CN109900693A - A kind of copper ion test paper and its detection method - Google Patents
A kind of copper ion test paper and its detection method Download PDFInfo
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- CN109900693A CN109900693A CN201910294945.1A CN201910294945A CN109900693A CN 109900693 A CN109900693 A CN 109900693A CN 201910294945 A CN201910294945 A CN 201910294945A CN 109900693 A CN109900693 A CN 109900693A
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- test paper
- copper ion
- quinizarin
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- 238000012360 testing method Methods 0.000 title claims abstract description 90
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910001431 copper ion Inorganic materials 0.000 title claims abstract description 72
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- GUEIZVNYDFNHJU-UHFFFAOYSA-N quinizarin Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(O)=CC=C2O GUEIZVNYDFNHJU-UHFFFAOYSA-N 0.000 claims abstract description 86
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000007639 printing Methods 0.000 claims abstract description 6
- 238000004090 dissolution Methods 0.000 claims abstract description 4
- 244000178870 Lavandula angustifolia Species 0.000 claims description 3
- 235000010663 Lavandula angustifolia Nutrition 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000001102 lavandula vera Substances 0.000 claims description 3
- 235000018219 lavender Nutrition 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 238000001917 fluorescence detection Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 206010072289 Eye colour change Diseases 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001636 atomic emission spectroscopy Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000003694 hair properties Effects 0.000 description 1
- 208000010501 heavy metal poisoning Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of copper ion test paper and its detection methods.The present invention mixes quinizarin and acetone, quinizarin acetone soln is obtained after completely dissolution, it is added to ink-jet printer using quinizarin acetone soln as ink, it is stood after print pattern on test paper substrate by ink-jet printer, the pattern of printing is cut after acetone volatilizees completely, obtains copper ion test paper.The present invention not only can be convenient, accurately and rapidly detect copper ion, but also the present invention also has the advantages that production is simple, low in cost, environment friendly and pollution-free.
Description
Technical field
The present invention relates to a kind of test paper and its detection methods, more particularly to a kind of copper ion test paper and its detection side
Method.
Background technique
Heavy metal is generally defined as density greater than 5g/cm3Metal, be widely used in the industries such as industry.Heavy metal enters
Do not allow to be readily removable after environment, human body enrichment can be entered by food chain, causes the structure of protein that irreversible change occurs,
To influence the function of tissue, organ, human health is finally influenced, also, the harm of heavy metal poisoning is irreversible.
Copper ion pollution is the most commonly seen one kind of heavy metal pollution.For copper as heavy metal, it is also animals and plants and the mankind
Required microelement, micro copper can promote the growth of animals and plants, but after running up to certain amount in vivo, will
There are damage symptoms, as physiology is obstructed, arrest of development, in addition it is dead, so solving the problems, such as that Cu-W ore deposit is particularly important.
The detection of copper ion has great importance for the improvement of the health and ecological environment of the mankind.In recent years, largely
Detection technique have been put into detection of heavy metal ion, including atomic absorption spectrography (AAS), Inductively coupled plasma-mass spectrometry,
Anode removes voltammetry etc..But above-mentioned detection method requires the technology people of expensive experimental situation together, strictly, profession
The problems such as member, there are samples to need to pre-process, test is complicated, time-consuming and instrument operation expense is high.It cannot achieve scene
Monitoring also cannot achieve effective monitoring to the area that economic condition and objective environment are limited.
Therefore, research and develop a kind of convenience, it is accurate, quickly in detection water content of copper ion test paper, and be applicable in and examine on site
The method of survey, becoming this field researcher has technical problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of copper ion test paper and its detection methods.The present invention not only can be square
Just, copper ion is accurately and rapidly detected, and the present invention also has the advantages that production is simple, low in cost, environment friendly and pollution-free.
In order to solve the above technical problems, technical solution provided by the invention is as follows: a kind of copper ion test paper, by quinizarin
It is mixed with acetone, obtains quinizarin acetone soln after completely dissolution, be added to inkjet printing using quinizarin acetone soln as ink
Machine is stood after print pattern on test paper substrate by ink-jet printer, cuts the pattern of printing after acetone volatilizees completely,
Obtain copper ion test paper.
