Potentiometric flow-injection determination of boron by using a flow-through tetrafluoroborate ion-selective poly(vinyl chloride) membrane electrode |
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| Authors: | Toshihiko Imato Takeshi Yoshizuka Nobuhiko Ishibashi |
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| Affiliation: | Department of Applied Analytical Chemistry, Faculty of Engineering, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812 Japan |
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| Abstract: | A highly sensitive tetrafluoroborate ion-selective poly(vinyl chloride) membrane electrode was constructed and applied to a detector in the flow-injection determination of boron. Boron at the 10 ng ml?1 level can be determined by converting it to tetrafluoroborate ion in a flow of hydrofluoric acid. A sampling rate of 30 h?1 was achieved with a relative standard deviation of less than 2%. |
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