CN104345056A - A detection agent for detection the concentration of copper ions in water, detection paper and a preparing method of the detection paper - Google Patents
A detection agent for detection the concentration of copper ions in water, detection paper and a preparing method of the detection paper Download PDFInfo
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- CN104345056A CN104345056A CN201310330467.8A CN201310330467A CN104345056A CN 104345056 A CN104345056 A CN 104345056A CN 201310330467 A CN201310330467 A CN 201310330467A CN 104345056 A CN104345056 A CN 104345056A
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Abstract
The invention relates to a detection agent for detection the concentration of copper ions in water. The detection agent mainly comprises following components by weight: 0.2-1 part of an aminophenol type sensitive indicator, 3-20 parts of a pH buffer having a pH value of 3-6 and 0.5-10 parts of sodium phosphate. The invention also relates to detection paper for detecting the concentration of the copper ions in water, and a preparing method thereof. The detection paper comprises a substrate, and a coloration paper strip adhered to the front end of the substrate. The coloration paper strip is dipped with the detection agent. By adoption of the detection agent and the detection paper, the concentration of the ions in a low concentration in the water can be detected rapidly.
Description
Technical field
The present invention relates to a kind of detection reagent, particularly a kind of detection reagent for detecting copper ion concentration in water.In addition, the invention still further relates to a kind of Test paper for detecting copper ion concentration in water and preparation method thereof.
Technical background
The detection of the copper ion of the detection of copper ion, particularly low concentration, generally adopts spectrophotometric method, if condition license also can use emission spectrum, atomic absorption spectrophotometry, ionic spectrum and ionometer etc.These methods all need assay laboratory, analyst, analytical equipment, have more restrictive condition.With detecting reagent or then there is quick, easy, easy operation with Test paper, easily to carry and the advantage that controls in real time, accepting extensively of user will be subject to.
Application number is the Test paper disclosing copper ion in a kind of water in the Chinese patent of 99116816.X, this test paper is only applicable to the detection of the higher copper ion of concentration, sensing range is at 0 ~ 100ppm, and to low concentration, particularly the detection sensitivity of the copper ion of below 10ppm is poor.
Summary of the invention
The object of the present invention is to provide a kind of detection reagent that can detect the copper ion concentration of low concentration in water fast and the Test paper be made up of this reagent and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is:
For detecting a detection reagent for copper ion concentration in water, it is characterized in that: the component mainly comprising following parts by weight:
The sensitive indicator 0.2 ~ 1 of amino phenols;
PH value 3 ~ 6 pH damping fluid 3 ~ 20;
Sodium phosphate 0.5 ~ 10.
As a preferred scheme, also comprise deionized water, the parts by weight of described deionized water are 69 ~ 96.3.
As another preferred scheme, the sensitive indicator of described amino phenols is 4-(2-pyridylazo) resorcinol or 2-(2-[4-morpholinodithio azo)-5-sulphur third amino-phenol.
Test paper of the present invention is a kind of Test paper for detecting copper ion concentration in water, comprises substrate and the colour developing indicator paper block being pasted onto described substrate front end, it is characterized in that: described colour developing indicator paper block impregnated of above-mentioned detection reagent.
As a preferred scheme, described substrate is polystyrene sheet or hard paper.
As another preferred scheme, described colour developing indicator paper block is chromatographic test paper or filter paper.
As another preferred scheme, described base panel length is 6 ~ 10cm, and width is 0.3 ~ 1cm.
As another preferred scheme, the area of described colour developing indicator paper block is 0.01 ~ 1cm
2.
Preparation method of the present invention is a kind of method preparing above-mentioned Test paper, comprises the following steps:
(1), by chromatographic test paper or filter paper be placed in above-mentioned detection reagent and flood after 1 ~ 10 second, obtain through 20 ~ 65 DEG C of dryings the indicator paper block that develops the color;
(2), described colour developing indicator paper block is pasted onto the front end of substrate.
