|
|||||
|
|
Amperometric detection studies of Nafion/indium hexacyanoferrate film for the determination of electroinactive cations in ion chromatography |
|
| Authors: | Q Xu S Zhang W Zhang L Jin K Tanaka H Haraguchi A Itoh |
| Institution: | Department of Chemistry, East China Normal University, Shanghai, 200062, P.R. China, CN National Industrial Research Institute of Nagoya, 1-1, Hirate-cho, Kita-ku, Nagoya-shi, Aichi 462, Japan, JP Dept. of Applied Chem. School of Engineering, Nagoya Univesity, Furo-cho, Chikusa-ku, Nagoya, 464–8603, Japan, JP |
| Abstract: | An amperometric detector based on the chemical modification of Nafion and indium (III) hexacyanoferrate (II, III) thin film (Nafion/In-CN-Fe) onto a glassy carbon (GC) electrode, was first successfully used for the determination of electroinactive cations (Li+, Na+, K+, Rb+, Cs+, NH4 +) in single column ion chromatography (IC). A set of well-defined peaks of electroinactive cations was obtained. The detection limits of the cations are 8.9 × 10–6 mol/L for Li+, 2.3 × 10–6 mol/L for Na+, 5.2 × 10–6 mol/L for K+, 4.8 × 10–6 mol/L for Rb+, 4.0 ׶10–6 mol/L for Cs+ and 5.3 × 10–6 mol/L for NH4 + at a single-to-noise ratio of 3. The proposed method was quick, sensitive and simple. The cations in rainwater and mineral water were successfully analyzed by this method. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |