Studies of Highly Sensitive PVC Membrane Iodide Selective Electrode Based on Complexes of Mercury(Ⅱ) as Neutral Carriers

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (13): 1226-1229. Previous Articles Next Articles

汞配合物为载体的高灵敏PVC膜碘离子选择电极研究

柴雅琴¹, 许文菊¹, 袁若¹, 徐岚¹, 江璠²

1. 西南师范大学化学化工学院, 重庆现代分析重点实验室, 重庆, 400715;
2. 苏州科技学院化学系, 苏州, 215011

投稿日期:2003-11-11 修回日期:2004-01-10 发布日期:2014-02-17
通讯作者: 袁若,E-mail:yuanruo@swnu.edu.cn E-mail:yuanruo@swnu.edu.cn
基金资助:
教育部优秀青年教师资助计划(No.教人司2002-40)及重庆市自然科学基金(No.2002-7477)资助项目.

Studies of Highly Sensitive PVC Membrane Iodide Selective Electrode Based on Complexes of Mercury(Ⅱ) as Neutral Carriers

CHAI Ya-Qin¹, XU Wen-Ju¹, YUAN Ruo¹, XU Lan¹, JIANG Fan²

1. College of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Analytical Chemistry, Southwest China Normal University, Chongqing 400715;
2. Department of Chemistry, Suzhou College of Science and Technology, Suzhou 215011

Received:2003-11-11 Revised:2004-01-10 Published:2014-02-17

Abstract

A highly selective and sensitive iodide electrode based on the complexes of bis(5-methyl-1,3,4-thiadiazol-2-yl-thio)alkane mercury(Ⅱ) acetate as neutral carrier was developed, which displays an anti-Hofmeister selectivity sequence: I^->SCN^->ClO₄^->Br^->NO₃^->Cl^->AcO^->SO₄^2-.The electrode exhibits Nernstian potentiometric response to iodide with a linear range from 4.0×10^-8 to 1.0×10^-2 mol/L, a detection limit of 2.0×10^-8 mol/L and a slope of -59.1 mV/pc I^- in pH 3.0 of phosphorate buffer solution at 20℃.The response mechanism was discussed in view of the a.c.impedance technique and the UV spectroscopy.The anti-Hofmeister behavior of the electrode results from the direct interaction between the central metal and the analyte ion and steric effect associated with the structure of the carrier.The electrode has the features of fast response, fair stability, reproducibility and low detection limit.The electrode was successfully applied to the determination of iodide in Jialing River and Spring in Jingyun Mountains with satisfactory results.

Key words: iodide electrode, neutral carrier, mercury(Ⅱ)complex

Cite this article

CHAI Ya-Qin, XU Wen-Ju, YUAN Ruo, XU Lan, JIANG Fan. Studies of Highly Sensitive PVC Membrane Iodide Selective Electrode Based on Complexes of Mercury(Ⅱ) as Neutral Carriers[J]. Acta Chimica Sinica, 2004, 62(13): 1226-1229.

Export EndNote|Reference Manager|ProCite|BibTeX|RefWorks

share this article

References

[1] Daunert, S.; Bachas, L. G. Anal. Chem. 1989, 61, 499.
[2] Daunert. S.; Wallace, S.; Florido, A.; Bachas, G. Anal. Chem. 1991, 63, 1676.
[3] Li, J.-Z.; Pang, X.-Y.; Yu, R.-Q. Anal. Chim. Acta 1994, 297, 437.
[4] Yuan, R.; Chai, Y.-Q.; Liu, D.; Gao, D.; Li, J.-Z.; Yu, R.-Q. Anal. Chem. 1993, 65, 2572.
[5] Yuan, R.; Song, Y.-Q.; Chai, Y.-Q.; Yu, R.-Q. Talanta 1999, 48, 649.
[6] Shahrokhian, S.; Amini, M. K.; Kia, R.; Tangestaninejad, S. Anal. Chem. 2000, 72, 956.
[7] Shahrokhian, S.; Hamzehloei, A.; Bagherzadeh, M. Anal. Chem. 2002, 74, 3312.
[8] Chai, Y.-Q.; Xu, W.-J.; Yuan, R. Acta Chim. Sinica 2002, 60, 2192 (in Chinese).(柴雅琴, 许文菊, 袁若, 化学学报, 2002, 60, 2192.)
[9] Chai, Y.-Q.; Sun, Z.-Y.; Yuan, R.; Gan, X.-X.; Xu, W.-J.; Xu, L. Acta Chim. Sinica 2003, 61, 1511 (in Chinese).(柴雅琴, 孙志勇, 袁若, 甘贤雪, 许文菊, 徐岚, 化学学报, 2003, 61, 1511.)
[10] Horning, E. C. Org. Synth. Collect., Vol. III, Wiley, New York, 1955, p. 140.
[11] Si, Z.-X.; Ge, T.-A. Chemistry 1990, (4), 25 (in Chinese).(司宗兴, 葛天安, 化学通报, 1990, (4), 25.)
[12] Miroslav, V.; Alfonz, R.; Michal, S. Czech. CS 235170, 1987 [Chem. Abstr. 1989, 110, 38812].
[13] Xu, K.-H.; Li, L.-Z.; Liang, F.-Z. Hecheng Huaxue 1999, 7, 9 (in Chinese).(徐克华, 李来仲, 梁方珍, 合成化学, 1999, 7, 9.)
[14] Moody, G. J.; Oke, R. B. Analyst 1970, 95, 910.
[15] Chaniotakis, N. A.; Park, S. B.; Meyerhoff, M. E. Anal. Chem. 1989, 61, 566.
[16] Cotton, F. A.; Wilkinson, G.; Gaus, P. L. Basic Inorganic Chemistry, John Wiley & Sons Inc., New York, 1995, p. 497.
[17] Sluyters-Rehbach, M.; Sluyters, J. H. Electroanal. Chem. 1970, 4, 1.
[18] Yu, L. Handbook of Analytical Approach Standard on Water Quality, China Environmental Science Press, Beijing, 2003, p. 320 (in Chinese).(喻林, 水质监测分析方法标准实务手册, 中国环境科学出版社, 北京, 2002, p. 320.)

汞配合物为载体的高灵敏PVC膜碘离子选择电极研究

Studies of Highly Sensitive PVC Membrane Iodide Selective Electrode Based on Complexes of Mercury(Ⅱ) as Neutral Carriers

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	ZHANG Li-Na; CHAI Ya-Qin; YUAN Ruo*; LI Yan; YE Guang-Rong . Study of a New Selective Silver Electrode Based on 2,3-Butanedione-thiosemicarbazid as a Neutral Carrier [J]. Acta Chimica Sinica, 2007, 65(6): 537-541.
[2]	GUI Guo-Feng; CHAI Ya-Qin; YUAN Ruo*; SUN Ai-Li; WANG Fu-Chang. Study on New Highly Selective Thiocyanate Electrode Based on Dinuclear Copper Complex as Neutral Carriers [J]. Acta Chimica Sinica, 2006, 64(21): 2185-2189.