氦离子化检测器包括放射性检测器、放电检测器和光电离检测器等几种。它们对许多气体物质都有很高的响应,特别适用于微量惰性气体与无机气体的检测。本文介绍我们研制的一种分析永久气体用的简单的高灵敏度放射性氦检测器。初步探索了载气中微量杂质对检出限量和峰形的影响。 Helium ionization detectors include radioactive detectors, discharge detectors and photoionization detectors. They have a high response to many gaseous substances and are particularly suitable for the detection of trace amounts of noble gases and inorganic gases. This article describes a simple, highly sensitive, radioactive helium detector we have developed for the analysis of permanent gases. The effects of trace impurities in carrier gas on the detection limit and peak shape were preliminary explored.