Lead-Selective Membrane Potentiometric Sensor Based on an 18-Membered Thiacrown Derivative

被引：0
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作者：
Mojtaba Shamsipur
Mohammad Reaza Ganjali
Ahmad Rouhollahi
机构：
[1] Razi University,Department of Chemistry
[2] Tehran University,Department of Chemistry
[3] Khajeh-Nasir University,Department of Chemistry
来源：
Analytical Sciences | 2001年 / 17卷
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摘要：
A PVC-based membrane electrode for lead ions based on hexathia-18-crown-6-tetraone as membrane carrier was prepared. The influence of membrane composition, pH of test solution and foreign ions on the electrode performance were investigated. The electrode showed a Nernstian response over a lead concentration range from 1.0 × 10–6 to 8.0 × 10–3 M at 25˚C, and was found to be very selective, precise and usable within the pH range 3.0–6.0. The electrode was successfully used as an indicator electrode in potentiometric titration of lead ions and in direct determination of lead in water samples.
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页码：935 / 938
页数：3
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