Calix[6]arene을 이용한 세슘 이온 선택성 고체 접촉 전극
Cesium Ion Selective solid Contact Electrodes Based oncalix[6]arene
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Abstract
Cesium ion selective solid contact electrodes have been fabricated from Pt substrate and poly(aniline) electro- conductive layer and PVC matrix, Calix[6]arene as ionophore, KTpClPB as lipophilic additive and DBS as plasticizer. The limited response range of this electrode was 10-6.24 M of cesium ion in sample solution with a mean Nernstian slope of 53.14 mV/decade between pH 5.4 and 10.3. The stabilization time was 2.7 hrs. with the response time of 109 sec. The selectivity coefficients for monovalent cations were determined. Especially when the electrodes were directly applied to the artificial human serum, we could get the satisfying results. Lifetimes of at least 3 months were estimated.
참고문헌 (8)
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