In above-mentioned copper ion test paper, the concentration of the quinizarin acetone soln is 0.1-2g/L.
In the detection method of copper ion test paper above-mentioned, copper ion test paper is impregnated in solution to be measured 10 points
Clock, the test paper that detects by an unaided eye variation, if test paper is changed into lavender from faint yellow, proves to contain copper ion in solution to be measured.
In the detection method of copper ion test paper above-mentioned, by adjusting the concentration of quinizarin in quinizarin acetone soln, come
Detect the solution to be measured containing various concentration copper ion.
In the detection method of copper ion test paper above-mentioned, it will test test paper and be impregnated in solution to be measured after ten minutes,
It will test test paper taking-up, with the fluorescence intensity of sepectrophotofluorometer Test paper, be calculated by the fluorescence intensity measured
Content of copper ion in solution to be measured.
In the detection method of copper ion test paper above-mentioned, the fluorescence intensity by measuring is calculated in solution to be measured
Content of copper ion calculation formula are as follows: y=-84.64x+842.2, y is the test paper that sepectrophotofluorometer detects in above formula
Fluorescence intensity, x be solution to be measured in content of copper ion.
Compared with prior art, quinizarin is creatively dissolved in acetone that obtain quinizarin acetone molten by applicant in the present invention
Quinizarin acetone soln is attached on test paper substrate, by the volatile characteristic of acetone, in test paper by liquid by inkjet printing technology
Finally only adhere to quinizarin on substrate, then by the characteristic of quinizarin and the discoloration of copper ion haptoreaction, obtains detectable copper ion
Test paper.Compared with existing detection means and testing product, the invention has the following advantages: 1, quinizarin is soluble in third
Copper, therefore the third copper solution of quinizarin can be penetrated into completely test paper substrate by inkjet printing technology, solving quinizarin can not be fine
The problem of being attached to test paper substrate greatly increases the effect and accuracy of product testing.And quinizarin passes through non-covalent bond
Power adsorbed close will not fall off in water in the fiber surface of test paper substrate, therefore have the characteristics that stability is good and easy to maintain.
2, quinizarin is highly soluble in acetone, therefore printer head is not easy to be plugged, it is only necessary to can be into using common ink-jet printer
The production of row Test paper, production method is very simple, and cost is also more cheap, can be mass-produced.3, waving due to acetone
Hair property, therefore to page fibre structure without destruction.4, the present invention can also print according to the needs of use various shape and
The pattern of size, then pattern is cut to the test paper for obtaining various shape and size.
Detailed description of the invention
The test paper that the quinizarin acetone soln that Fig. 1 is 1g/L makes is impregnated in the 1,2,3,4 molten with 5ppm copper ion of 5mL respectively
The corresponding relationship of liquid fluorescence intensity after ten minutes and copper ion concentration；
The test paper that the quinizarin acetone soln that Fig. 2 is 0.4g/L makes is impregnated in the 200,400,600 and 800ppb of 5mL respectively
The corresponding relationship of copper ion solution fluorescence intensity after ten minutes and copper ion concentration；
Fig. 3 is that test paper is immersed in containing the surface fluorescence figure after the various aqueous metallic ions of 20ppm；
Fig. 4 is the copper ion concentration comparison diagram of the two simulating pollution water samples measured using ICP-OES method and test paper.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated, but listed embodiment is not intended to limit this hair
It is bright.
Embodiment 1:
A kind of production of copper ion test paper:
Using quinizarin as main detection substance, ordinary filter paper is as test paper substrate.
Quinizarin is added in acetone solvent first, obtains quinizarin acetone soln, quinizarin acetone soln concentration after completely dissolution
For 0.1-2g/L, it is added to ink-jet printer for quinizarin acetone soln as ink, ink-jet printer selection can freely replace spray
The ink-jet printer of ink material, due to this ink-jet printer be can be by the matured product of commercially available acquisition, and the product
It is not core of the invention technology, therefore details are not described herein for specific structure.It is printed on test paper substrate by ink-jet printer
The rectangle pattern of 30 × 20mm stands after print pattern, cuts the pattern of printing after acetone volatilizees completely, obtain copper from
Sub- Test paper.Because acetone is volatile solvents, acetone can volatilize rapidly after printing, and test paper substrate will not be destroyed itself
Shape and structure.The pattern of printing is cut after acetone volatilizees completely, which just can be used as the test paper of copper ion detection
It uses.
