Electrochemical Determination of Boric Acid Using the Boric Acid - Tiron Complexation System

被引：13
|
作者：
Fujimori, Takao [1 ,3 ]
Akimoto, Hiroshi [1 ]
Tsuji, Yutaka [2 ]
Takehara, Ko [1 ]
Yoshimura, Kazuhisa [1 ]
机构：
[1] Kyushu Univ, Fac Sci, Dept Chem, Fukuoka 8128581, Japan
[2] Kurume Natl Coll Technol, Kurume, Fukuoka 8308555, Japan
[3] Japan Soc Promot Sci, Chiyoda Ku, Tokyo 1028472, Japan
来源：
ELECTROANALYSIS | 2010年 / 22卷 / 12期
关键词：
Boron determination; Tiron; Cyclic voltammetry; DPV; Phosphate buffer effect; DIFFERENTIAL-PULSE POLAROGRAPHY; ELECTROORGANIC SYNTHESIS; 3-SUBSTITUTED CATECHOLS; BORON REMOVAL; AZOMETHINE-H; VOLTAMMETRY; SPECIATION;
D O I：
10.1002/elan.200900562
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
For monitoring the boron concentration in reverse osmosis (RU) water produced by desalination plants, a voltammetric determination method for the amount of electrochemically inactive boron has been developed by using the complexation with 4,5-dihydroxybenzene-1,3-disulfonic acid (Tiron). Cyclic voltammetric measurements showed the oxidation peak of boric acid-Tiron 1:1 complex at 920 mV. This peak was successfully applied to the determination of boron in RU water with the LOD of 0.1 mg B dm(-3) by using differential pulse voltammetry. The redox and acid-dissociation behaviors of Tiron and its boron complex are found to depend on the properties of pH buffer reagent.
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页码：1337 / 1343
页数：7
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