CAJ | 학술논문

以全固态离子选择性电极为工作电极,活性炭电极为对电极,搭建了一个基于脉冲计时电流法的两电极体系离子检测系统。使用不同的离子选择性工作电极,施加连续脉冲电压信号,通过采集响应电流,可实现待测溶液中相应离子的定量检测。将其应用于pH,钙离子与氯离子的检测,结果表明,该检测系统具有精确度高、选择性好等优点,相比于传统电位分析方法,不易受电荷积累的影响。加之采用全固态两电极体系,使检测系统易于维护及小型化,在水质的实时在线监测中具有较好的应用前景。
이전고태리자선택성전겁위공작전겁,활성탄전겁위대전겁,탑건료일개기우맥충계시전류법적량전겁체계리자검측계통。사용불동적리자선택성공작전겁,시가련속맥충전압신호,통과채집향응전류,가실현대측용액중상응리자적정량검측。장기응용우pH,개리자여록리자적검측,결과표명,해검측계통구유정학도고、선택성호등우점,상비우전통전위분석방법,불역수전하적루적영향。가지채용전고태량전겁체계,사검측계통역우유호급소형화,재수질적실시재선감측중구유교호적응용전경。
A pulse amperometric two-electrode ion detection system has been developed by using a solid contact ion-selective working electrode and an active carbon counter electrode. By applying pulse amerometric potential,current responses related to the concentration of the primary ions can be obtained for quantification. pH value,Ca2+and Cl-ions have been detected by using corresponding ion-selective electrode. It can be seen that, this detection system demonstrates good sensitivity and selectivity and are found to be less sensitive to electrical interferences compared to potentiometric ISE sensors. Moreover,with the advantages of maintenance-free and easy to miniaturization,this ion detection system turns out promising on water property monitoring in domestic applications.