The Application of Negative Absorption Spectrophotometry in Discolouring Kinetic Spectrophotometric Determination
HUANG Ze nan , HUANG Chang, ZOU Jian ming (Xiangtan Teacher's College,The No.2 Hospital of Xiangtan, Xiangtan Workers and Staff Sanatorium,Xiangtan,411100)
The application of negative absorption spectrophotometry in discolouring kinetic spectrophotometry has been studied with fishing discolouring kinetic spectrophotometry determination of SO 2- 3 as an example. Compared with positive absorption spectrophotometry, the proposed method can increase sensitivity by 40%, lower the standard deviation by 83.4% and extend the linear dynamic range by two orders of magnitude.
【CateGory Index】： O657.3