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随着工业的飞速发展,液体介质中的微量放射性核素及非放射性有害物质含量的分析日趋重要。如何提高分析方法灵敏度,加快分析测量速度,是从事分析测量方法研究者很关心的问题。为了提高液体样品分析测量的灵敏度,通常是在分析测量之前对样品进行浓缩处理。传统的“砂浴法”是普遍采用的一种,这种方法简单,无需精密设备,当然缺点也非常明显,主要是速度、耗电多,且需要人照看。我们研制的NFH-2型浓缩制样器具有如下特点:
With the rapid development of industry, the analysis of trace amounts of radionuclides and non-radioactive harmful substances in liquid media is becoming more and more important. How to improve the sensitivity of analytical methods to speed up the analysis of measurement speed is engaged in the analysis of measurement methods are very concerned about the problem. In order to increase the sensitivity of a liquid sample analysis measurement, it is common to concentrate the sample prior to analyzing the measurement. The traditional “sand bath method” is a commonly used one, this method is simple, without sophisticated equipment, of course, the shortcomings are also very obvious, mainly speed, power consumption, and the need for human care. We developed NFH-2-type concentrated sampler has the following characteristics: