Detecting device and detection method of ion transmembrane migration number tracking

A technology of transmembrane migration and tracking detection, which is applied in the field of conductivity device, membrane potential, and ion migration number measurement, can solve the problems of methods and devices without ion transmembrane migration number, etc. Less solution and energy saving effect

Inactive Publication Date: 2011-03-30
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is still no simple, accurate and comprehensive method and device

Method used

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  • Detecting device and detection method of ion transmembrane migration number tracking
  • Detecting device and detection method of ion transmembrane migration number tracking
  • Detecting device and detection method of ion transmembrane migration number tracking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 Construction of tracking detection device for ion transmembrane migration number

[0047] as attached Figure 1~6 As shown, 1 is the liquid storage tank, 2 is the cover plate, 3 is the titanium electrode, 4 is the silver / silver chloride electrode, 5 is the electrode slot of the conductivity meter, 6 is the large partition, 7 is the nut, and 8 is waterproof Circle, 9 is a small partition, and 10 is a titanium electrode slot.

[0048] The invention is composed of a liquid storage tank 1, a cover plate 2, a titanium electrode 3, a silver / silver chloride electrode 4, a conductivity meter electrode slot 5, a separator 6, a nut 7, and a waterproof ring 8 are jointly connected. The interconnection relationship of each component is as follows: a large partition 6 is arranged in the middle of the liquid storage tank 1, and the large partition 6 divides the liquid storage tank 1 into left and right symmetrical liquid storage chambers. There is a through hole in the cen...

Embodiment 2

[0053] Embodiment 2 Application of the device of the present invention carries out the determination of the ion transfer number of the cation in the KCl solution across the egg membrane

[0054] The operation steps are as follows:

[0055] (1) Construct the ion transmembrane migration number tracking detection device described in Example 1;

[0056] (2) Put the film on the groove in the middle of the small partition, cover the waterproof ring, and fix the partition on the large partition in the middle of the liquid storage tank with nuts, so that the film is in the middle of the two partitions;

[0057] (3) Add the KCl solution submerged in the egg membrane in the left and right two liquid storage chambers of the liquid storage tank; measure the conductivity of the solution;

[0058] (4) Cover the cover and insert the electrode of the conductivity meter into the electrode slot of the conductivity meter;

[0059] (5) two silver / silver chloride electrodes are connected with th...

Embodiment 3

[0069] Embodiment 3 applies this device to carry out the mensuration of the ion migration number of cation crossing polyethylene membrane in KCl solution

[0070] Fix the polyethylene film in the device, add 60mL 0.01mmol / L and 10mmol / L KCl solution to the left and right liquid storage chambers respectively, and connect the conductivity meter, the electromotive force measuring device and the applied electric field electrode to the device to measure the The ion migration number of cations in potassium chloride solution across the polyethylene membrane under the action of electric field, 10μA constant current applied electric field, and -10μA constant current applied electric field;

[0071] Based on the measured data, draw the change curve of the conductivity of the two storage chambers. attached Figure 11 It is the relationship curve between the ion migration time across the polyethylene membrane and the conductivity of the bipolar compartment of 0.01mmol / L (a graph) and 10m...

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PUM

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Abstract

The invention discloses a device and a method for tracking and detecting ion transmembrane migration number. The device comprises a liquid storage tank, a cover plate, an electrode, a big separator board, a small separator and the like. All the components have the following mutual connection relation: the cover plate and the liquid storage tank are connected with each other from top to down through clamping; a titanium electrode is fixed on a tank wall of the liquid storage tank through a slot; a silver/silver chloride electrode is fixed in the centre of the left and right parts of the cover plate; and the separators are connected with a separator of the liquid storage tank through a nut. The invention can be used for researching influence on ion migration by a film and ion selectivity of the film, and membranoid substances all can test the ion transmission performance of the film through the device, and can be applied to external electric field, thereby the device has the advantages of simple operation, low cost and strong comprehensive function.

Description

technical field [0001] The invention belongs to the technical field of electrochemical electrolyte solution, and in particular relates to a device and a measuring method for measuring ion transfer number, membrane potential and electrical conductivity. Background technique [0002] In the field of chemistry and electrochemistry, it is an important experimental operation in university physical chemistry to measure the number of ions in the electrolyte solution, the conductivity of the solution, and the electromotive force by simple and reliable testing methods. Electrolytic plating processes as well as biochemical reactions play an important role. [0003] At present, the main methods for determining ion migration number are: Hittoff method, interface movement method, and electromotive force method. The Hittorf method is a commonly used and traditional method for determining the number of ion transitions, but it needs to add a metal coulometer to measure the total amount of ...

Claims

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Application Information

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IPC IPC(8): G01N27/62G01N27/06G01N27/60G01N27/622
Inventor 卢淳杰许适当李红
Owner SOUTH CHINA NORMAL UNIVERSITY
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