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流动注射化学发光法测定抗蚜威

Determination of Pirimicarb by Flow Injection Combined with Chemiluminescence

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【作者】 何树华何德勇章竹君

【Author】 He Shuhua~(1),He Deyong~2,Zhang Zhujun ~(1,2)~1(Department of Chemistry,Fuling Teachers College,Chongqing 408003)~2(Institute of Analytical Sciences,School of Chemistry and Chemical Engineering,Southwest Normal University,Chongqing 400715)

【机构】 涪陵师范学院化学系西南大学化学化工学院分析科学研究所西南大学化学化工学院分析科学研究所 重庆408005重庆400715

【摘要】 在多聚磷酸钠介质中,抗蚜威能显著增强RhB-Cu2+-H2O2体系的化学发光强度。基于此,结合流动注射技术,建立了测定抗蚜威的流动注射化学发光新方法。该法的检出限为58μg/L(3σ);线性范围为0.1~10 mg/L;对1.0 mg/L的抗蚜威连续平行测定11次,其相对标准偏差(RSD)为2.8%。该方法灵敏、简单、快速。用于农田水、乌江水、长江水以及自来水中抗蚜威含量的测定,回收率为95.5%~100.9%,结果令人满意。

【Abstract】 A novel chemiluminescence(CL) system for the determination of pirimicarb in water was(described).In sodium polyphosphate medium,hydroxyl radical generated from the reaction of Cu2+ with H2O2 could oxidize rhodamine B to produce CL.Pirimicarb can enhance the CL intensity.The linear range of this system was 0.1-10 mg/L and the detection limit was 58 μg/L(3σ).The relative standard deviation was 2.8% for 1.0 mg/L of pirimicarb(n=11).The mechanism of the CL system was also(discussed).The(proposed) method was sensitive,simple,rapid,and has was successfully applied to the determination of pirimicarb in water environment.The mean recovery was 95.5%-100.9%.

【基金】 重庆市教委自然科学基金资助项目(No.KJ051305);教育部春晖计划资助项目(No.Z2005-1-55006)
  • 【文献出处】 分析化学 ,Chinese Journal of Analytical Chemistry , 编辑部邮箱 ,2006年11期
  • 【分类号】X839.2
  • 【被引频次】10
  • 【下载频次】143
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