Further, by adjusting the concentration of quinizarin in quinizarin acetone soln, to detect containing various concentration copper ion
Solution to be measured.Quinizarin concentration is high, then the quinizarin of page surface is more, is more suitable for the high sample of copper ion concentration.
Embodiment 2:
The detection method of copper ion:
Sxemiquantitative color developing detection: in sxemiquantitative color developing detection, we make examination using the quinizarin acetone soln of 0.6g/L
Paper.The test paper made is impregnated in 5mL's and respectively containing 1,2,3,4 and solution 10 minutes of 5ppm copper ion respectively.Leaching
After stain, detect by an unaided eye color change, the results show that test paper can be by initial faint yellow turn with the increase of copper ion concentration
Become lavender.Should and there be significant change when copper ion concentration is 2ppm.2ppm is that drinking water copper ion as defined in WHO is dense
Spend safety standard.Should be the results show that whether copper ion concentration be exceeded in the capable detection drinking water of the test paper.The semidefinite of the test paper
It is easy to operate to measure color developing detection, provides drinking water on-site test scheme for layman.
Quantitative fluorescence detection；Quinizarin has and can be excited by the light of wavelength 490nm, and the characteristic of fluorescence is discharged at 570nm.?
In quantitative fluorescence detection, after test paper is reacted with copper ion, we are by sepectrophotofluorometer, after measurement test paper surface is excited
The surface fluorescence discharged at 570nm.In this experiment, we make test paper using the quinizarin acetone soln of 1g/L.
The test paper made equally is impregnated in the 1,2,3,4 of 5mL and 5ppm copper ion solution 10 minutes respectively.In addition, in order to make
The test paper of higher precision, we make test paper using the quinizarin acetone soln of 0.4g/L.And the test paper made is soaked respectively
Stain was in 200,400,600 and 800ppb copper ion solution 10 minutes.Finally, the surface fluorescence that we have detected two kinds of test paper is strong
Degree, and analyzed.Attached drawing 1 is that the test paper of the quinizarin acetone soln production of 1g/L is impregnated in the 1,2,3,4 and 5ppm of 5mL respectively
The corresponding relationship of copper ion solution fluorescence intensity after ten minutes and copper ion concentration.Attached drawing 2 is that the quinizarin acetone of 0.4g/L is molten
The test paper of liquid production be impregnated in respectively the 200,400,600 of 5mL with the fluorescence intensity of 800ppb copper ion solution after ten minutes with
The corresponding relationship of copper ion concentration.It summarizes through applicant's repetition test, is calculated in solution to be measured by the fluorescence intensity measured
The calculation formula of content of copper ion are as follows: y=-84.64x+842.2, y is the test paper that sepectrophotofluorometer detects in above formula
Fluorescence intensity, x are the content of copper ion in solution to be measured.Test paper surface is in fluorescence spectrophotometry after Fig. 1 and Fig. 2 shows reaction
The corresponding relationship of fluorescence intensity and copper ion concentration in meter.Should the results show that reaction after test paper surface fluorescence and copper ion
Concentration is in good linear relationship.Sepectrophotofluorometer price is lower, easy to maintain, which provides for routine experimentation personnel
Feasible alternative, the i.e. test paper cooperate sepectrophotofluorometer quantitative detection copper ion concentration, this is than conventional ICP-
The methods of OES greatly reduces cost, saves manpower.
Embodiment 3: the analysis of disturbing factor
The selectivity of detection: to analyze the selectivity that the test paper detects copper ion, We conducted miscellaneous metal ions
Interference analysis.Test paper is impregnated in the Na of 5mL and 20ppm by we respectively+,K+,Ca2+,Fe3+,Co2+,Cd2+,Mn2+,Pb2+,Ni2 +,Zn2+With Ag+Solution 10 minutes.Test paper after dipping carries out sxemiquantitative color developing detection respectively and quantitative fluorescence detects.In 20ppm
Na+,K+,Ca2+,Fe3+,Co2+,Cd2+,Mn2+,Pb2+,Ni2+,Zn2+andAg+After impregnating in solution, there is no aobvious for test paper
Colour response.Quantitative fluorescence detection in, we can learn from Fig. 3, copper ion can obvious quenching quinizarin fluorescence, and its
His metal ion is without obvious effect.Two above result is provable, which has excellent selectivity to copper ion detection.
