• 作者： 陸德彰 ; 黃承文
• 作者服務機構： 東海大學化學系
• 中文摘要： Use of a gas chromatograph with a flame-photometric detector (GC-FPD) is described to determine butyltin compounds in sea water. The butyltins in an acidified water sample (pH 3.0) are first complexed with tropolone, followed by solid-phase extraction (SPE) with a tropolone-treated C/sub 18/ cartridge. HCl at a small concentration is then added to the concentrated SPE eluate before GC analysis. This procedure is simple and off-column derivatization of analytes is not required. The organotins, viz. mono-, di- and tributyltin, are separated as their respective chlorides on a capillary column (HP-1) and are detected with a flame- photometric detector and an interference filter at 610nm. Recoveries of the three butyltin species are quantitative(>90%). Based on a sea water sample 200mL, the detection limits for mono-, di- and tributyltin are 6,4 and 3ng tin/L, respectively. This method is applied to analysis of trace butyltins in various samples of sea water.
• 英文摘要： --
• 中文關鍵字： Butyltin Chloride; Sea Water; Gas Chromatography (Gc); Flame Photometric Detection; Solid Phase Extraction
• 英文關鍵字： 丁錫氯化物；海水；氣相層析；火焰光度偵測；固相萃取