Potentiometric Response of a Neutral-carrier-based Membrane to Aqueous Mercury in Cl−-rich Media

被引：0
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作者：
Yunmi Kim
Jongwon Kim
Kyoung Nam Kim
Suk-Kyu Chang
Taek Dong Chung
机构：
[1] Seoul National University,Department of Chemistry
[2] Chungbuk National University,Department of Chemistry
[3] Chung-Ang University,Department of Chemistry
来源：
Analytical Sciences | 2009年 / 25卷
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摘要：
The unique potentiometric response of mercury sensors was investigated in aqueous Cl–-rich media, which are often encountered in natural, especially biological samples. The conventional neutral-carrier-based Hg(II)-ISEs are not practically useful because the Cl– concentrations in natural aqueous samples are normally too high for mercury to be present in the form of Hg2+. Negative potentiometric slopes, which are the opposite behavior of the previously reported Hg(II)-ISEs, were experimentally confirmed and quantitatively reasoned based on the aqueous solution equilibrium of Hg2+.
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页码：567 / 570
页数：3
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