The precision of detection: ICP-OES is the copper ion examination criteria method of the World Health Organization recommended.In the experiment
In, we have prepared two simulating pollution water samples.One is to dilute dense copper ion solution with Lake Water common in nature to prepare
It forms, the other is being to mix various metal ion solutions at random to be formulated.Respectively with ICP-OES and the copper ion developed
Test paper detects the sample of two preparations and compares.As shown in Fig. 4, the sample of two preparations is under two kinds of detection methods
As a result very close, it was demonstrated that the test paper that we are developed has extraordinary sensitivity and an accuracy.
Claims (6)
1. a kind of copper ion test paper, it is characterised in that: mix quinizarin and acetone, obtain quinizarin acetone after completely dissolution
Solution is added to ink-jet printer using quinizarin acetone soln as ink, by ink-jet printer on test paper substrate printed drawings
It is stood after case, the pattern of printing is cut after acetone volatilizees completely, obtains copper ion test paper.
2. copper ion test paper according to claim 1, it is characterised in that: the concentration of the quinizarin acetone soln is
0.1-2g/L。
3. the detection method of copper ion test paper according to claim 1 or 2, it is characterised in that: detect copper ion
Test paper is impregnated in solution to be measured 10 minutes, and the test paper that detects by an unaided eye variation if test paper is changed into lavender from faint yellow, is demonstrate,proved
Contain copper ion in bright solution to be measured.
4. the detection method of copper ion test paper according to claim 3, it is characterised in that: by adjusting quinizarin acetone
The concentration of quinizarin in solution, to detect the solution to be measured containing various concentration copper ion.
5. the detection method of copper ion test paper according to claim 3, it is characterised in that: will test test paper and be impregnated in
In solution to be measured after ten minutes, it will test test paper taking-up, with the fluorescence intensity of sepectrophotofluorometer Test paper, by measuring
Fluorescence intensity the content of copper ion in solution to be measured is calculated.
6. the detection method of copper ion test paper according to claim 5, it is characterised in that: described glimmering by what is measured
Luminous intensity calculates the calculation formula of the content of copper ion in solution to be measured are as follows: y=-84.64x+842.2, y is fluorescence point in above formula
The fluorescence intensity for the test paper that light photometer detects, x are the content of copper ion in solution to be measured.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743513A (en) * | 2019-11-01 | 2020-02-04 | 浙江科技学院 | Preparation method of cellulose sponge for copper ion adsorption |
| CN111830021A (en) * | 2020-07-28 | 2020-10-27 | 江西省农业科学院农产品质量安全与标准研究所 | Test paper for detecting copper (II) ions with high selectivity and preparation method thereof |
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| CN102507548A (en) * | 2011-10-12 | 2012-06-20 | 江南大学 | Method for preparing heavy metal ion detecting and sensing test paper based on inkjet printing technology, and application of test paper |
| CN107345910A (en) * | 2017-07-10 | 2017-11-14 | 南京医科大学 | Wide colourity test paper of a kind of fluorescence for Visual retrieval copper ion and its preparation method and application |
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2019
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|---|---|---|---|---|
| JPH01180816A (en) * | 1988-01-11 | 1989-07-18 | Kao Corp | Shampoo composition |
| CN102507548A (en) * | 2011-10-12 | 2012-06-20 | 江南大学 | Method for preparing heavy metal ion detecting and sensing test paper based on inkjet printing technology, and application of test paper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110743513A (en) * | 2019-11-01 | 2020-02-04 | 浙江科技学院 | Preparation method of cellulose sponge for copper ion adsorption |
| CN110743513B (en) * | 2019-11-01 | 2022-06-14 | 浙江科技学院 | Preparation method of cellulose sponge for copper ion adsorption |
| CN111830021A (en) * | 2020-07-28 | 2020-10-27 | 江西省农业科学院农产品质量安全与标准研究所 | Test paper for detecting copper (II) ions with high selectivity and preparation method thereof |
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Application publication date: 20190618 |