CN1189737C - Copper detecting paper and preparing method thereof - Google Patents
Copper detecting paper and preparing method thereof Download PDFInfo
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- CN1189737C CN1189737C CNB031191053A CN03119105A CN1189737C CN 1189737 C CN1189737 C CN 1189737C CN B031191053 A CNB031191053 A CN B031191053A CN 03119105 A CN03119105 A CN 03119105A CN 1189737 C CN1189737 C CN 1189737C
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Abstract
The present invention discloses test paper and a preparing method thereof for detecting copper. The test paper for detecting copper comprises a base board and a chromogenic paper sheet, wherein the chromogenic paper sheet is prepared by that filter paper is sufficiently immersed in sodium dithiocarbamate ethanol solution, and the immersed filter paper is dried after being taken out from the solutuon; the prepared filter paper is immersed in the water solution of soluble zinc salt, and the immersed filter paper is dried after being taken out from the solution. The chromogenic paper sheet is fixedly connected with the base board. The preparing method for the test paper for detecting copper comprises the following steps: the filter paper is put in 15 to 20 g/L of sodium dithiocarbamate ethanol solution to be sufficiently immersed, and the immersed filter paper is dried after being taken out from the solution; the filter paper is immersed in 450 to 510 mg/L of the water solution of soluble zinc salt, and the immersed filter paper is taken out to be dried after being sufficiently immersed; the filter paper is bonded on the base board, and the test paper for detecting copper is prepared. The test paper has the characteristics of simple fabrication, portability, simple operation, high detecting speed, definite selectivity, accuracy, sensitivity, etc., and the test paper is particularly suitable for spot rapid detection.
Description
Technical field
The present invention relates to a kind of test paper and preparation method who detects bivalent cupric ion.
Background technology
Copper is the necessary trace elements of animal and plant.Human body lacks copper can cause diseases such as anaemia, diarrhoea, but excessive copper also can work the mischief to people and animal and plant.Behind the excessive copper of absorption of human body, can accumulate in the human body vitals, as liver, kidney, brain etc., particularly some suffers from the people of chromosome latent disease, because the dysfunction of bile excretion copper, copper is accumulated in liver, cause that liver damages, and chronic, active hepatitis symptom occurs, when copper is accumulated in brain, can cause nervous tissue pathological change, the cerebellum motor disorder occur even parkinsonism occurs.When copper is deposited on proximal tubule, then can cause acidaminuria, glycosuria, albuminuria, ceramuria and lithuria.When copper is deposited on around the cornea, iron rust sample ring appears on descemet's membrane, influence the normal function of eyes.Contain copper mostly in the waste water that metal mine exploitation, metallurgy, metal processing, machine-building, organic synthesis and other industry are produced, wherein the highest with cupric in metal processing, the effluent of institute of plating factory, every liter of waste water cupric tens is to the hundreds of milligram.When copper content reaches 0.01mg/L in the water body self-purification of water there is the obvious suppression effect; Surpass 3mg/L, can produce peculiar smell; Surpass 15mg/L, just can't drink.If use the copper-containing wastewater irrigated farmland, copper accumulates in soil and crops, can be to crops, and particularly unfavorable to paddy rice and barley growth, and can pollute grain.Therefore the detection to copper ion just seems very important, the analyzing detecting method of existing copper mainly contains polarography, atomic absorption spectrophotometry, photometry, but these methods, often be subjected to the restriction of experiment condition, not only need large-scale instrument, also there is the deficiency of complex operation simultaneously, and requires operating personnel must have certain specialized technical knowledge, could operate.
Summary of the invention
The purpose of this invention is to provide a kind of copper and detect test paper and preparation method thereof.It can simple, fast mensuration copper ions sample, the mensuration of copper ion is become simply, convenient, and the layman also can operate.
Technical scheme of the present invention is summarized as follows:
A kind of copper detects test paper, comprise substrate, it also comprises the colour developing scraps of paper, the described colour developing scraps of paper are that filter paper takes out after the nabam ethanolic solution fully soaks into, after waiting to do, take out behind the solution immersion of the soluble-salt of zinc, make after the drying, the described colour developing scraps of paper are fixedlyed connected with described substrate.
Described substrate is a sheet plastic, and described sheet plastic is preferably white.
Described filter paper is quantitative filter paper or qualitative filter paper.
A kind of copper detects the preparation method of test paper, and it comprises the steps;
(1) filter paper is put into the nabam ethanolic solution of 15-20g/L, fully soaked into, it is dry to take out the back from solution;
(2) filter paper that (1) is made is soaked in the soluble-salt aqueous solution of 450-510mg/L zinc, fully soaks into the back and takes out drying;
(3) above-mentioned filter paper is pasted on the substrate, promptly makes a kind of copper and detect test paper.
The concentration of aqueous solution of the soluble-salt of described zinc is preferably 500mg/L.
The soluble-salt of described zinc is zinc nitrate or zinc chloride or zinc sulfate.
