Separation and Determination of Ln3+-5-Br-PADAP Complexes by HPLC

Abstract

Abstract: In this paper, a reversed-phase HPLCis employed to the separation and determination of complexes of Ln³⁺-5-Br-PADAPon a C₁₈(5 μm, 150 × 6.0 mm i.d.) column.The pre-column derivatization method was used.We studied the effects of the composition of mobile phase, the amount of buffer in the mobile phase, foreign ions, the column temperature and the flow rate on the separation and determination of Ln³⁺-5-Br-PADAPand determined the rare earth element in mineral.

Key words: Rare earth, 5-Br-PADAP, HPLC

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GAO Jin-zhang, WANG ji-min, HOU Jing-gou, XIN Wen-ii, BAI Guang-bi, KANG Jing-wan . Separation and Determination of Ln³⁺-5-Br-PADAP Complexes by HPLC[J]. Chem. J. Chinese Universities, 1992, 13(1): 40.

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Separation and Determination of Ln³⁺-5-Br-PADAP Complexes by HPLC

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