An electrochemical scrubber for the elimination of eluent background effects in polarographic flow-through detection
An electrochemical scrubber for the elimination of eluent background effects in polarographic flow-through detection
复制标题
用于消除极谱流通检测中洗脱液背景影响的电化学洗涤器
DOI：
10.1016/s0003-2670(01)93716-x
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发表时间：
1980
影响因子：
6.2
通讯作者：
R. W. Frei
中科院分区：
文献类型：
--
作者：
H. B. Hanekamp;W. Voogt;P. Bos;R. W. Frei
含有多孔银电极的电化学洗涤器允许有效的洗脱液清除氧气、痕量金属和可还原的有机杂质。通过获得伏安图，可以确定每个系统的最佳工作电压。当洗涤器与滴汞或悬汞电极结合使用时，与洗脱液的常规氮气吹扫相比，实现了背景电流的100倍降低和噪声的10倍降低。研究了不同探测器工作模式下电极表面积对噪声和背景电流的影响。
An electrochemical scrubber containing porous silver electrodes permits an efficient eluent clean-up for oxygen, metal traces and reducible organic impurities. The optimal working voltage can be determined for each system by obtaining a voltammogram. When the scrubber is used in conjunction with a dropping or hanging mercury electrode, a 100-fold reduction of the background current and a 10-fold reduction of the noise is achieved compared to a conventional nitrogen purge of the eluent. The influence of electrode surface area on noise and background current has been studied with various detector operation modes.