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在分析化学领域中,提高痕量元素存在型式(tracespecies)的检出性是很重要的。可是在环境调查中常常要涉及大量样品,特别是在广大范围内寻找污染物的散布情形。对于这种环境调查,价昂的方法,不论如何精密和灵敏,都不能适用,因为花费太大,而少花钱成为最重要的因素。因此,从这种观点出发,采用少花钱的简化方法去解决问题遂成为十分必要。日本东京工业试验所Kazuo Amaya设计出一种空气中污染物的简化取样器和一件分析上述样品的简化比色计。最简单的取样器(见右图a),这取样器是一只小塑料瓶,附
In the field of analytical chemistry, it is important to increase the detectability of tracespecies. However, a large number of samples are often involved in environmental investigations, especially in the search for dispersal of pollutants over a wide range of areas. For such environmental investigations, the method of price inflation, no matter how precise and sensitive, can not be applied because it is too expensive and the least cost is the most important factor. Therefore, from this point of view, it is necessary to adopt a simplified method to solve the problem with less cost. Kazuo Amaya, Industrial Testing Laboratory, Tokyo, Japan, designed a simplified sampler of airborne contaminants and a simplified colorimeter to analyze the above samples. The simplest sampler (see right a), this sampler is a small plastic bottle, attached