This test paper have make simple, easy to carry, simple to operate, finding speed is fast, and has characteristics such as certain selectivity, accuracy and sensitivity, is fit to very much on-the-spot fast detecting.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples:
A kind of copper detects test paper, comprise substrate 1, it also comprises the colour developing scraps of paper 2, the described colour developing scraps of paper are that filter paper takes out after the nabam ethanolic solution fully soaks into, after waiting to do, take out behind the solution immersion of the soluble-salt of zinc, make after the drying, the described colour developing scraps of paper are fixedlyed connected with described substrate.
Described substrate is a sheet plastic, and described sheet plastic is preferably white.
Described filter paper is quantitative filter paper or qualitative filter paper.
Embodiment 1:
Quantitative filter paper is put into the nabam ethanolic solution of 15g/L, fully soak into, dry in from solution, getting, be soaked in again in the aqueous solution of 500mg/L zinc nitrate, fully soak into the back and take out, after the drying, make a kind of copper with substrate sticking together and detect test paper.
Embodiment 2:
Quantitative filter paper is put into the nabam ethanolic solution of 20g/L, fully soak into, dry in from solution, getting, be soaked in again in the aqueous solution of 470mg/L chlorination acid zinc, fully soak into the back and take out, after the drying, make a kind of copper with substrate sticking together and detect test paper.
Embodiment 3:
Qualitative filter paper is put into the nabam ethanolic solution of 17g/L, fully soak into, dry in from solution, getting, be soaked in again in the aqueous solution of 450mg/L zinc sulfate, fully soak into the back and take out, after the drying, make a kind of copper with substrate sticking together and detect test paper.
Embodiment 4:
Qualitative filter paper is put into the nabam ethanolic solution of 15g/L, fully soak into, dry in from solution, getting, be soaked in again in the aqueous solution of 510mg/L zinc nitrate, fully soak into the back and take out, after the drying, make a kind of copper with substrate sticking together and detect test paper.
The using method of paper of copper,test is as follows:
Copper is detected test paper immerse in the sample solution, take out after 5 minutes, more quantitative with the standard color range.
Claims (5)
1. a copper detects test paper, comprise substrate, it is characterized in that it also comprises the colour developing scraps of paper, the described colour developing scraps of paper are that filter paper takes out after the nabam ethanolic solution soaks into, after waiting to do, take out behind the solution immersion of zinc nitrate or zinc chloride or zinc sulfate, make after the drying, the described colour developing scraps of paper are fixedlyed connected with described substrate.
2. a kind of copper according to claim 1 detects test paper, it is characterized in that described substrate is a sheet plastic, and described sheet plastic is a white.
3. a kind of copper according to claim 1 detects test paper, it is characterized in that described filter paper is quantitative filter paper or qualitative filter paper.
4. the preparation method of a copper detection test paper is characterized in that it comprises the steps:
(1) filter paper is put into the nabam ethanolic solution of 15-20g/L, fully soaked into, it is dry to take out the back from solution;
(2) filter paper that (1) is made is soaked in the aqueous solution of the zinc nitrate of 450-510mg/L or zinc chloride or zinc sulfate, fully soaks into the back and takes out drying;
(3) above-mentioned filter paper is pasted on the substrate, promptly makes a kind of copper and detect test paper.
5. a kind of copper according to claim 4 detects the preparation method of test paper, and the concentration of aqueous solution that it is characterized in that described zinc nitrate or zinc chloride or zinc sulfate is 500mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031191053A CN1189737C (en) | 2003-03-14 | 2003-03-14 | Copper detecting paper and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031191053A CN1189737C (en) | 2003-03-14 | 2003-03-14 | Copper detecting paper and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1456876A CN1456876A (en) | 2003-11-19 |
| CN1189737C true CN1189737C (en) | 2005-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031191053A Expired - Fee Related CN1189737C (en) | 2003-03-14 | 2003-03-14 | Copper detecting paper and preparing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN1189737C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419174B (en) * | 2007-10-24 | 2010-09-08 | 中国科学院沈阳应用生态研究所 | Method for detecting whole copper in soil |
| CN101435778B (en) * | 2007-11-12 | 2011-05-11 | 国家纳米科学中心 | Method for qualitatively detecting CU<2+> in solution directly by eye |
| CN101281139B (en) * | 2008-05-13 | 2010-06-02 | 北京大学 | Copper ion test paper and preparation thereof |
| CN101545867B (en) * | 2009-03-25 | 2011-11-09 | 昆明泊银科技有限公司 | Copper ion test paper and method for preparing same |
| CN101865854B (en) * | 2010-06-04 | 2011-08-31 | 广东环凯微生物科技有限公司 | Reagent for quickly determining copper concentration in water and use method thereof |
| CN102156125A (en) * | 2010-12-30 | 2011-08-17 | 上海交通大学 | Test strip for treating copper in drinking water and preparation method thereof |
| CN104502343B (en) * | 2015-01-23 | 2017-12-19 | 昆明泊银科技有限公司 | A kind of preparation method of special dedicated test test paper |
| CN105277540B (en) * | 2015-02-05 | 2018-03-23 | 温州医科大学 | Copper ion field fast detection method in a kind of water for eliminating reagent blank influence |
-
2003
- 2003-03-14 CN CNB031191053A patent/CN1189737C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1456876A (en) | 2003-11-19 |
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Granted publication date: 20050216 Termination date: 20120314 |