The beneficial effect adopting technique scheme to produce is: as long as instill a detection reagent of the present invention in liquid to be measured, and color change will occur liquid to be measured, contrast after 15 second, just can measure result with colour atla, and the color range of colour atla is yellow → red.Test paper of the present invention is then more convenient, as long as in use test strip is immersed in liquid to be measured, takes out immediately, contrasts, just can measure result after 15 seconds with colour atla.Adopt detection reagent of the present invention can detect the copper ion concentration of low concentration, can detect concentration in water outlet is exactly the copper ion of 0.1 ~ 2ppm.In addition, the operation of detection is very simple, fast, directly perceived, without the need to laboratory, professional test personnel and checkout equipment, just can the direct concentration of extremely low concentration copper ion in Accurate Determining water.The test error of test paper of the present invention is within ± 5%.Further, adopt the copper ion result that detection reagent of the present invention and Test paper measure, not by the impact of ferric ion common in test solution, improve the correctness of copper ion test in water.The preparation process of test paper of the present invention is simple, easy to operate, has saved production time and production cost.
Embodiment
For making technological means of the present invention, reach object and effect is easy to understand, below in conjunction with embodiment, set forth the present invention further.
An embodiment of detection reagent of the present invention is:
For detecting a detection reagent for copper ion concentration in water, mainly comprise the component of following parts by weight:
Another embodiment of detection reagent of the present invention is:
For detecting a detection reagent for copper ion concentration in water, mainly comprise the component of following parts by weight:
Another embodiment of detection reagent of the present invention is:
For detecting a detection reagent for copper ion concentration in water, mainly comprise the component of following parts by weight:
An embodiment of Test paper of the present invention is:
For detecting a Test paper for copper ion concentration in water, comprising polystyrene sheet and being pasted onto the filter paper of polystyrene sheet front end, filter paper impregnation detection reagent.Polystyrene leaf length is 6cm, and width is 0.3cm.The area of filter paper is 0.01cm
2.Detect the component that reagent mainly comprises following parts by weight:
Another embodiment of Test paper of the present invention is:
For detecting a Test paper for copper ion concentration in water, comprise hard paper and the chromatographic test paper being pasted onto hard paper front end, chromatographic test paper impregnated of detection reagent.Hard paper length is 10cm, and width is 1cm.The area of chromatographic test paper is 1cm
2.Detect the component that reagent mainly comprises following parts by weight:
An embodiment of preparation method of the present invention is:
Prepare a method for above-mentioned Test paper, comprise the following steps:
(1), by chromatographic test paper be placed in the detection reagent configured and flood after 10 seconds, obtain through 65 DEG C of dryings the indicator paper block that develops the color;
(2), above-mentioned colour developing indicator paper block being cut into area is 0.5cm
2, be pasted on the front end of substrate.
Compared with prior art, adopt detection reagent of the present invention, Test paper especially of the present invention, very convenient during use, only need take out one, test paper, immerse in test solution, take out immediately, compare with colour atla in 15 seconds, directly can read concentration.Without the need to laboratory environment or other experiment equipments, save inspection cost and manpower.And copper ion concentration is very low in water, still can accurately detect its concentration.We can find out from the comparing of following test paper method and spectrophotometric method test result.
Test paper method and spectrophotometric method test result comparison sheet
(unit: ppm, with Cu content meter)
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand, the present invention is not restricted to the described embodiments, only for illustration of principle of the present invention in above-described embodiment and instructions, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all belong to the scope of the invention.Invent claimed scope by claims of annex and equivalent circle thereof.
Claims (9)
1., for detecting a detection reagent for copper ion concentration in water, it is characterized in that: the component mainly comprising following parts by weight:
The sensitive indicator 0.2 ~ 1 of amino phenols;
PH value 3 ~ 6 pH damping fluid 3 ~ 20;
Sodium phosphate 0.5 ~ 10.
