CN101545867B - Copper ion test paper and method for preparing same - Google Patents
Copper ion test paper and method for preparing same Download PDFInfo
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- CN101545867B CN101545867B CN2009100942524A CN200910094252A CN101545867B CN 101545867 B CN101545867 B CN 101545867B CN 2009100942524 A CN2009100942524 A CN 2009100942524A CN 200910094252 A CN200910094252 A CN 200910094252A CN 101545867 B CN101545867 B CN 101545867B
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Abstract
The invention discloses a copper ion test paper, which comprises a substrate (1) and chromogenic test paper (2) fixed on the substrate (1), and is characterized in that the chromogenic test paper (2) is prepared by steeping filter paper in a steeping fluid, taking out the filter paper from the steeping fluid and drying the filter paper, wherein the steeping fluid consists of the following components by weight: 0.07 to 1.4 percent of sodium diethyl dithiocarbamate, 5.7 to 11.4 percent potassium sodium tartrate, 0.036 to 0.71 percent of soluble starch, and 86.49 to 94.194 percent of distilled water. The invention also provides a method for preparing the copper ion test paper. The test paper has the advantages of simple fabrication, low cost, convenient use, no pollution to the environment, and favorability for environmental protection; and besides, the test paper has wide test range, is not required to be operated by a professional, and is particularly applicable to quick field test of copper content.
Description
Technical field
The present invention relates to a kind of survey paper of copper,test and preparation method thereof, specifically, is as copper ion test paper of developer and preparation method thereof with sodium diethyldithiocarbamate.
Background technology
Copper is the life trace elements necessary, and to normally playing an important role of the biochemical reactions in the life entity, but copper is again a heavy metal species, and excessive copper all is harmful to humans and animals, plant.
Most cupric in the industrial waste waters such as the exploitation of copper mine, cathode copper, plating, chemical industry, printing and dyeing, also cupric all in the pest control of use and the seed disinfection medicament on the agricultural when water source during by this type of contaminated wastewater, may contain trace copper in the water.Copper content surpasses 1.5 mg/litre in the water tangible metallic taste, when surpassing 1 mg/litre, can make textile dyeing.The copper-containing wastewater irrigated farmland accumulates copper in soil and crops, can cause crop growth bad, and copper sulphate is 0.6 mg/litre to the critical concentration of rice hazard in the irrigation water.Copper is indispensable trace element in the human body, and it is not enough or excessive that human body is taken in copper, all can have a negative impact to body, even cause the generation of some disease, quickens body aging.For example, serum copper and liver function have substantial connection, measure the development that chronic liver disease serum copper content will help to judge the state of an illness, can be helpful to clinical treatment.
National regulation, the highest permission concentration of emission of copper and compound thereof is 1 mg/litre (by a copper) in the industrial waste water, and day water maximum permissible concentration is 0.1 mg/litre, and fishery water is 0.01 mg/litre, and the copper concentration of Drinking Water must not surpass 1 mg/litre.
Therefore, the copper content detection is significant in fields such as commercial production, environment measuring, agriculture application, medical science, food securities.The copper content detecting method has atomic absorption spectrography (AAS), atomic absorption luminosity method, iodimetric titration, spectrophotometric method etc. at present, these detection methods, not only requiring has laboratory condition, and detection time is longer, expense is also higher, is unfavorable for realizing field quick detection.
The Chinese invention patent of " a kind of copper detect test paper and preparation method thereof " disclose a kind of with survey paper of copper,test fast, the method for easy detection copper content, its patent No. is 03119105.3, publication number is CN1456876, but contain zinc soluble-salt mordant, easy contaminated environment in this test paper, a large amount of use is unfavorable for environmental protection.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of copper ion test paper and preparation method thereof, this test paper is not only easy to carry, can detect copper ion concentration at the scene quickly and easily, and it is easy to prepare, with low cost, free from environmental pollution, environmental.
