Application of Ion-Selective Electrodes as Reference Electrodes
作者:
Ivan Sekerka,
JosefF. Lechner,
期刊:
Analytical Letters
(Taylor Available online 1979)
卷期:
Volume 12,
issue 12
页码: 1239-1248
ISSN:0003-2719
年代: 1979
DOI:10.1080/00032717908067914
出版商: Taylor & Francis Group
关键词: Reference Electrodes;Ion-Selective Electrodes;Interference;Low Levels of Halides;Silver;Mercury;Construction;Performance
数据来源: Taylor
摘要:
Reference electrodes limiting interfering effects of conventional reference electrodes on the measurement involving ion-selective electrodes have been developed. They are constructed of a plastic body with porous plug or sleeve junction. Solid state, low impedance, ion-selective electrodes (cupric, cadmium, fluoride) in the equilibrium of corresponding ion solution are used as the half-cells. The absence of interfering ions in the electrolyte allows the determination of the ion of interest at extremely low levels without interference. The electrodes have good reproducibility and stable intercomparison potentials of ± 0.2 mV. The performance of the electrodes has been tested for the measurement of sub-ppm halide levels. Data on stability, reproducibility, effects of temperature, ionic strengthand pH is presented and compared to that of conventional reference electrodes.
点击下载:
PDF (273KB)
返 回