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Hydrogen cyanide detection reagent and preparation method thereof

A technology for detecting reagents and hydrogen cyanide, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. It can solve the problem of increasing blank control values, low sensitivity, and inaccuracy and other issues, to achieve the effect of sensitive response, effective content and easy operation

Inactive Publication Date: 2015-09-23
DONGCHEN LEADER TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the detection method of hydrogen cyanide is mainly spectrophotometry, which uses alkaline solution to absorb, reacts with a series of compounds under weak acid conditions to form purple compounds, and then colorimetrically quantifies it. It has good operability, but the sensitivity is not high , needs to go through a series of reactions, and the value of the blank control is increased, which is not very accurate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A hydrogen cyanide detection reagent, comprising the following components in parts by mass:

[0020] 6 parts of sodium hydroxide, 10 parts of phenolic resin, 6 parts of acetone, 19 parts of methyl orange, 7 parts of picric acid, 5 parts of polyacrylate, 11 parts of ethanol and 15 parts of distilled water.

[0021] A preparation method of a hydrogen cyanide detection reagent, the preparation steps are as follows:

[0022] (1) Mix ether and distilled water together, then add other components, heat in a water bath at 75°C, stir evenly, and prepare a premix;

[0023] (2) Put the premix obtained in step (1) into a blender and mix until uniform to obtain a clarified mixed solution;

[0024] (3) Place the obtained clarified mixed solution in a vacuum for 24 hours, take it out, seal it, and obtain the hydrogen cyanide detection reagent.

[0025] The sensitivity of the reagent to hydrogen cyanide in the air was tested, and the results showed that the detection range of the hyd...

Embodiment 2

[0027] A hydrogen cyanide detection reagent, comprising the following components in parts by mass:

[0028] 3 parts of sodium hydroxide, 5 parts of phenolic resin, 3 parts of acetone, 9 parts of methyl orange, 3 parts of picric acid, 2 parts of polyacrylate, 6 parts of ethanol and 10 parts of distilled water.

[0029] A preparation method of a hydrogen cyanide detection reagent, the preparation steps are as follows:

[0030] (1) Mix ether and distilled water together, then add other components, heat in a water bath at 75°C, stir evenly, and prepare a premix;

[0031] (2) Put the premix obtained in step (1) into a blender and mix until uniform to obtain a clarified mixed solution;

[0032] (3) Place the obtained clarified mixed solution in a vacuum for 24 hours, take it out, seal it, and obtain the hydrogen cyanide detection reagent.

[0033] The sensitivity of the reagent to hydrogen cyanide in the air was tested, and the results showed that the detection range of the hydrog...

Embodiment 3

[0035] A hydrogen cyanide detection reagent, comprising the following components in parts by mass:

[0036] 4 parts of sodium hydroxide, 6 parts of phenolic resin, 4 parts of acetone, 11 parts of methyl orange, 4 parts of picric acid, 3 parts of polyacrylate, 6 parts of ethanol and 11 parts of distilled water.

[0037] A preparation method of a hydrogen cyanide detection reagent, the preparation steps are as follows:

[0038] (1) Mix ether and distilled water together, then add other components, heat in a water bath at 75°C, stir evenly, and prepare a premix;

[0039] (2) Put the premix obtained in step (1) into a blender and mix until uniform to obtain a clarified mixed solution;

[0040] (3) Place the obtained clarified mixed solution in a vacuum for 24 hours, take it out, seal it, and obtain the hydrogen cyanide detection reagent.

[0041] The sensitivity of the reagent to hydrogen cyanide in the air was tested, and the results showed that the detection range of the hydro...

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PUM

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Abstract

The invention discloses a hydrogen cyanide detection reagent and a preparation method thereof and belongs to the technical field of gas detection. The reagent includes the components including, by weights: 3 to 6 parts of sodium hydroxide, 5 to 10 parts of phenol resin, 3 to 6 parts of aceton, 9 to 19 parts of helianthin B, 3 to 7 parts of chrysolepic acid, 2 to 5 parts of polyacrylate, 6 to 11 parts of ethanol and 10 to 15 parts of distilled water. The method includes the steps of 1, preparing a premix liquid; 2, obtaining a clear premix liquid; 3, standing for 12 to 48 hours in vacuum, sealing, and obtaining the hydrogen cyanide detection reagent. The obtained hydrogen cyanide detection reagent has the advantages of high reaction flexibility and accuracy, the content of hydrogen cyanide can be detected effectively, and the damage can be reduced.

Description

technical field [0001] The invention belongs to the technical field of gas detection, in particular to a hydrogen cyanide detection reagent and a preparation method thereof. Background technique [0002] Hydrogen cyanide is a colorless gas with a slight bitter almond smell. When the content of hydrogen cyanide in the air reaches 5.6% to 12.8%, it is explosive. Its vapor burns with a blue flame. When there is hydrogen cyanide in the air, it turns blue when measured with benzidine-copper acetate test paper, and changes from orange to pink when measured with methyl orange-mercuric chloride (II) test paper. The picric acid-sodium carbonate test paper changes from yellow to brown. [0003] Hydrogen cyanide is a highly toxic substance that can enter the human body through the digestive tract, respiratory tract, skin, and mucous membranes. The clinical manifestations of acute hydrogen cyanide poisoning are the obvious bitter almond smell in the exhaled breath of the patient. Mild...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 熊开胜张海防谢建庭
Owner DONGCHEN LEADER TESTING
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