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Saccharin sodium concentration detection device and saccharin sodium concentration detection method

A technology of concentration detection and detection method, applied in the direction of electrochemical variables of materials, etc., can solve the problems of poor repeatability and low detection accuracy, and achieve the effects of fast speed, high detection accuracy, and improved detection accuracy.

Inactive Publication Date: 2015-03-25
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention of the present invention is to provide a high detection accuracy and fast detection device and detection method for the concentration of saccharin sodium in order to overcome the shortcomings of low detection accuracy and poor repeatability of detection methods in the prior art

Method used

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  • Saccharin sodium concentration detection device and saccharin sodium concentration detection method
  • Saccharin sodium concentration detection device and saccharin sodium concentration detection method
  • Saccharin sodium concentration detection device and saccharin sodium concentration detection method

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Experimental program
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Embodiment 1

[0055] Such as figure 1 , Figure 4 The shown embodiment is a kind of saccharin sodium concentration detection device, and the saccharin sodium concentration detection device is electrically connected with the electrochemical workstation 1; It comprises a controller 2, a storage device 3, a container 4 with an open upper end filled with liquid, and a container 4 arranged on the container The cover plate 5, the counter electrode 7 made of platinum material extending downwards on the cover plate, the stirring device 9 on the bottom of the container and the dropper for dripping sodium saccharin solution into the container on the cover plate The liquid funnel 10; the stirring device includes a horizontal stirring tube 14 connected to the rotating shaft of the waterproof motor, and the horizontal stirring tube is provided with several pairs of relatively arranged through holes 23; the horizontal stirring tube is provided with several axle centers connected with the horizontal stirr...

Embodiment 2

[0083]Embodiment 2 includes all the structures and steps of Embodiment 1, and also includes an alarm, and the electrical connection between the alarm and the controller; before step 100, the following electrode calibration steps are also included:

[0084] Step 710, insert 40ml of 0.1M NaOH into the first beaker, insert the working electrode and the counter electrode into the NaOH solution in the first beaker, and use the electrochemical workstation to perform cyclic voltammetry scanning, so that the excitation voltage of the working electrode is at -0.2 In the range of V-0.75V, it gradually increases first, and then gradually decreases, and the abscissa is the excitation voltage, and the ordinate is the curve of the current density, and the difference g between the maximum value and the minimum value of the current density is calculated;

[0085] Step 720, insert 0.1M NaOH and 0.1mM sodium saccharin into the second beaker sequentially according to the ratio of 3:2, and stir ev...

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Abstract

The invention discloses a saccharin sodium concentration detection device and a saccharin sodium concentration detection method. The saccharin sodium concentration detection device comprises a controller, a storage device, a container which is provided with an opening in the upper end and is capable of containing liquid, a cover plate which is arranged on the container, a counter electrode which is arranged on the cover plate, extends downwards and is made of a platinum material, an evolvent-shaped guide rail which is embedded into an opening in the lower end of the lower part of the cover plate, a rotating device which is arranged on the guide rail and can move along the guide rail, a stirring device which is arranged on the bottom of the container and a dropping funnel which is arranged on the cover plate and used for dropwise adding saccharin sodium solution into the container, wherein the counter electrode is connected with the cover plate through a first motor, one end of the guide rail is close to the first motor, and the other end of the guide rail is close to the edge of the cover plate. The saccharin sodium concentration detection device has characteristics of high detection precision, high speed, good stability and good repeatability.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a detection device and detection method for saccharin sodium concentration with high detection accuracy and fast speed. Background technique [0002] Existing sugar detection techniques include instrumental analysis and chemical detection. Although the instrumental analysis is simple to operate, it has the defect of low detection accuracy; the chemical detection has the disadvantages of cumbersome operation and poor repeatability. [0003] Chinese patent authorization publication number: CN103528877A, authorized publication date January 22, 2014, discloses a small biochemical reactor online sugar concentration detection system, including a touch screen, responsible for accepting the setting and operation of on-site personnel; two constant current Pump, responsible for diluting the reaction solution; 1 online sugar analyzer, responsible for online detection of sugar concent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48G01N27/30
Inventor 惠国华刘伟韩圆圆蔡艳萍
Owner ZHEJIANG GONGSHANG UNIVERSITY