| 大环增敏示波极谱法测定烟草中的镉铅 |
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| 引用本文： | 张胜义,赵亮.大环增敏示波极谱法测定烟草中的镉铅[J].安徽大学学报(自然科学版),1996,20(3):67-71. |
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| 作者姓名： | 张胜义 赵亮 |
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| 作者单位： | 安徽大学化学系 |
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| 摘 要： | 用作者合成的新型大环化合物作为增敏剂，示波极谱法测定镉和铅。镉和铅分别在－０．４７Ｖ和－０．６３Ｖ产生灵敏的示波导数极谱峰，检出限分别为２．０×１０－８ｍｏｌ·ｄｍ－３和７．８×１０－９ｍｏｌ·ｄｍ－３。选择最佳实验条件，探讨了大环化合物的增敏机理。方法用于测定８种不同烟草样品中的镉和铅，结果满意
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| 关 键 词： | 示波极谱法，大环化合物 |
Determination of Cadmium and Lead in Tobacco by Oscillopolarography with the Macrocycle as Adsorption Incrementer |
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| Zhang Shengyi Zhao Liang He Guangmei,Ye Jun Zhang Yong Ni Shisheng.Determination of Cadmium and Lead in Tobacco by Oscillopolarography with the Macrocycle as Adsorption Incrementer[J].Journal of Anhui University(Natural Sciences),1996,20(3):67-71. |
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| Authors: | Zhang Shengyi Zhao Liang He Guangmei Ye Jun Zhang Yong Ni Shisheng |
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| Institution: | Department of Chemistry Anhui University Hefei 230039 |
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| Abstract: | In this paper,Cd and pb were determined in the solution of NH 4Ac+KI+HCI by the oscillopolarogrophy.The new synthesized macrocycle 7,12 diaza 4,5:14,15 dibenzo 3,16 dioxa 21 thiabiscyclo henicosa 18,20 diene(L)has been used as an adsorption incrementer.We have set up the optimum experiment condition and studied the increment mechanism of the macrocycle L.The linear ranges of determining Cd and pb are 4.0×10 -8 ～3.2×10 -6 mol·dm -3 and 2.0×10 -8 ～4.0×10 -6 mol·dm -3 respectively.The detection limits of Cd and pb are 2.0×10 -8 mol·dm -3 and 7.8×10 -9 mol·dm -3 respectively.The contents of Cd and pb in eight tobaccos are determined by proposed method and the results are satisfactory. |
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| Keywords: | oscillopolarography macrocycle |
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