Detection of AU(III) ions using a poly(N,N-dimethylacrylamide)-coated QCM sensor

被引:8
作者
Tokuyama, Hideaki [1 ]
Kitamura, Eri [1 ]
Seida, Yoshimi [2 ]
机构
[1] Tokyo Univ Agr & Technol, Dept Chem Engn, Koganei, Tokyo 1848588, Japan
[2] Toyo Univ, Nat Sci Lab, Bunkyou Ku, Tokyo 1128606, Japan
关键词
QCM sensor; Au(III) ion; Polymer; Gel; Adsorption; Poly(N; N-dimethylacrylamide); QUARTZ-CRYSTAL MICROBALANCE; METAL-IONS; HYDROGEL;
D O I
10.1016/j.talanta.2015.09.003
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A polymer-coated quartz crystal microbalance (QCM) sensor has been developed for the detection of Au (III) ions in a HCl aqueous solution. Poly(N,N-dimethylacrylamide) (poly(DMAA)) gel was used as a sensing material. The poly(DMAA) gel adsorbs Au(III) ions in the HCl aqueous solution, whereas it is inactive toward most other metal ions. The equilibrium adsorption of Au(III) ions onto the poly(DMAA) gel can be expressed by the Henry-type isotherm. The oscillation behavior of the poly(DMAA)-coated QCM sensor was investigated, and linear relationships between the resonance frequency shift and the concentration of Au(III) ions were obtained for concentrations of less than 0.032 mol/m(3) (63 mg/m(3)) in the single and multicomponent metal systems. The poly(DMAA)-coated QCM sensor detects Au(III) ions successfully with high selectivity and sensitivity even in the presence of other metal ions and organic compounds. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:507 / 509
页数:3
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