Development of a micro-potentiometric sensor for the microchip analysis of alkali ions.
نویسندگان
چکیده
This paper reports on the development of a micro-potentiometric sensor based on external microelectrodes introduced into a microchip. We miniaturized reference and ion-selective electrodes (ISEs) and embedded them into a plastic (PDMS) microchip; the miniaturization of ISE was attained by using a monolithic capillary-based membrane. This sensor was applied to the detection of alkali ions (Na+, K+ and NH4+) in a microflow on the microg/L level.
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ورودعنوان ژورنال:
- Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
دوره 25 12 شماره
صفحات -
تاریخ انتشار 2009