Dissipation of Diethyl Aminoethyl Hexanoate (DA-6) Residues in Pakchoi, Cotton Crops and Soil
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- 作者：Yaping Jiang (1)
Yuting Jiang (1)
Shun He (1)
Heli Zhang (2)
Canping Pan (1) - 关键词：Diethyl aminoethyl hexanoate ; Cotton ; Pakchoi ; Dissipation
- 刊名：Bulletin of Environmental Contamination and Toxicology
- 出版年：2012
- 出版时间：April 2012
- 年：2012
- 卷：88
- 期：4
- 页码：533-537
- 全文大小：173KB
- 参考文献：1. Guo X, Xu Y, Zhang F, Yu S, Han L, Jiang S (2010) Chlormequat residues and dissipation rates in cotton crops and soil. Ecotoxicol Environ Saf 73:642-46 CrossRef
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3. Ramesh A, Maheswari ST (2004) Dissipation of alachlor in cotton plant, soil and water and its bioaccumulation in fish. Chemosphere 54:647-52 CrossRef
4. Tao C, Li D, Zhang X, Chen S, Fu L, Piao X, Shi J, Jiang H, Li C, Li J (2010) Residue analysis of acephate and its metabolite methamidophos in open field and greenhouse pakchoi ( / Brassica campestris L.) by gas chromatography–tandem mass spectrometry. Environ Monit Assess 165:685-92 CrossRef
5. Wang Y, Zeng Z, Liu M, Yang M, Dong C (2008) Determination of organophosphorus pesticides in pakchoi samples by headspace solid-phase microextraction coupled with gas chromatography using home-made fiber. Eur Food Res Technol 226:1091-098 CrossRef - 作者单位：Yaping Jiang (1)
Yuting Jiang (1)
Shun He (1)
Heli Zhang (2)
Canping Pan (1)
1. College of Science, China Agricultural University, Beijing, 100193, China
2. Zhengzhou College of Animal Husbandry Engineering, Henan, 450011, China - ISSN：1432-0800
文摘
QuEChERS procedure and acetonitrile extraction, oscillation and ultrasonic procedure followed by GC–MS and LC–MS/MS (QqQ) detections were established for determination of diethyl aminoethyl hexanoate (DA-6) residues in pakchoi, cotton leaf, cotton seed and soil. At concentration levels of 0.005-?mg?kg?, recoveries were in the range of 80.5%-03.3%, with a RSD less than 14.2%. The LOQs of methods were 0.005, 0.003, 0.005 and 0.001?mg?kg? for the pakchoi, cotton leaf, soil and cotton seed samples, respectively. DA-6 was applied in supervised field trials at GAP conditions to pakchoi and cotton. It was found that the dissipation half-lives of DA-6 were 5.4-.2?days and 1.1-.2?days and 1.5-.9?days in cotton crop, pakchoi and soil respectively. At harvest, no detectable residues (<LOD) were found in cotton samples. However, residues was detected in pakchoi (0.007-.013?mg/kg) in Beijing and soil (0.008-.014?mg/kg) in Changsha in 2008.