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Card type potassium ion sensor and method for preparing card type potassium ion sensor

A potassium ion, card-type technology, applied in the field of card-type potassium ion sensor and its preparation, can solve the problems of not being easy to carry, time-consuming detection, etc., and achieve the effects of short detection time, reduced production cost, and less test solution volume

Active Publication Date: 2013-12-04
深圳市希莱恒医用电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a novel card-type potassium ion sensor to solve the problems of uneasy portability and time-consuming detection caused by the separation of the selective electrode and the external reference electrode of the existing traditional potassium ion concentration detection.

Method used

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  • Card type potassium ion sensor and method for preparing card type potassium ion sensor
  • Card type potassium ion sensor and method for preparing card type potassium ion sensor
  • Card type potassium ion sensor and method for preparing card type potassium ion sensor

Examples

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Effect test

Embodiment 1

[0043] A card type potassium ion sensor, such as figure 1 , figure 2As shown, the card-type potassium ion sensor of the present invention includes a base plate 1, a potassium ion selective electrode 2, an insulating layer 3, and a salt bridge 4, and two potassium ion selective electrodes are arranged in parallel on the base plate 1, and the potassium ion The selective electrode 2 comprises an electrode base system 20, an electrolyte layer 21, and a potassium ion-sensitive membrane 22. The electrode base system 20 consists of a reaction electrode 201 on the base plate 1, a contact electrode 202 and a conductive lead 203 connecting the two electrodes. The electrolyte layer 21 is located on the reaction electrode 201 of the electrode base system, and the potassium ion sensitive film 22 surrounds the electrolyte layer 21; the potassium ion sensitive film 22 is coated with an insulating layer 3, and the insulating layer 3 is provided with potassium The exposed opening of the ion ...

Embodiment 2

[0060] The preparation method of a kind of card type potassium ion sensor of the present invention:

[0061] (1) The silver printing material is printed on the polypropylene base plate by screen printing technology to form the reaction electrode of the potassium ion selective electrode; the platinum printing material is printed on the polypropylene base plate by screen printing technology to form a reaction electrode connected to the reaction electrode. conductive leads and contact electrodes;

[0062] (2) Use absolute ethanol to scrub the surface of the reaction electrode, and then wipe it clean;

[0063] (3) Soak the reaction electrode in a potassium permanganate solution with a mass percentage of 15% for 20 minutes, oxidize the surface, rinse it with purified water after treatment, and dry it in an oven at 80°C;

[0064] (4) Dipotassium hydrogen phosphate (K 2 HPO 4 , Shanghai Sinopharm Group) dissolved in purified water to form a solution with a concentration of 3.0mM. ...

Embodiment 3

[0072] The preparation method of the card type potassium ion sensor, the steps are as follows:

[0073] (1) The silver printing material is printed on the polypropylene base plate by screen printing technology to form the reaction electrode of the potassium ion selective electrode; the platinum printing material is printed on the polypropylene base plate by screen printing technology to form a reaction electrode connected to the reaction electrode. conductive leads and contact electrodes;

[0074] (2) Use absolute ethanol to scrub the surface of the reaction electrode, and then wipe it clean;

[0075] (3) Soak the reaction electrode in a potassium permanganate solution with a mass percentage of 15% for 20 minutes, oxidize the surface, rinse it with purified water after treatment, and dry it in an oven at 80°C;

[0076] (4) Potassium carbonate (K 2 CO 3 , Shanghai Sinopharm Group) dissolved in purified water to form a solution with a concentration of 4.5mM. After completely ...

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Abstract

The invention relates to the technical field of electrochemical sensors, in particular to a card type potassium ion sensor and a method for preparing the card type potassium ion sensor. The sensor comprises a base plate (1), two potassium ion selective electrodes (2) arranged on the base plate (1) in parallel, an insulation layer (3) and a salt bridge (4). Each potassium ion selective electrode (2) comprises an electrode substrate system (20), an electrolyte layer (21) and a potassium ion sensitive membrane (22), wherein each electrode substrate system (20) is composed of a reaction electrode (201), a contact electrode (202) and a conductive wire (203), the reaction electrodes (201) and the contact electrodes (202) are arranged on the base plate (1), and the conductive wires (203) are connected with the reaction electrodes (201) and the contact electrodes (202). The electrolyte layers (21) are arranged on the reaction electrodes (201) of the electrode substrate systems (20), and the potassium ion sensitive membranes (22) surround the electrolyte layers (21). The sensor is convenient to carry, and has the advantages of being easy to operate, rapid in response and stable in work.

Description

technical field [0001] The invention relates to the technical field of electrochemical sensors, in particular to a card-type potassium ion sensor and a preparation method thereof. [0002] Background technique [0003] Potassium is an indispensable constant element in the human body, and the average adult body contains about 150 grams of potassium. The role of potassium in the human body is to maintain the normal function of nerves and muscles, to maintain the normal osmotic pressure and acid-base balance of the body, to participate in the metabolism of sugar and protein, and to ensure the normal function of neuromuscular. Potassium deficiency in the human body can lead to acid-base balance disorders, metabolic disorders, and muscle weakness. therefore. The detection of potassium ions has a wide range of applications in many fields such as medicine, biochemistry, pharmacy, chemical industry, environmental protection and food, especially the detection of potassium ions in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/333
Inventor 刘辉
Owner 深圳市希莱恒医用电子有限公司
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