摘要
用离子交换分析柱和二极管阵列检测器建立了水溶液中三价铬离子 [Cr(Ⅲ ) ]齐聚物的分析方法 ,研究了检测条件、流动相、离子强度对分析的影响 ,优化了分析条件。以 3mol/LNaClO4(内含 0 0 3mol/LHClO4)为流动相 ,在TSK GelSP 5PW离子交换分析柱 ( 75mm× 7 5mmi d ,10 μm)上对制备样品中的Cr(Ⅲ )齐聚物进行分离 ,以 2 0 0nm波长检测。该方法简便、快速 ,重复性好 ,10min内便可完成对制备样品中 3种Cr(Ⅲ )齐聚物的色谱分离。用该方法分析了各种制备条件下Cr(Ⅲ )齐聚物的含量 。
A method of analyzing chromium(Ⅲ) oligomers in aqueous solution by means of TSK Gel ion exchange analytical column and diode array detector was developed The effects of determination conditions, elution and ionic strength on analysis were investigated carefully and the analytical condition was optimized The samples were separated for 10 min by using TSK Gel SP 5PW(75 mm×7 5 mm i d , 10 μm) as column, 3 mol/L NaClO 4 0 03 mol/L HClO 4 as mobile phase, and detected at the wavelength of 200 nm The method was simple, rapid and repeatable This method was also used to determine the concentration of each fraction under various conditions of preparing chromium(Ⅲ) oligomers and rendering the optimized preparation parameters
出处
《色谱》
CAS
CSCD
北大核心
2001年第4期350-352,共3页
Chinese Journal of Chromatography
基金
国家重点基础研究发展规划项目 (课题编号为G19990 2 2 5 0 1)
