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Copper detecting paper and preparing method thereof

A technology for testing test paper and filter paper, which can be used in biological testing, material inspection products, and analysis by chemical reaction of materials.

Inactive Publication Date: 2003-11-19
INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the detection of copper ions is very important. The existing copper analysis and detection methods mainly include polarography, atomic absorption spectrophotometry, and photometry. However, these methods are often limited by experimental conditions, and not only large instruments are required. At the same time, there are also the shortcomings of cumbersome operation, and the operator must have certain professional and technical knowledge in order to operate

Method used

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  • Copper detecting paper and preparing method thereof
  • Copper detecting paper and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Put the quantitative filter paper into 15g / L ethanol solution of sodium dithiocarbamate, soak it fully, take it out from the solution and dry it, then soak it in the aqueous solution of 500mg / L zinc nitrate, take it out after fully soaking, after drying, mix with The substrates are pasted together to make a copper detection test paper.

Embodiment 2

[0023] Put the quantitative filter paper into 20g / L sodium dithiocarbamate ethanol solution, soak it fully, take it out from the solution and dry it, then soak it in the aqueous solution of 470mg / L zinc chloride, take it out after fully soaking, and dry it , and paste together with the substrate to make a copper detection test paper.

Embodiment 3

[0025] Put the qualitative filter paper into 17g / L sodium dithiocarbamate ethanol solution, soak it fully, take it out from the solution and dry it, then soak it in the aqueous solution of 450mg / L zinc sulfate, take it out after fully soaking, after drying, mix with The substrates are pasted together to make a copper detection test paper.

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Abstract

A copper test paper comprises base plate and colour display paper which is filter paper. The method to prepare the copper test paper includes the following steps: The said filter paper is placed into the solution of 15-20 g / L dithioazyl-sodium formate alcohol to be sufficiently soaked, and then to take it out for drying; furthermore the filter paper is placed in solution of 450-510 mg / L zinc soluble salt water to be sufficiently soaked and then to take out for drying and the copper test paper can be obtained by sticking the prepared filter paper on the base plate.

Description

technical field [0001] The invention relates to a test paper for detecting divalent copper ions and a preparation method thereof. Background technique [0002] Copper is an essential trace element for animals and plants. Copper deficiency in the human body can cause anemia, diarrhea and other diseases, but excessive copper can also cause harm to humans, animals and plants. After the human body absorbs excessive copper, it can accumulate in the vital organs of the human body, such as liver, kidney, brain, etc., especially for some people with chromosomal recessive diseases, due to the dysfunction of bile excretion of copper, copper accumulates in the liver, causing liver Damaged, chronic and active hepatitis symptoms appear, when copper accumulates in the brain, it can cause neurological tissue lesions, cerebellar movement disorders and even Parkinson's syndrome. When copper is deposited in the proximal tubule, it can cause aminoaciduria, glyc...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01N33/52
Inventor 周焕英高志贤
Owner INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL
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