LIX type microelectrode array device and preparation method thereof

Abstract

The invention discloses a LIX type microelectrode array device. The device comprises a top cover, a cavity, a LIX type microelectrode array and a microelectrode placing frame, wherein the cavity is connected with both the top cover and the microelectrode placing frame; a second conducting pad is connected with the microelectrode placing frame; a first conducting pad is connected with the top cover; a lead of an external micro voltmeter passes through the top cover, the first conducting pad and a conducting strip; a lead of the LIX type microelectrode and the lead of the external micro voltmeter are distributed on the second conducting pad; and the second conducting pad is fixedly connected with the conducting strip. The invention further discloses a preparation method of the LIX type microelectrode array device. The LIX type microelectrode array device is light in volume, stable in performance, high in sensitivity, good in correctness and rapid in response, is capable of greatly improving the condition of instable signal drift in conventional LIX microelectrode measurement and effectively stabilizing the electric signals of ions when LIX microelectrodes measure environmental matrixes, and is widely applied in the field of environmental microorganism research and environmental monitoring.

Description

technical field [0001] The invention belongs to the technical field of environmental microorganisms and environmental monitoring, and in particular relates to a LIX type micro-electrode array device and a preparation method thereof. Background technique [0002] In recent decades, the application of microelectrode as a microsensor in the direction of electrochemical measurement has become a newly developed measurement technology. Because the tip of the microelectrode is tiny (usually tens of microns or even several microns), and the microsensor is at this scale. It can show good electrochemical performance, not only can measure the concentration level of substances in the micron level, but also the signal has the characteristics of high sensitivity. In recent years, with the widespread use of chemical materials, the technology of combining LIX (ion selective permeation) membranes with microelectrodes has attracted more and more attention from researchers. [0003] The micro...

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Problems solved by technology

[0004] The determination method of LIX microelectrodes has high sensitivity and low detection limit, but the signal stability is poor, and the electrochemical signals generated are easily interfered by noise and electromagnetic radiation, which affects the accuracy of the determination. In addition, LIX microelectrodes are used in the determination. It is common for tip LIX membranes to fall off as the use time and frequency prolong, resulting in the phenomenon that the electrochemical signal break cannot be measured.

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