Di Benedetto L T, Dimitrakopoulos T, Farrell J R, Iles P J
Department of Physical Sciences, University of Tasmania, P.O. Box 1214, Launceston, Tas., 7250, Australia.
Talanta. 1997 Mar;44(3):349-56. doi: 10.1016/s0039-9140(96)02057-7.
A photo-cured membrane selective to calcium, based on the calcium bis [4-(1',1',3',3'-tetramethylbutyl)phenyl]phosphate ionophore and incorporating the lipophilic additive, potassium tetraki(4-chlorophenyl)borate, that can tolerate up to 200 nM perchlorate ionic background in the flow injection potentiometry mode has been previously reported (T. Dimitrakopoulos, J.R. Farrell and P.J. Ives, Electroanalysis, 8 (1996) 391). Improvements in the electrode slope and sensitivity of the previously described photo-cured calcium membrane-based electrode were achieved when anhydrous calcium chloride salt was dissolved into the pre-cured membrane composition and then photo-cured. Similar to the previously reported photo-cured calcium ion-selective electrode (ISE), the improved photo-cured calcium ISE can measure calcium in a high perchlorate background in the flow injection potentiometric mode.
基于双[4-(1',1',3',3'-四甲基丁基)苯基]磷酸钙离子载体并掺入亲脂性添加剂四(4-氯苯基)硼酸钾的光固化钙选择性膜，在流动注射电位法模式下可耐受高达200 nM的高氯酸根离子背景，此前已有报道（T. Dimitrakopoulos、J.R. Farrell和P.J. Ives，《电分析》，8 (1996) 391）。当将无水氯化钙盐溶解到预固化的膜组合物中然后进行光固化时，上述基于光固化钙膜的电极的电极斜率和灵敏度得到了改善。与先前报道的光固化钙离子选择性电极（ISE）类似，改进后的光固化钙ISE可以在流动注射电位法模式下在高氯酸根背景中测量钙。
