Determination of aluminum in environmental and biological samples by reversed-phase high-performance liquid chromatography via pre-column complexation with morin |
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| Authors: | Lian Hong-Zhen Kang Yu-Fen Yasin Arkin Bi Shu-Ping Shao Da-Lin Chen Yi-Jun Dai Le-Mei Tian Li-Ching |
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| Institution: | State Key Laboratory of Coordination Chemistry, Department of Chemistry and Center of Materials Analysis, Nanjing University, 22 Hankou Road, Nanjing 210093, China. |
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| Abstract: | Morin was used as a pre-column reagent for the determination of aluminum by RP-HPLC with fluorescence detection. This method has been successfully applied to direct determination of trace Al in environmental and biological samples. The response was linear from 6 x 10(-9) to 6 x 10(-5) M with a detection limit of 2 x 10(-9) M. In addition, the different Al complexes with morin were separated by the proposed HPLC procedure and their coordination ratios were depicted by molar-ratio method. The results showed that 1:1 and 2:1 Al-morin complexes formed. |
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