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測量溶液吸收度的方法目前,比色分析(严格地說应称为吸收分析)在广泛地被应用着,由于近代仪器和技术上的发展,这种方法除了用直接法測量一般吸收度,以測定微量成分外,还能对吸收度过高(高浓度)或吸收度过低(低浓度)的溶液进行測量,以測定物貭中某一含量較高或过低的成分。在适当条件下,可以获得相当滿意的結果,其中对高含量(可达90％以上的成分)的測定而言,有时可达与重量或容量分析同等的精确度。根据使用溶液調节透光度标尺讀数为“0”和“100”
Currently, the colorimetric analysis (strictly speaking, absorption analysis) is widely used. Due to the recent development of modern instruments and techniques, this method, in addition to measuring the normal absorbance by the direct method, Determination of trace components, but also for the absorption of high (high concentration) or low absorption (low concentration) of the solution was measured in order to determine a high or low content of ingredients 物. Under appropriate conditions, very satisfactory results can be obtained where, for the determination of high levels (up to 90% or more), the same accuracy as weight or capacity analysis can sometimes be achieved. According to the use of solution to adjust the transmittance scale reading “0” and “100”