The Degradation Dynamics of Acetamiprid in Hainan Cowpea and the Soil

Jing Kun Liu; Chun Yuan Wu; Xiao Deng; Qin Fen Li

doi:10.4028/www.scientific.net/AMM.522-524.513

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 522-524The Degradation Dynamics of Acetamiprid in Hainan...

The Degradation Dynamics of Acetamiprid in Hainan Cowpea and the Soil

Abstract:

The HPLC method for acetamiprid in soil and cowpea was developed. The degradation dynamics of the acetamiprid in the soil and cowpea and the last residue in the cowpea were researched. The method recovery was 81% - 88% and the linear relationship was good from 0.05 to 5μg·mL^-1 with a CV less than 5%, which could meet the detection requirement. The half-life of the acetamiprid were 3.3 days and 4.1 days, respectively in soil and cowpea. The residue of the acetamiprid in the cowpea was less than 0.5μg·g^-1 4 days later when two times of the recommended dose. The half-life of the acetamiprid was short, which belongs to the easy degradation pesticide. The cowpea was sprayed 3 times, respectively with two times and 2.5 times of the recommended dose, which had a two days interval each time. The results showed that 4 days and 6 days later the acetamiprid residue in the cowpea were less than 0.5μg·g^-1.

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Periodical:

Applied Mechanics and Materials (Volumes 522-524)

Pages:

513-518

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.522-524.513

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Online since:

February 2014

Authors:

Jing Kun Liu, Chun Yuan Wu, Xiao Deng, Qin Fen Li*

Keywords:

Acetamiprid, Cowpea, Degradation Dynamics, Half-Life, MRL

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* - Corresponding Author

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