Abstract − Analytical Sciences, 22(8), 1129 (2006).
Determination of Ammonium Cations and Alkali and Alkaline Earth Metal Cations in Jellyfish by Capillary Zone Electrophoresis
Keiichi FUKUSHI,* Shinya MINAMI,* Motokazu KITAKATA,* Masaya NISHIJIMA,* Kuriko YOKOTA,** Sahori TAKEDA,*** and Shin-ichi WAKIDA***
*Faculty of Maritime Sciences, Kobe University, 5-1-1 Fukaeminami-machi, Higashinada, Kobe 658-0022, Japan
**Faculty of Crisis Management, Chiba Institute of Science, 3 Shiomi-cho, Choshi, Chiba 288-0025, Japan
***National Institute of Advanced Industrial Science and Technology (AIST), Midorigaoka, Ikeda, Osaka 563-8577, Japan
**Faculty of Crisis Management, Chiba Institute of Science, 3 Shiomi-cho, Choshi, Chiba 288-0025, Japan
***National Institute of Advanced Industrial Science and Technology (AIST), Midorigaoka, Ikeda, Osaka 563-8577, Japan
We developed a capillary zone electrophoresis method with indirect UV detection for determination of ammonium cations and alkali and alkaline earth metal cations in jellyfish. As the background electrolyte, a mixture of N-methylbenzylamine, citrate, and 18-crown-6 was used for the complete separation of all analyte cations. The limits of detection were 0.13 - 0.34 mg l-1 at a signal-to-noise ratio of three. The values of the relative standard deviation of peak area were 3.2 - 4.9%. The proposed method successfully determined the above analyte cations in jellyfish for approximately 4 min.
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