A kind of cyanide ion fluorescence detection test paper modified by pillar aromatics and its preparation method and detection method

A technology of fluorescence detection and column aromatics, which is applied in fluorescence/phosphorescence, measuring device, material analysis by optical means, etc. It can solve the problem that cyanide ion concentration cannot be quantitatively judged, and achieve the effect of fast response speed.

Active Publication Date: 2021-03-30
WUHAN INSTITUTE OF TECHNOLOGY
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  • Application Information

AI Technical Summary

Problems solved by technology

Considering the advantages of low price, degradable, and easy regeneration of fiber paper materials, it is a simple and easy method to select filter paper as the solid carrier of the fluorescence sensor and make cyanide detection paper, but the existing detection paper can only Qualitative detection of cyanide ion, the concentration of cyanide ion cannot be quantitatively judged

Method used

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  • A kind of cyanide ion fluorescence detection test paper modified by pillar aromatics and its preparation method and detection method
  • A kind of cyanide ion fluorescence detection test paper modified by pillar aromatics and its preparation method and detection method
  • A kind of cyanide ion fluorescence detection test paper modified by pillar aromatics and its preparation method and detection method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A column aromatic hydrocarbon modified cyanide fluorescence detection paper, the specific preparation method is as follows:

[0030] 1) Oxidation of the test paper: use THF, acetone, purified water to clean with THF, acetone, purified water, soak at 0.1 m, aqueous metho aqueous solution of 5 hours, and add 20 ml of B. Diol, continued to react 1 h, wash to wash with water to dry the excess ethylene glycol, dry it.

[0031] 2) Column aromatic hydrocarbon function of the test strip: Immerse the oxidation of a column aromatic hydrocarbon THF solution, impregnated at 50 ° C for 10 h, then sequentially with THF, methanol ultrasound cleaning filter paper, and then immersed the filter paper after cleaning 0.5 M The borohydride solution of sodium methanol, impregnated at 20 ° C for 1 h, washed with methanol, and drying it.

[0032] 3) Fluorescent indicator of the test paper fixed: Soak the column aromatic functional group of filter paper in 0.05 m 10-methyl acridine solution (tetrah...

Embodiment 2

[0035] A column aromatic hydrocarbon modified cyanide fluorescence detection paper, the specific preparation method is as follows:

[0036] 1) Oxidation of the test strip: Oxidation of the test strip with the same method as in Example 1);

[0037] 2) Column aromatic hydrocarbon function of the test strip: Immerse the oxidation of 0.02 m column aromatic hydrocarbon dichloromethane / methanol (volume ratio 2: 1) solution, at 70 ° C for 15 h, dichloromethane, methanol ultrasound cleaning filter paper, The cleaning filtered filter paper was immersed in a solution of a sodium borohydride solution, reacted at 30 ° C for 3 h, washing with methanol, drying to be used.

[0038] 3) Fluorescence indicator of the test paper fixed: immersed the column aromatic functional grouping filter paper in 0.01 m 10-methyl acridine solution (solvent is tetrahydrofuran), at 30 ° C for 5 h, washed with tetrahydrofuran ultrasound, dry to dry .

[0039] The resulting test strips were soaked in a hydrazine so...

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Abstract

The invention relates to a pillararene modification cyanide ion fluorescence detection test paper and a preparation method thereof and a detection method thereof. The cyanide ion fluorescence detection test paper is oxidized by the filter paper and placed in the pillararene solution for immersion treatment, then immersed in the sodium borohydride solution after washing, washed, dried, and then immersed in the 10-methyl acridine solution, after cleaning and drying, cyanide ions used for detecting the 10-3~10-7M concentration range are obtained. The method is advantaged in that the cyanide ion fluorescence detection test paper is used for detecting the cyanide ion concentration in the solution, the to-be-detected solution is dropped to the test paper for detection, through observing change of fluorescence intensity on the test paper, the cyanide ion concentration can be quantitatively detected through naked eyes, the response speed is fast, the result can be rapidly determined, and the cyanide ion concentration in the solution can be simply, conveniently, rapidly and economically detected.

Description

Technical field [0001] The present invention belongs to the field of environmental detection, and more particularly to a column aromatic hydrocarbon modified cyanide fluorescence detection test strip and a preparation method thereof, a detection method. Background technique [0002] Cyanide is a highly toxic substance, which is used in industrial production such as electroplating, petrochemical, gold mine and metallurgy. Cyanide ion (CN - ) The stable complex is formed into the human body by inhalation or skin, and the hemorrhee breathing chain is bonded, then the mitochondrial breathing chain is suppressed, allowing the cell hypoxia to have an oxygen metabolism, and the accumulation of lactic acid in the blood. Finally, hypoxia and lactic acid poisoning are disturbed the central nervous system, causing human breathing to stop and dying. Cyanides will cause serious harm to the environment and the human body whether the leaks in industrial production or the weapon of terrorist att...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64
CPCG01N21/6428
Inventor 刘慧胡甘霖沈建明
Owner WUHAN INSTITUTE OF TECHNOLOGY
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