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    • 4. 发明授权
    • Miniaturized solid-state reference electrode with self-diagnostic function
    • 具有自诊断功能的小型化固态参比电极
    • US06554982B1
    • 2003-04-29
    • US09889032
    • 2001-07-12
    • Jae Ho ShinSung Dong LeeHakhyun NamGeun Sig ChaByeong Woo Bae
    • Jae Ho ShinSung Dong LeeHakhyun NamGeun Sig ChaByeong Woo Bae
    • G01N27401
    • G01N27/301
    • The present invention relates to a reference electrode for a potentiometric electrode system, characterized in that the junction in contact with a sample solution is enlarged and an ion-sensitive membrane containing an ion selective material as a protective membrane for the inner reference solution is employed, which comprises a substrate; a metal layer; an insoluble metal salt layer; an insulating film for insulating the metal layer from an aqueous solution; a hydrogel serving as an inner reference solution; the junction on the hydrogel contacting with a sample solution; the ion-sensitive, protective membrane formed over all surface areas of the hydrogel, except for the junction, to separate the sample solution from the inner reference solution or act as an ion-sensing membrane upon the contamination of the junction, whereby the operational abnormality caused by junction contamination may be easily checked and fast activation may be achieved.
    • 本发明涉及一种用于电位电极系统的参考电极,其特征在于,与样品溶液接触的接合点被扩大,并且使用含有作为内部参比溶液的保护膜的离子选择性材料的离子敏感膜, 其包括基底; 金属层; 不溶性金属盐层; 用于将金属层与水溶液绝缘的绝缘膜; 作为内参照溶液的水凝胶; 水凝胶上的接头与样品溶液接触; 在水凝胶的所有表面区域之外形成的离子敏感的保护膜除了接合部分之外,以将样品溶液与内部参考溶液分离,或者当接合部被污染时用作离子感测膜,由此操作异常 可以容易地检查结点污染引起的并且可以实现快速激活。
    • 10. 发明授权
    • Microchip-based carbon dioxide gas sensor
    • 基于Microchip的二氧化碳气体传感器
    • US06746583B2
    • 2004-06-08
    • US09877857
    • 2001-06-08
    • Jae Seon LeeJae Ho ShinMin Hyung LeeHakhyun NamGeun Sig Cha
    • Jae Seon LeeJae Ho ShinMin Hyung LeeHakhyun NamGeun Sig Cha
    • G01N27327
    • G01N27/333G01N27/4162G01N33/004
    • There is provided a microchip-based differential-type carbon dioxide gas sensor for detecting dissolved carbon dioxide levels. It functions with at least one working electrode composed of an unbuffered hydrogel membrane containing a certain amount of sodium bicarbonate and a pH-sensitive gas-permeable membrane; and a reference electrode composed of a buffered hydrogel membrane and a pH-sensitive gas-permeable membrane. The unbuffered hydrogel membrane contains carbonic anhydrase, which reduces the time period for the hydration of carbon dioxide, thereby allowing the quick measurement of the level of carbon dioxide. In addition to being significantly improved in stabilization, sensing, and recovering time periods, the differential-type carbon dioxide gas sensor can be fabricated in small sizes and quickly measure levels of carbon dioxide dissolved in sample solution.
    • 提供了一种用于检测溶解二氧化碳水平的基于微芯片的差分式二氧化碳气体传感器。 它与至少一个由含有一定量碳酸氢钠和pH敏感性透气膜的无缓冲水凝胶膜组成的工作电极起作用; 以及由缓冲水凝胶膜和pH敏感性透气膜构成的参比电极。 无缓冲水凝胶膜含有碳酸酐酶,减少了二氧化碳水化的时间,从而可以快速测定二氧化碳的含量。 除了稳定化,感测和恢复时间段的显着改进之外,差分型二氧化碳气体传感器可以制造成小尺寸并且快速测量溶解在样品溶液中的二氧化碳的水平。