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《Acta Chimica Sinica》 1987-09
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Study on the Dual-System and Double-Wavelength Spectrophotometry

Xi Chang~Sheng Li Jin-He Han Chao Shi Hui-Ming~* (Chemistry Department, Nankai University, Tianjin)  
A new spectrophotometry——the dual-system and double-wavelength spectrophotometry has been developed. The method is based on the selection of the wavelengthpair in two independent coloured complex systems. By suitable choosing R and L systems both the anti-interference ability and the sensitivity could be effectively increased, and its adaptability is better than that in the conventional double-wavelength spectrophotometric method. This new method has been theoretically deduced and experimontally proved in the simultaneous determination of Cu(Ⅱ), Ni(Ⅱ) and Cd(Ⅱ), Mn(Ⅱ) pairs.
【Fund】: 中国科学院科学基金
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