反相高效液相色谱分离测定钌铑锇

反相高效液相色谱分离测定钌铑锇 REVERSED-PHASE HIGH-PERFORMANCE LIQID CHROMATOGRAPHIC SEPARATION AND DETERMINATION OF Ru（ Ⅲ ）,Rh（ Ⅲ ）AND Os（Ⅲ） 张华山 Zhang Huashan Shi Zidong Cheng Jieke 1 2 3 first-author 史自东 1 2 3 程介克 1 2 3 武汉大学化学系 武汉大学化学系 Department of Chemistry,Wuhan University Department of Chemistry,Wuhan University 湖北医药工业研究所 湖北医药工业研究所 武汉大学化学系湖北医药工业研究所 武汉大学化学系湖北医药工业研究所 以4-（2-苯并噻唑偶氮）间苯二酚为柱前衍生试剂,以含8 m mol·L -1 的四丁基溴化铵和20 m mol·L -1 pH 5.3的乙酸-乙酸钠缓冲溶液的甲醇-水（52:48,V/V）为流动相,于 C 8 柱上,25min 内,反相高效液相色谱分离测定了 Rh（Ⅲ）,Ru（Ⅲ）和 Os（Ⅲ）,检测波长560 nm,工作曲线范围分别是0.04～0.50,0.04～0.50和0.11～0.50 mg·L -1 ,当信噪比为2时,检出限分别为0.075,0.084和2.20 ng. 4-（2-Benzothiazolylazo）resorcinol（BTAR） was used as a pre-column chelating agent. The BTAR chelates of Ru（Ⅲ）,Rh（Ⅲ）and Os（Ⅷ） were eluted within 25rain with mobile phase of methanol-water （52:48） containing 8 m mol·L -1 tetrabutylammonium bromide（TBABr） and 20 m mol·L -1 pH 5.30 HAc-NaAc buffer on a C 8 column.Ru,Rh and Os were separated and deter- mined by reversed-phase high performance liguid chromatography with spectrophotometric detection at 540 nm.The calibration graphs were linear for 0.04～0.50 mg·L -1 of Ru（Ⅲ）and Rh（Ⅲ）,0.11 ～0.50 g·L -1 of Os（Ⅷ）.The detection limits were 0.075,0.084 and 2.20 ng when S/N was 2 for Ru （Ⅲ）,Rh（Ⅲ）and Os（Ⅷ） respectively.The proposed method was applied to the determination of added Ru,Rh and Os in palladium catalyst sample. 反相高效液相色谱 4-（2-苯并噻唑偶氮）间苯二酚 钌 铑 锇 reversed phase high performance liquid chromatography Ruthenium Rhodium Osmium 4-（2-benzothiazolylazo）resorcinol O54.64 国家自然科学基金资助的课题 1993-04-01 2021-04-01 4