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一概述光度法目前已成为最常用的分析手段之一,为了提高普通光度法的准确度,出现了差示光度法。为了提高灵敏度,雷赖等人于1955年提出了差示光度法的另一种类型——低吸收法,他们相应地把前一种差示法称为高吸收法。他们证明若将高、低吸收法结合起来,能获得更高的测量精度。这种方法他们称之为最精密光度法。这些年来,差示法(即高吸收法)获得了一定的发展,已用于若干元素高含量成分的分析。然而,二十
An overview of photometry has now become one of the most commonly used means of analysis, in order to improve the accuracy of the ordinary photometry, there have been differential spectrophotometry. In order to improve the sensitivity, Lei Lai and others in 1955 put forward another type of differential spectrophotometry - low absorption method, they correspondingly the former difference is called the high absorption method. They proved that if the combination of high and low absorption method, can obtain higher measurement accuracy. This method they call the most precise photometric method. Over the years, the differential method (ie, high absorption method) has made some progress, has been used for a number of elements of high content of the analysis. However, twenty