the level of residues on the fruits.

摘要

采用气相色谱法对硫丹残留量进行了研究，以观察硫丹及其异构体在辣椒（Capsicum annuum Linn.）绿色果实上的消解情况，并了解清洗果实对残留量的影响。硫丹的消解模式符合常规，半衰期小于两天。在用0.03%和0.08%的硫丹分别进行四次喷雾处理保护作物后，计算得出的安全间隔期分别为5天和7天。发现α异构体的消解速度比β异构体快。结果表明，清洗经处理作物上的果实对于降低果实上的残留量非常有效。