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Citation: Zhang Jingyu, Ren Ying, Miao Ping. STUDIES ON COMPUTATIONAL DERIVATIVE SPECTROPHOTOMETRYⅠ.SIMULTANEOUS DETERMINATION OF TUNGSTEN AND MOLYBDENUM[J]. Chinese Journal of Applied Chemistry, ;1990, 7(5): 34-38. shu

STUDIES ON COMPUTATIONAL DERIVATIVE SPECTROPHOTOMETRYⅠ.SIMULTANEOUS DETERMINATION OF TUNGSTEN AND MOLYBDENUM

1.
Changchun Institute of Applied Chemistry, Academia Sinica Changchun 130022

Received Date: 16 November 1989
Available Online: 22 February 1990
Fund Project:

The computation method and the differences between components are the dominated factors which affect the accuracy of an analytical determination with computation spectrophotometry.Computational-derivative spectrophotometry, based on taking advantage of the higher resolu-tion of derivative spectrum, was proposed for the simultaneous determination of multicompo-nents. The additivity of derivative spectra and the selection of measuring points are impor-tant factors for this method. The measuring points were selected in different order deriva-tive spectrum according to the condition number of the coefficient matrix. The concentrations of the components were calculated by solving a group of equations. The analytical application of the method to the W/Mo-SAF-CTMAB proves that the method is quite simple and accurate.
- derivative spectrophotometry,
- tungsten,
- molybdenum
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