高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 237.

• Chromatography and Separation Sciences • 上一篇    下一篇

Separation and Transport of Lithium of 10-5 M in the Presence of Sodium Chloride Higher than 0.1 M

SUN Hai-Ping, Masaaki Tabata   

  1. Dept. of Chemistry, Faculty of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
  • 出版日期:1999-12-31 发布日期:1999-12-31

Separation and Transport of Lithium of 10-5 M in the Presence of Sodium Chloride Higher than 0.1 M

SUN Hai-Ping, Masaaki Tabata   

  1. Dept. of Chemistry, Faculty of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
  • Online:1999-12-31 Published:1999-12-31

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摘要：

Lithium is an important element for lithium battery and clinical treatment of manic depression. Thus,rapid and accurate methods for the determination of lithium and its separation and collection of lithium in recycle are receiving a great concern. Because of the high concentrations of Na+ in sea water and blood, very high Li+/Na+ selectivity is required for the separation and determination of Li+ at concentration less than 10-4 M (700 ppb) in a large excess of Na+. We report here the methods of separation, transport and determination of lithium as low as 10-5 M (M=mol dm-3) in the presence of Na+ more than 0.1 M by using a water-soluble octabromoporphyrin; H2P4-) synthesized in our laboratory.

Abstract:

Lithium is an important element for lithium battery and clinical treatment of manic depression. Thus,rapid and accurate methods for the determination of lithium and its separation and collection of lithium in recycle are receiving a great concern. Because of the high concentrations of Na+ in sea water and blood, very high Li+/Na+ selectivity is required for the separation and determination of Li+ at concentration less than 10-4 M (700 ppb) in a large excess of Na+. We report here the methods of separation, transport and determination of lithium as low as 10-5 M (M=mol dm-3) in the presence of Na+ more than 0.1 M by using a water-soluble octabromoporphyrin; H2P4-) synthesized in our laboratory.

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