Concentration of Heavy Metals by High-Speed Countercurrent Chromatography
作者:
E. Kitazume,
N. Sato,
Y. Ito,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 1998)
卷期:
Volume 21,
issue 1-2
页码: 251-261
ISSN:1082-6076
年代: 1998
DOI:10.1080/10826079808001953
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Application of high-speed countercurrent chromatography (HSCCC) to the concentration of metal ions has been studied. The stationary phase, containing di(2-ethylhexyl) phosphoric acid (DEHPA) in n-heptane, was continuously fed into the column. The ppb level of metal ions in a 500 mL of the mobile phase was continuously concentrated into small volumes of the stationary phase retained in the column. Concentrated metal ions were eluted with nitric acid and determined by the emission intensity with a direct current plasma atomic emission spectrometer (DCP-AES). The recoveries of Ca, Cd, Mg, Mn, Pb and Zn ranged over 88% at a concentration of 10 ppb each in 500 mL of the sample solution. Versatility of the present method was further demonstrated in determination of trace metals in tap water and deionized water.
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