Card type detection device for rapidly detecting concentration of cyanide and detection method thereof

A technology of detection device and detection method, which is applied in the direction of measurement device, material analysis by electromagnetic means, instrument, etc., can solve the problems of complicated operation of detection method, expensive detection instrument, unable to meet quantitative analysis, etc., so as to facilitate rapid detection in the field. , The effect of fast detection speed and simple structure

Inactive Publication Date: 2010-02-17
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there are many kinds of cyanide detection devices and related detection methods researched at home and abroad, such as gas chromatography, ion chromatography, spectrophotometry, electrode method, etc. Although the characteristics of the above-mentioned various detection methods are not the same, the overall Generally speaking, there are many problems in the existing cyanide detection technology, which are mainly manifested in the following five aspects: 1. The detection equipment is expensive and the cost is too high, which is not conducive to large-scale promotion
2. The instrument probes (such as ion-selective electrodes) used in the detection are reused, which will cause cross-contamination
3. The detection method is cumbersome, time-consuming and labor-intensive, and the lengthy manual operation will cause large errors in the experimental results
4. The testing sites are all in the laboratory, and online testing cannot be performed in the wild
5. The test paper rapid detection method can only provide qualitative results and cannot meet the requirements of quantitative analysis

Method used

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  • Card type detection device for rapidly detecting concentration of cyanide and detection method thereof
  • Card type detection device for rapidly detecting concentration of cyanide and detection method thereof
  • Card type detection device for rapidly detecting concentration of cyanide and detection method thereof

Examples

Experimental program
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Embodiment 1

[0039] Such as figure 1 , figure 2 and image 3 As shown, the card-type detection device for rapid detection of cyanide concentration in the present invention includes a base plate 1 that is movably installed on the test panel 4 of the dry electrolyte analyzer, a lower cover 2 installed on the base plate 1, and a button mounted on the lower cover 2 The upper cover 3 directly above, the lower cover 2 and the upper cover 3 are correspondingly opened with a plurality of test holes 5 connected up and down and the number of test holes 5 is not less than three, and any three of the plurality of test holes 5 The inner cavities of the test holes 5 are connected by a plurality of salt bridges 6 arranged on the lower cover 2 and / or the upper cover 3 . A graphite layer 7 is inlaid on the inner walls of the three testing holes 5 .

[0040] In this embodiment, the number of the test holes 5 is four and the four test holes 5 are distributed in a "field" shape, the test holes 5 are round...

Embodiment 2

[0051] In this embodiment, the difference from Example 1 is: when preparing the sensitive membrane solution, firstly add 0.022g potassium ferricyanide and 0.044g PVC powder into the reagent bottle, then add 5.4ml tetrahydrofuran to the reagent bottle, and then After covering the upper cover of the reagent bottle and fully shaking the mixed solution contained in the reagent bottle, the whole preparation process of the sensitive membrane solution is completed. The structure, detection steps and principles of the rest are the same as those in Example 1.

[0052] Example 2

[0053] In this embodiment, the difference from Example 1 is that when preparing the sensitive membrane liquid, firstly add 0.025g potassium ferricyanide and 0.050g PVC powder into the reagent bottle, then add 6ml tetrahydrofuran to the reagent bottle, and then add After the upper cover of the reagent bottle is closed, the mixed solution contained in the reagent bottle is fully shaken, and the whole preparatio...

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Abstract

The invention discloses a card type detection device for rapidly detecting the concentration of cyanide and a detection method thereof, wherein, the detection device comprises a base plate arranged on a test panel of a dry electrolyte analyzer, a lower cover arranged on the base plate and an upper cover fastened on the lower cover; the upper cover and the lower cover are provided with a pluralityof test holes which are communicated up and down and the inner chambers of any three of a plurality of test holes are connected by salt bridges. The detection method comprises the following steps: carrying out electrode modification on a graphite layer embedded in the three test holes, starting the dry electrolyte analyzer and warming up for 25 min to 35 min, fixing the card type detection deviceon the test panel, adding by dropwise the cyanide solution to be detected in the test holes till full and pressing a test key, therefore, the cyanide concentration can be read when the test data are stable. The invention has the advantages of reasonable design, low cost, convenient operation and use, and high speed and precision of detection and can solve a plurality of problems of existing cyanide detection device and detection method.

Description

technical field [0001] The invention belongs to the technical field of cyanide concentration detection, in particular to a card-type detection device and a detection method for rapidly detecting cyanide concentration. Background technique [0002] At present, there are many kinds of cyanide detection devices and related detection methods researched at home and abroad, such as gas chromatography, ion chromatography, spectrophotometry, electrode method, etc. Although the characteristics of the above-mentioned various detection methods are not the same, the overall Generally speaking, there are many problems in the existing cyanide detection technology, mainly in the following five aspects: 1, the detection instrument is expensive, and the cost is too high, which is not conducive to large-scale promotion. 2. The instrument probes (such as ion-selective electrodes) used in the detection are reused, so cross-contamination will occur. 3. The operation of the detection method is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/403G01N27/406
Inventor 奚泽民应金美朱丁然杨海龙
Owner CHANGAN UNIV
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