申请人:ADVANCED MONITORING SYSTEMS LTD.
公开号:US20020038762A1
公开(公告)日:2002-04-04
The present invention relates to solid-state ion selective electrodes (ISEs), methods of producing same and devices containing same. The electrodes include: (a) an internal reference element which includes a homogenous conducting body; (b) a solid contact which includes a hydrophobic polymer, an ionophore and particles of conductive material and (c) an ion selective membrane which includes a hydrophobic polymer and an ionophore. The particles of conductive material are dispersed throughout the hydrophobic polymer of the solid contact.
The method includes a the steps of: (a) providing an internal reference element which includes a homogenous conducting body; (b) preparing an emulsion which includes a hydrophobic polymer, an ionophore, particles of conductive material, and an organic solvent; (c) applying emulsion to the reference element and allowing the organic solvent to evaporate thereby causing a residue of the emulsion to form a solid contact adhering the reference element; (d) preparing a solution which includes ahydrophobic polymer, an ionophore and an organic solvent; and (e) applying the solution the solid contact and allowing the organic solvent to evaporate to form an ion selective membrane adhering the solid contact.
本发明涉及固态离子选择电极 (ISE)、其生产方法以及含有该电极的设备。电极包括(a) 内部参比元件,包括均质导电体;(b) 固体接触,包括疏水性聚合物、离子团和导电材料颗粒;(c) 离子选择膜,包括疏水性聚合物和离子团。导电材料颗粒分散在固体接触的疏水聚合物中。
该方法包括以下步骤(a) 提供内部基准元件,其中包括均质导电体; (b) 制备乳液,其中包括疏水性聚合物、离子促进剂、导电材料颗粒和有机溶剂; (c) 将乳液涂抹在基准元件上,让有机溶剂蒸发,从而使乳液的残留物形成附着在基准元件上的固体触点;(d) 制备一种溶液,其中包括疏水性聚合物、离子亲和剂和有机溶剂;以及 (e) 将溶液涂抹在固体接触上,让有机溶剂蒸发,以形成粘附在固体接触上的离子选择膜。