单扫描极谱法测定辛硫磷
Single Sweeping Polargraphic Determination of Phoxim
摘 要
用单扫描极谱法研究了辛硫磷的电化学行为。在pH 6.7的磷酸二氢钾-磷酸氢二钠缓冲溶液中,辛硫磷对达旦黄与吐温-80的络合吸附波具有抑制作用,据此建立了间接测定辛硫磷的方法。辛硫磷的质量浓度在0.009 4~28.22 mg·L-1范围内与峰电流呈线性关系,检出限(3s/k)为0.008 6 mg·L-1。方法应用于谷物样品和土壤样品中辛硫磷的测定,测得回收率在94.6%~105%之间。
单扫描极谱法
有机磷农药
吸附波
Phoxim
Single sweeping polargraphy
Organophosphorus pesticide
Adsorptive wave
Abstract
Electrochemical behavior of phoxim was studied by single sweeping polargraphy. It was found that the adsorptive wave of complex of titan yellow and Tween-80 was inhibited by phoxim in a PBS of pH 6.7. Based on this reaction, a single sweeping polargraphic determination of phoxim was proposed. Linear relationship between values of peak current and mass concentration of phoxim was obtained in the range of 0.009 4-28.22 mg·L-1, with detection limit (3s/k) of 0.008 6 mg·L-1. The proposed method was applied to analysis of samples of grain and soil, giving values of recovery in the range of 94.6%-105%.
中图分类号 O657.1
所属栏目 工作简报
基金项目
收稿日期 2013/3/27
修改稿日期
网络出版日期
作者单位点击查看
联系人作者杨晓花(chenwen@cdut.cn)
备注杨晓花(1986-),女,陕西安康人,硕士研究生,研究方向为环境分析化学。
引用该论文: YANG Xiao-hua,CHEN Wen,ZHAO Yang-yang,BAI Hua,YI Long-fei,ZOU Cai-qin. Single Sweeping Polargraphic Determination of Phoxim[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2014, 50(1): 67～71
杨晓花,陈文,赵阳阳,白花,易龙飞,邹彩琴. 单扫描极谱法测定辛硫磷[J]. 理化检验－化学分册, 2014, 50(1): 67～71
被引情况:
【1】沈劼,程欲晓,张琳,周宇艳,金樱华,郭争云,陈宁宁,鲜跃仲, "机械剥离石墨烯修饰电极检测食品接触材料中双酚A的迁移量",理化检验－化学分册 51, 765-769(2015)
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参考文献
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【2】彭媛芳,陈玲,尹伶玲.气相色谱法测定动物性食品中辛硫磷残留量［J］.山东农业科学, 2012,44(4):114-117.
【3】韩梅,杨晓凤,易胜国.毛细管短柱气相色谱法测定辛硫磷等有机磷农药残留［J］.西南农业学报, 2009,22(1):227-229.
【4】HAMSCHER G, PRIE B, NAU H. Determination of phoxim residues in eggs by using high-performance liquid chromatography diode array detection after treatment of stocked housing facilities for the poultry red mite (dermanyssus gallinae)［J］. Analytica Chimica Acta, 2007,586:330-335.
【5】任飞,张跃文,董金龙.高效液相色谱串联质谱法测定饮用水中辛硫磷和灭多威的农药残留［J］.光谱实验室, 2011,28(3):1435-1437.
【6】何书海,唐海武,陈菲.高效液相色谱法测定土壤中辛硫磷［J］.安徽农业科学, 2010,38(5):2566-2567.
【7】程定玺,左国强,赵亚鹏,等.荧光光度法快速测定辛硫磷残留量［J］.理化检验-化学分册, 2010,46(10):1129-1131.
【8】沈飞,闫战科,叶尊忠,等.近红外光谱分析技术在辛硫磷农药残留检测中的应用［J］.光谱学与光谱分析, 2009,29(9):2421-2424.
【9】何颖,张涛,康天放.蔬菜中有机磷农药残留的分光光度法快速检测［J］.理化检验-化学分册, 2011,47(1):51-53.
【10】杨书昌,师真,刘拥军,等.用多壁碳纳米管修饰玻碳电极为工作电极循环伏安法测定辛硫磷［J］.理化检验-化学分册, 2011,47(1):51-53.
【11】LI Bing, HU Reng-ping, CHENG Zhe, et al. Titanium dioxide nanoparticles relieve biochemical dysfunctions of fifth-instar larvae of silkworms following exposure to phoxim insecticide［J］. Chemosphere, 2012,89(5):609-614.
【12】谭琳,卢旭晓,白慧萍,等.基于氧化锌纳米棒的乙酰胆碱酯酶生物传感器用于辛硫磷农药测定［J］.理化检验-化学分册, 2011,47(1):567-570.
【13】陈文,王正猛,陆素娟,等.单扫描极谱法测定果、蔬中有机磷农药残留量［J］.分析测试技术与仪器, 2001,7(4):242-245.
【14】高庆云,吴永芹,李晓华,等.单扫描示波极谱法测定辛硫磷残留量的研究［J］.山东化工, 2010,39(11):46-53.
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