Studies of human blood, performed in clinical diagnostic laboratories, are conducted on numerous indicators. Potassium concentration is one of these. This review presents the chronological development (since the mid-1950s) of techniques for determining the concentration of potassium in plasma, serum, and whole blood, which are based on different analytical methods, such as flame photometry, potentiometry, ion chromatography, mass spectrometry, X-ray fluorescence, spectrophotometry, turbidimetry, and luminescence. Brief information about these methods and the results of comparative examinations are given. It is noted that potentiometric methods for determining the concentration of potassium in plasma, serum, and whole blood are widely used in small and medium-sized laboratories, as well as in large clinical and diagnostic centers. Flame photometric methods are commonly used as the reference in comparing measurement results obtained by other techniques. Ionchromatographic techniques also claim this status, and mass spectrometric techniques are used for certification of reference materials.

中文翻译：

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血液中钾浓度测定方法研究的年代学

在临床诊断实验室中进行的人体血液研究是针对众多指标进行的。钾浓度是其中之一。这篇综述介绍了自1950年代中期以来血浆，血清和全血中钾浓度测定技术的发展历程，这些技术基于不同的分析方法，例如火焰光度法，电位法，离子色谱法，质谱法，X射线荧光，分光光度法，比浊法和发光法。给出了有关这些方法的简要信息以及比较检查的结果。值得注意的是，电位测定法可用于测定血浆，血清和全血中钾的浓度，已广泛用于中小型实验室以及大型临床和诊断中心。火焰光度法通常用作比较其他技术获得的测量结果的参考。离子色谱技术也拥有这种地位，质谱技术用于标准物质的认证。