For solving above technical matters, technical scheme of the present invention is as follows:
A kind of copper ion test paper is provided, comprise colour developing test paper fixing on substrate and the substrate, described colour developing test paper is that filter paper soaks into the back taking-up in maceration extract, make after the drying, described maceration extract compositions in weight percentage is by sodium diethyldithiocarbamate 0.07～1.4%, sodium potassium tartrate tetrahydrate 5.7～11.4%, soluble starch 0.036～0.71% and distilled water 86.49～94.194% are formed.
Described substrate is PVC or PET plastic tab.
Described filter paper is quantitative filter paper or qualitative filter paper.
The present invention also provides a kind of preparation method of copper ion test paper, comprises the steps:
Step 1, preparation maceration extract, sodium diethyldithiocarbamate 0.07～1.4 gram is dissolved in 20 ml distilled waters, the evenly mixed solution one that gets, sodium potassium tartrate tetrahydrate 5.7～11.4 grams are dissolved in 20 ml distilled waters, the even mixed solution two that gets dissolves in soluble starch 0.036～0.71 gram heating in 20 ml distilled waters, the evenly mixed solution three that gets, after above-mentioned three kinds of solution mixing, be settled to 100 milliliters;
Step 3, dried filter paper is cut into indicator paper block, described indicator paper block is pasted on the lamelliform plastic substrate.
The purity of described sodium diethyldithiocarbamate, sodium potassium tartrate tetrahydrate and soluble starch is pure for analyzing.
Filter paper drying in the described step 2 is that filter paper is at room temperature dried.
Described filter paper is quantitative filter paper or qualitative filter paper.
Described substrate is PVC or PET plastic tab.
The present invention adopts sodium diethyldithiocarbamate as developer, and the colour developing principle of utilizing copper ion and sodium diethyldithiocarbamate to generate the yellowish-brown complex compound is made into copper ion test paper, does not contain corrosive, contaminated environment thing.During use this is surveyed paper of copper,test and immerse 1～2 second in the cupric liquid to be measured, take out back colour developing indicator paper block and become yellowish-brown, increase along with copper concentration in the liquid to be measured, apparent color is progressively deepened to deep yellow brown from light yellowish brown, again with the contrast of test paper and standard color card, realize detection to copper content according to the depth of color.
The invention has the beneficial effects as follows: detect test paper and make simple, with low cost, easy to use, free from environmental pollution, environmental; Test specification is wide, need not professional's operation, is specially adapted to the on-the-spot fast copper content that detects.
Description of drawings
Fig. 1 detects the structural representation of test paper for the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1:
As shown in Figure 1, a kind of copper ion test paper, comprise colour developing test paper 2 fixing on substrate 1 and the substrate 1, substrate 1 is the thin slice that the PVC plastics are made, colour developing test paper 2 is that quantitative filter paper soaks into the back taking-up in maceration extract, makes after drying under the room temperature, and described maceration extract compositions in weight percentage is by analytically pure sodium diethyldithiocarbamate 0.07%, sodium potassium tartrate tetrahydrate 5.7%, soluble starch 0.036% and distilled water 94.194% are formed.
The preparation method of present embodiment copper ion test paper comprises the steps:
Step 1, preparation maceration extract, sodium diethyldithiocarbamate 0.07 gram is dissolved in 20 ml distilled waters, the evenly mixed solution one that gets, sodium potassium tartrate tetrahydrate 5.7 grams are dissolved in 20 ml distilled waters, the even mixed solution two that gets dissolves in soluble starch 0.036 gram heating in 20 ml distilled waters, the evenly mixed solution three that gets, after above-mentioned three kinds of solution mixing, be settled to 100 milliliters.
Step 3, the indicator paper block that dried filter paper is cut into suitable dimension make colour developing test paper 2, and this colour developing test paper 2 is pasted on the lamelliform PVC plastic substrate 1, put into the packaging bag of lucifuge protection against the tide and preserve, and promptly make a kind of test paper that detects copper.Test specification: 1-100ppm.
