期刊
ELECTROANALYSIS
卷 18, 期 12, 页码 1186-1192出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200503495
关键词
zinc(II)-selective electrode; PVC membrane; tetraazamacrocycle; potentiometry
A PVC membrane electrode using [Bzo(2)Me(2)Ph(2)(16)hexaeneN(4)] (I) as ionophore, oleic acid as lipophilic additive and o-nitrophenyloctyl ether as plasticizer has been investigated as Zn(II)-selective electrode. The membrane incorporating 34.9% (w/w) PVC, 2.3% I, 4.7% OA and 58.1% o-NPOE gave linear response over the concentration range 2.82 x 10(-6) - 1.0 X 10(-1) M with a Nernstian slope of 28.5 +/- 0.2 mV/decade of concentration with a detection limit of 2.24 x 10(-6) M (0.146 ppm) and showed a response time of less than 10 s and could be used in pH range 2.5-8.5. High selectivity was obtained over a wide variety of metal ions. The proposed electrode was successfully used as an indicator electrode in potentiometric titration of zinc ions with EDTA and for determination of zinc in real samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据