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.
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[0020] Example 1:
[0021] Put the quantitative filter paper into a 15g / L sodium dithiocarbamate ethanol solution, fully soak it, take it from the solution and dry it, then soak it in a 500mg / L zinc nitrate aqueous solution, take it out after it is fully soaked, and dry it with The substrates are glued together to make a copper test paper.
Example Embodiment
[0022] Example 2:
[0023] Put the quantitative filter paper into a 20g / L sodium dithiocarbamate ethanol solution, fully soak it, take it from the solution and dry it, then soak it in an aqueous solution of 470mg / L zinc chloride, take it out after it is fully soaked, and dry it. , Pasted with the substrate to make a copper test paper.
Example Embodiment
[0024] Example 3:
[0025] Put the qualitative filter paper into a 17g / L sodium dithiocarbamate ethanol solution, fully soak it, take it from the solution and dry it, then soak it in a 450mg / L zinc sulfate aqueous solution, take it out after it is fully soaked, and dry it with The substrates are glued together to make a copper test paper.
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