HIGHER DERIVATIVE ABSORPTION SPECTRA OF RARE EARTH IONS IN PERCHLORIC ACID AND THEIR ANALYTICAL APPLICATION Ⅵ.DIRECT DETERMINATION OF CERIUM,PRASEODYMIUM AND NEODYMIUM IN LICHT RARE EARTH-ALUMINIUM ALLOY BY DERIVATIVE SPECTROPHOTOMETRY

Chinese Journal of Applied Chemistry ›› 1990, Vol. 0 ›› Issue (1): 58-61.

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HIGHER DERIVATIVE ABSORPTION SPECTRA OF RARE EARTH IONS IN PERCHLORIC ACID AND THEIR ANALYTICAL APPLICATION Ⅵ.DIRECT DETERMINATION OF CERIUM,PRASEODYMIUM AND NEODYMIUM IN LICHT RARE EARTH-ALUMINIUM ALLOY BY DERIVATIVE SPECTROPHOTOMETRY

Yan Yan, Ren Ying

Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Received:1989-03-04 Revised:1989-06-13 Published:1990-02-10 Online:1990-02-10

Abstract

Abstract: A direct determination method of cerium,praseodymium and neodymium in the lightrare earth-aluminium alloy by using higher-derivative spectrophotometry in perchloric acidsolution is proposed. The content of lanthanum is determined by substraction. The resultswere in good agreement with those determined by x-ray fluorescence method. The methodis rapid, simple and accurate.

Key words: derivative absorption spectroscopy, rare earth, aluminium alloy, spectrop-hotometry

Yan Yan, Ren Ying. HIGHER DERIVATIVE ABSORPTION SPECTRA OF RARE EARTH IONS IN PERCHLORIC ACID AND THEIR ANALYTICAL APPLICATION Ⅵ.DIRECT DETERMINATION OF CERIUM,PRASEODYMIUM AND NEODYMIUM IN LICHT RARE EARTH-ALUMINIUM ALLOY BY DERIVATIVE SPECTROPHOTOMETRY[J]. Chinese Journal of Applied Chemistry, 1990, 0(1): 58-61.

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HIGHER DERIVATIVE ABSORPTION SPECTRA OF RARE EARTH IONS IN PERCHLORIC ACID AND THEIR ANALYTICAL APPLICATION Ⅵ.DIRECT DETERMINATION OF CERIUM,PRASEODYMIUM AND NEODYMIUM IN LICHT RARE EARTH-ALUMINIUM ALLOY BY DERIVATIVE SPECTROPHOTOMETRY

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