- 作者: 羅應霖 ; 劉岳霖 ; 黃承文
- 作者服務機構: 東海大學化學系
- 中文摘要: A high-performance liquid chromatography (HPLC) method has been developed for the analysis of dialkyltin compounds in polyvinyl chloride (PVC) materials. The PVC sample was first dissolved in tetrahydrofuran. Concentrated hydrochloric acid was then added to convert the dissolved dialkyltin stabilizers into the chloride forms, followed by extraction with hexane. The extracted dialkyltin chlorides were preconcentrated and were finally separated by HPLC. Separation was performed using a C/sub 18/ column and an eluent of aqueous methanol containing 8-hydroxyquinoline(oxine) as the complexing agent. Photometric detection of the dialkyltin-oxine complexes was carried out at 380nm. Under optimum experimental conditions, the detection limits for dimethyltin, dibutyltin and dioctyltin are 1.7ng, 2.1ng and 2.9ng (all as tin), respectively. Residual dialkyltin stabilizers in several commercially available PVC products were successfully analyzed via this method.
- 英文摘要: --
- 中文關鍵字: Dialkyltin Compounds; Hplc; Pvc Materials; Analysis
- 英文關鍵字: 二烴基錫化合物;高效能液相層析;聚氯乙烯材料;分析