- 作者: 劉德權 ; 樓元琪 ; 黃承文
- 作者服務機構: 東海大學化學系
- 中文摘要: A gas chromatography-atomic absorption spectrometric(GC-AAS) method has been developed for the determination of trace butyltin compounds in sea water. Aqueous butyltin compounds were reduced to the volatile hydride forms by NaBH/sub 4/ and were extracted with dichloromethane simultaneously. The dichloromethane extract was concentrated under reduced pressure, followed by direct injection into the GC-AAS system for analysis. The butyltin species were separated with a 2-m glass column packed with 2% OV-101 on Chromosorb G HP(100-120 mesh). Following GC separation, each species was transferred into an electrothermally heated(800.degree.C) quartz furnace for atomization. The tin atoms produced from individual butyltin compound were detected at 224.6nm by an atomic absorption spectrometer. With a sea water sample (1L), the detection limits (3.sigma.) for monobutyltin, dibutyltin and tributyltin were approximately 20, 20 and 70ng Sn L/sup -1/, respectively. The method has been applied to the analysis of trace butyltin compounds in the sea water of Keelung Harbor.
- 英文摘要: --
- 中文關鍵字: Butyltin Compound; Sea Water; Gas Chromatography-Atomic Absorption Spectrometry (Gc-Aas); Chemical Oceanography
- 英文關鍵字: 丁基錫化合物;海水;氣相層析原子吸收光譜;海洋化學