摘要
研究了用色谱柱在线固相萃取富集 ,二极管矩阵检测器检测 ,反相液相色谱法测定水中铅、镉、汞和银的方法。水样中的铅、镉、汞和银用四 (对氨基苯基 ) 卟啉 (T4APP)柱前衍生后 ,样品通过富集柱富集 ,然后切换六通转换阀改变流向 ,用流动相反向洗脱让显色产物洗下并通过分析柱分离 ,用二极管矩阵检测器检测。该方法用于测定水样中低含量的铅、镉、汞和银 。
A new method for the on-line solid phase extraction followed by high performance liquid chromatographic determination of lead, cadmium and mercury were studied. Lead, cadmium and mercury was pre-column derived by (4-aminophenyl)-porphine (T(4)APP). These chelates can be extracted by Waters Xterra(TM) RP18 (3.9 min x 20 mm) chromatogram column and eluted by tetrahydrofuran and pH = 10 pyrrolidine-acetic acid buffer solution as mobile phase in reverse direction at a flow rate of 1.0 mL/min, then separated on a Waters Xterra(TM) RP18 chromatogram column (5 mum, 3.9 min x 150 mm) and monitored by photodiode array detector. This method can be applied to the determination of microamount of lead, cadmium, silver and mercury in water with satisfactory results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2004年第4期421-424,共4页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金 (No .2 9875 0 2 7
No .2 0 175 0 2 5 )
分析化学重点基金 (No .2 0 2 3 5 0 10 )
电分析化学国家重点实验室基金
"十五"科技攻关重大项目 (No .2 0 0 1BA2 10A0 4中的第七课题 )资助项目
