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Novel Potentiometric Membrane Sensor for the Determination of Trace Amounts of Chromium(III) Ions
Mohammad REZA GANJALI, Farhang MIZANI, Masoud SALAVATI-NIASARI and Mehran JAVANBAKHT
发表期刊Analytical Sciences
ISSN0910-6340
2003
卷号19期号:2页码:235-238
通讯作者Mohammad REZA GANJALI
英文摘要A plasticized Cr3+ ion sensor by incorporating 2,3,8,9-tetraphenyl-1,4,7,10-tetraazacyclododeca-1,3,7,9-tetraene (TTCT) ionophore exhibits a good potentiometric response for Cr3+ over a wide concentration range (1.0×10-6-1.0×10-1 M) with a slope of 19.5 mV per decade. The sensor response is stable for at least three months. Good selectivity for Cr3+ in comparison with alkali, alkaline earth, transition and heavy metal ions, and minimal interference are caused by Li+, Na+, K+, Co2+, Hg2+, Ca2+, Pb2+ and Zn2+ ions, which are known to interfere with other chromium membrane sensors. The TTCT-based electrode shows a fast response time (15 s), and can be used in aqueous solutions of pH 3 - 5.5. The proposed sensor was used for the potentiometric titration of Cr3+ with EDTA and for a direct potentiometric determination of Cr3+ content in environmental samples.
语种英语
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/2945
专题科研共享资源
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Mohammad REZA GANJALI, Farhang MIZANI, Masoud SALAVATI-NIASARI and Mehran JAVANBAKHT. Novel Potentiometric Membrane Sensor for the Determination of Trace Amounts of Chromium(III) Ions[J]. Analytical Sciences,2003,19(2):235-238.
APA Mohammad REZA GANJALI, Farhang MIZANI, Masoud SALAVATI-NIASARI and Mehran JAVANBAKHT.(2003).Novel Potentiometric Membrane Sensor for the Determination of Trace Amounts of Chromium(III) Ions.Analytical Sciences,19(2),235-238.
MLA Mohammad REZA GANJALI, Farhang MIZANI, Masoud SALAVATI-NIASARI and Mehran JAVANBAKHT."Novel Potentiometric Membrane Sensor for the Determination of Trace Amounts of Chromium(III) Ions".Analytical Sciences 19.2(2003):235-238.
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