- 作者: 黃承文 ; 蔡文立
- 作者服務機構: 東海大學化學系
- 中文摘要: High-performance liquid chromatography (HPLC) coupled with the reverse-pulse amperometric (RPA) detection method has been developed for the analysis of triorganotin compounds in aqueous solutions. The major advantage of RPA vs. conventional amperometric detection is its 'in situ' elimination of interference from dissolved oxygen in the chromatographic eluent; therefore, no extra chemicals or apparatus are required for oxygen removal. With a Partisil-10 SCX column and an eluent of methanol/0.01 M sodium acetate buffer (70:30,pH 5,5), the four triorganotins, viz., trimethyl-, triethyl-, tripropyl-, and tributyltin, can be totally separated. Detection by RPA was performed with a static dropping mercury electrode with an initial potential of -1.15 V and a final potential of+0.15 V. The absolute detection limit (S/N=3) ranged from 12ng of tributyltin (as tin) to 0.3.mu.g of trimethyltin (as tin). applications of the method to the analysis of trace tributyltin in marine antifoulant leachate and sea water are described.
- 英文摘要: --
- 中文關鍵字: Triorganotin; Hplc; Reverse-Pulse Amperometric Detection
- 英文關鍵字: 三有機錫;高效能液相層析法;逆向脈衝電流偵測