Embodiment 2:
As shown in Figure 1, a kind of copper ion test paper, comprise colour developing test paper 2 fixing on substrate 1 and the substrate 1, substrate 1 is the thin slice that the PVC plastics are made, colour developing test paper 2 is that qualitative filter paper soaks into the back taking-up in maceration extract, dries under the room temperature to make, and described maceration extract compositions in weight percentage is by sodium diethyldithiocarbamate 1.4%, sodium potassium tartrate tetrahydrate 11.4%, soluble starch 0.71% and distilled water 86.49% are formed.
The preparation method of present embodiment copper ion test paper comprises the steps:
Step 1, preparation maceration extract, sodium diethyldithiocarbamate 1.4 grams are dissolved in 20 ml distilled waters, the evenly mixed solution one that gets, sodium potassium tartrate tetrahydrate 11.4 grams are dissolved in 20 ml distilled waters, the even mixed solution two that gets dissolves in soluble starch 0.71 gram heating in 20 ml distilled waters, the evenly mixed solution three that gets, after above-mentioned three kinds of solution mixing, be settled to 100 milliliters;
Step 3, the indicator paper block that dried filter paper is cut into suitable dimension make colour developing test paper 2, and this colour developing test paper 2 is pasted on the lamelliform PVC plastic substrate 1, put into the packaging bag of lucifuge protection against the tide and preserve, and promptly make a kind of test paper that detects copper.Test specification: 1-400ppm.
Embodiment 3:
As showing of Fig. 1, a kind of copper ion test paper, comprise colour developing test paper 2 fixing on substrate 1 and the substrate 1, substrate 1 is the thin slice that the PET plastics are made, colour developing test paper 2 is that quantitative filter paper soaks into the back taking-up in maceration extract, makes after drying under the room temperature, and described maceration extract compositions in weight percentage is by sodium diethyldithiocarbamate 0.5%, sodium potassium tartrate tetrahydrate 8%, soluble starch 0.2% and distilled water 91.3% are formed.
The preparation method of present embodiment copper ion test paper comprises the steps:
Step 1, preparation maceration extract, sodium diethyldithiocarbamate 0.5 gram is dissolved in 20 ml distilled waters, the evenly mixed solution one that gets, sodium potassium tartrate tetrahydrate 8.0 grams are dissolved in 20 ml distilled waters, the even mixed solution two that gets dissolves in soluble starch 0.2 gram heating in 20 ml distilled waters, the evenly mixed solution three that gets, after above-mentioned three kinds of solution mixing, be settled to 100 milliliters;
Step 3, the indicator paper block that dried filter paper is cut into suitable dimension make colour developing test paper 2, and this colour developing test paper 2 is pasted on the lamelliform PET plastic substrate 1, put into the packaging bag of lucifuge protection against the tide and preserve, and promptly make a kind of test paper that detects copper.Test specification: 1-200ppm.
Detection method: during use test paper provided by the present invention is immersed 1～2 second in the cupric liquid to be measured, take out back colour developing indicator paper block and become yellowish-brown, increase along with copper concentration in the liquid to be measured, apparent color is progressively deepened to deep yellow brown from light yellowish brown, again with the contrast of test paper and standard color card, realize detection to copper content according to the depth of color.
Claims (6)
1. copper ion test paper, comprise the colour developing test paper (2) that substrate (1) and substrate (1) are upward fixing, it is characterized in that: described colour developing test paper (2) is that filter paper soaks into the back taking-up in maceration extract, make after the drying, described maceration extract compositions in weight percentage is by sodium diethyldithiocarbamate 0.07～1.4%, sodium potassium tartrate tetrahydrate 5.7～11.4%, soluble starch 0.036～0.71% and distilled water 86.49～94.194% are formed.
2. a kind of copper ion test paper according to claim 1 is characterized in that: described substrate (1) is PVC or PET plastic tab.