2. detection reagent according to claim 1, is characterized in that: also comprise deionized water, and the parts by weight of described deionized water are 69 ~ 96.3.
3. detection reagent according to claim 1 and 2, is characterized in that: the sensitive indicator of described amino phenols is 4-(2-pyridylazo) resorcinol or 2-(2-[4-morpholinodithio azo)-5-sulphur third amino-phenol.
4., for detecting a Test paper for copper ion concentration in water, comprising substrate and the colour developing indicator paper block being pasted onto described substrate front end, it is characterized in that: described colour developing indicator paper block impregnated of detection reagent according to claim 1.
5. Test paper according to claim 4, is characterized in that: described substrate is polystyrene sheet or hard paper.
6. Test paper according to claim 4, is characterized in that: described colour developing indicator paper block is chromatographic test paper or filter paper.
7. the Test paper according to claim 4 or 5 or 6, is characterized in that: described base panel length is 6 ~ 10cm, and width is 0.3 ~ 1cm.
8. the Test paper according to claim 4 or 5 or 6, is characterized in that: the area of described colour developing indicator paper block is 0.01 ~ 1cm
2.
9. prepare a method for Test paper described in claim 4, it is characterized in that, comprise the following steps:
(1), by chromatographic test paper or filter paper being placed on to detect described in claim 1 in reagent floods after 1 ~ 10 second, obtains through 20 ~ 65 DEG C of dryings the indicator paper block that develops the color;
(2), described colour developing indicator paper block is pasted onto the front end of substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310330467.8A CN104345056A (en) | 2013-07-31 | 2013-07-31 | A detection agent for detection the concentration of copper ions in water, detection paper and a preparing method of the detection paper |
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| CN201310330467.8A CN104345056A (en) | 2013-07-31 | 2013-07-31 | A detection agent for detection the concentration of copper ions in water, detection paper and a preparing method of the detection paper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243820A (en) * | 2019-07-01 | 2019-09-17 | 吉林化工学院 | A kind of copper ion test paper based on novel azo compound |
| CN110849869A (en) * | 2019-11-18 | 2020-02-28 | 南京江原安迪科正电子研究发展有限公司 | Color development method and kit for detecting copper ion concentration limit in radioactive injection |
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| CN1421694A (en) * | 2001-11-30 | 2003-06-04 | 上海三爱思试剂有限公司 | Test paper for detecting residual chlorine in water and its prepn process |
| CN101545867A (en) * | 2009-03-25 | 2009-09-30 | 云南清洁能源科技有限公司 | Copper ion test paper and method for preparing same |
| CN103163130A (en) * | 2013-03-25 | 2013-06-19 | 福州大学 | Portable copper ion concentration detection method based on click chemistry |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1421694A (en) * | 2001-11-30 | 2003-06-04 | 上海三爱思试剂有限公司 | Test paper for detecting residual chlorine in water and its prepn process |
| CN101545867A (en) * | 2009-03-25 | 2009-09-30 | 云南清洁能源科技有限公司 | Copper ion test paper and method for preparing same |
| CN103163130A (en) * | 2013-03-25 | 2013-06-19 | 福州大学 | Portable copper ion concentration detection method based on click chemistry |
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| 于秀兰等: "吡啶偶氮类试剂在光度分析中的应用进展", 《岩矿测试》 * |
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| 马卫兴等: "2-(2-苯并噻唑偶氮)-5-磺丙氨基苯酚与铜的水相显色反应研究及应用", 《理化检验-化学分册》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243820A (en) * | 2019-07-01 | 2019-09-17 | 吉林化工学院 | A kind of copper ion test paper based on novel azo compound |
| CN110849869A (en) * | 2019-11-18 | 2020-02-28 | 南京江原安迪科正电子研究发展有限公司 | Color development method and kit for detecting copper ion concentration limit in radioactive injection |
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