3. a kind of copper ion test paper according to claim 1 is characterized in that: described filter paper is quantitative filter paper or qualitative filter paper.
4. the preparation method of a copper ion test paper is characterized in that comprising the steps:
Step 1, preparation maceration extract, sodium diethyldithiocarbamate 0.07～1.4 gram is dissolved in 20 ml distilled waters, the evenly mixed solution one that gets, sodium potassium tartrate tetrahydrate 5.7～11.4 grams are dissolved in 20 ml distilled waters, the even mixed solution two that gets dissolves in soluble starch 0.036～0.71 gram heating in 20 ml distilled waters, the evenly mixed solution three that gets, after above-mentioned three kinds of solution mixing, be settled to 100 milliliters;
Step 2, filter paper is immersed in the described maceration extract that described step 1 makes, treat to take out drying after 1 minute;
Step 3, dried filter paper is cut into indicator paper block, described indicator paper block is pasted on the lamelliform plastic substrate.
5. the preparation method of a kind of copper ion test paper according to claim 4 is characterized in that: the purity of described sodium diethyldithiocarbamate, sodium potassium tartrate tetrahydrate and soluble starch is pure for analyzing.
6. the preparation method of a kind of copper ion test paper according to claim 4, it is characterized in that: the filter paper drying in the described step 2 is that filter paper is at room temperature dried.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102419326B (en) * | 2011-08-18 | 2013-07-17 | 昆明泊银科技有限公司 | Preparation method of test paper for detecting hexavalent chromium ions |
| CN104345056A (en) * | 2013-07-31 | 2015-02-11 | 上海索诚化学试剂有限公司 | A detection agent for detection the concentration of copper ions in water, detection paper and a preparing method of the detection paper |
| CN103487433B (en) * | 2013-09-25 | 2017-01-18 | 昆明泊银科技有限公司 | Cobalt ion test paper as well as preparation method and use method thereof |
| CN103487432A (en) * | 2013-09-25 | 2014-01-01 | 昆明泊银科技有限公司 | Lead ion detection test paper, and preparation method and use method thereof |
| CN103499574B (en) * | 2013-09-25 | 2017-01-25 | 昆明泊银科技有限公司 | Aluminum ion detection test paper as well as preparation method and use method of aluminum ion detection test paper |
| CN104568929A (en) * | 2013-10-24 | 2015-04-29 | 北京福德安科技有限公司 | Rapid testing paper for testing hydrogen peroxide residue in foods |
| CN105067602B (en) * | 2015-07-16 | 2017-08-25 | 重庆大学 | A kind of copper ion test paper and the method for detecting copper ion in water |
| CN106198518B (en) * | 2016-07-05 | 2019-07-16 | 河南城建学院 | A kind of copper ion quick detection test paper and preparation method thereof |
| CN106198522B (en) * | 2016-07-05 | 2019-02-22 | 河南城建学院 | A kind of fast detection kit for copper ions and its detection method |
| CN108195830B (en) * | 2017-12-19 | 2020-10-23 | 浙江理工大学 | Visual detection method for trace copper ions |
| CN109115757A (en) * | 2018-07-11 | 2019-01-01 | 沈阳理工大学 | A kind of test paper and measuring method measuring copper concentration |
| CN108827957A (en) * | 2018-08-22 | 2018-11-16 | 重庆巨能建设集团路桥工程有限公司 | The method for detecting salt content in salinized soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1456876A (en) * | 2003-03-14 | 2003-11-19 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Copper detecting paper and preparing method thereof |
| CN101281139A (en) * | 2008-05-13 | 2008-10-08 | 北京大学 | Copper ion test paper and preparation thereof |
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Patent Citations (2)
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| CN1456876A (en) * | 2003-03-14 | 2003-11-19 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Copper detecting paper and preparing method thereof |
| CN101281139A (en) * | 2008-05-13 | 2008-10-08 | 北京大学 | Copper ion test paper and preparation thereof |
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