CN107064033A - The Quick qualitative detection method and fast quantitative measurement method for detecting of chlorion - Google Patents
The Quick qualitative detection method and fast quantitative measurement method for detecting of chlorion Download PDFInfo
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- CN107064033A CN107064033A CN201710302571.4A CN201710302571A CN107064033A CN 107064033 A CN107064033 A CN 107064033A CN 201710302571 A CN201710302571 A CN 201710302571A CN 107064033 A CN107064033 A CN 107064033A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/386—Other diluting or mixing processes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N2021/3185—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry typically monochromatic or band-limited
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Abstract
The invention discloses a kind of Quick qualitative detection method of chlorion and fast quantitative measurement method for detecting, the particularly a kind of Quick qualitative detection method and fast quantitative measurement method for detecting of the chlorion for being related to material detection field.The Quick qualitative detection method of the chlorion of the present invention, including following steps：Silver nitrate solution is fully reacted with standard Chloride Solution；Its absorbance of measure reaction solution；Chloride Solution to be measured is taken fully to be reacted with silver nitrate solution；The absorbance of reaction solution is determined, compares both absorbances；The fast quantitative measurement method for detecting for the chlorion that the present invention is, silver nitrate solution is fully reacted with multiple standard Chloride Solutions, and the absorbance for determining each reaction solution draws standard absorbance curve.Using the method for the application fast qualitative detection, it is not necessary to expensive instrument and equipment, its process is simple, and the spent time is also short.
Description
Technical field
Related to the present invention relates to a kind of Quick qualitative detection method of chlorion and fast quantitative measurement method for detecting, particularly one kind
And the Quick qualitative detection method and fast quantitative measurement method for detecting of the chlorion of material detection field.
Background technology
Chlorion is most commonly seen a kind of anion in water and waste water, and the chloride ion content of excessive concentrations can cause drinking-water
Bitter saline taste, the salinization of soil, corrosive pipeline, plant growth are difficult, and are detrimental to health, it is therefore necessary to control the row of chlorion
Put concentration.Discharge standard of the current state sewage emission standard also not to chlorion makes corresponding requirements, and only some areas are marked
Standard has made relevant regulations to the chloride in waste water.
For chloride ion conductor in these water, national standard and power industry standard define many method of testings, such as:
Mole method, potentiometric titration, mercury salt titration, PCl electrode methods, Enrichment AAS, chromatography of ions etc., this
The problem of a little methods all have certain, such as equipment costliness, minute length, the problems such as applicability is not wide, it is therefore desirable to it is a kind of soon
Prompt determination of chloride ions.
The content of the invention
The invention provides a kind of cost is low, minute is short, the Quick qualitative detection method of the chlorion of strong applicability.
Quick qualitative detection method of the invention for the used chlorion that solves the above problems, including following step
Suddenly：
A, enough silver nitrate solutiones and certain volume and certain density standard Chloride Solution fully reacted；
B, the standard Chloride Solution for the treatment of react completely, and make after reacted solution is uniformly dispersed, to determine reaction solution and exist
The absorbance of one given wavelength；
C, Chloride Solution to be measured and silver nitrate solution is taken fully to react, wherein chlorine exsolution liquid to be measured and standard chlorion are molten
Liquid accumulates identical, the volume and concentration all same of the silver nitrate solution of this step and the silver nitrate solution of step A；
D, treat that Chloride Solution reacts completely in step C, and make after reacted solution is uniformly dispersed, with step B
The absorbance of reaction solution is determined at identical wavelength；
E, the absorbance of the absorbance of chlorion reaction solution to be measured and standard chlorine reactive ion solution is compared, such as
The absorbance of chlorion reaction solution really to be measured is more than the absorbance of standard chlorion reaction solution, then Chloride Solution to be measured
Chlorine ion concentration is higher than the chlorine ion concentration of standard Chloride Solution, if the absorbance of chlorion reaction solution to be measured is less than mark
The absorbance of quasi- chlorion reaction solution, then the chlorine ion concentration of Chloride Solution to be measured less than standard Chloride Solution chlorine from
Sub- concentration.
It is further reacted solution is uniformly dispersed using the method for ultrasonic wave added.
Present invention also offers a kind of cost is low, minute is short, the Quantitative detection side of the chlorion of strong applicability
Method.
Fast quantitative measurement method for detecting of the invention for the used chlorion that solves the above problems, including following step
Suddenly：
A, the finite concentration gradient of preparation same volume multiple standard Chloride Solutions,
It is B, multiple standard chlorions in same volume same concentrations and enough multiple silver nitrate solutiones and step A are molten
Liquid fully reacts；
C, the standard Chloride Solution for the treatment of react completely, and make after reacted solution is uniformly dispersed, to determine each standard chlorine
Absorbance of the ionic reaction solution at phase co-wavelength；
D, utilize the absorbance data corresponding to each standard Chloride Solution concentration measured in step C, draw standard
Absorbance curve；
E, take the Chloride Solution to be measured with same volume in step A fully to be reacted with enough silver nitrate solutiones, treat chlorine
Solion reacts completely, and makes after reacted solution is uniformly dispersed, with step C identical wavelength at measure reaction solution
Absorbance, the volume and concentration all same of the silver nitrate solution of this step and the silver nitrate solution of step A.
F, the absorbance by chlorion to be measured and standard absorbance curve draw the concentration of chlorion to be measured.
It is further reacted solution is uniformly dispersed using the method for ultrasonic wave added.
The beneficial effects of the invention are as follows：It is molten by chlorion relatively more to be measured using the method for the application fast qualitative detection
Liquid judges the height of Chloride Solution concentration relative standard Chloride Solution concentration to be measured with the absorptance of standard Chloride Solution
Low, it is not necessary to expensive instrument and equipment, its process is simple, and the spent time is also short.Using the application fast qualitative detection
Method, by setting up the standard curve of reaction Chloride Solution concentration and absorbance, passes through Chloride Solution absorbance to be measured
Value can find out the concentration of the corresponding Chloride Solution of the absorbance, this method on standard curve, it may be determined that different chlorine from
The concentration value of sub- solution, it is not necessary to expensive instrument and equipment, its process is simple, and the spent time is also short.
Embodiment
The Quick qualitative detection method of the chlorion of the present invention, including following steps：
A, enough silver nitrate solutiones and certain volume and certain density standard Chloride Solution fully reacted；Wherein
Standard Chloride Solution is as the standard to compare, and its volume can be specifically chosen according to actual conditions, in order to react and be easy to
Measure the principle for selection.Enough silver nitrate solutiones refer to that the amount of silver nitrate solution will meet the chlorion in Chloride Solution
Reaction, therefore can continue to pour into silver nitrate solution in Chloride Solution during practical operation completely, until mixed solution
Untill not reacting.
B, the standard Chloride Solution for the treatment of react completely, and make after reacted solution is uniformly dispersed, to determine reaction solution and exist
The absorbance of one given wavelength；
C, the Chloride Solution to be measured with same volume in step A is taken fully to be reacted with enough silver nitrate solutiones；
D, treat that Chloride Solution reacts completely in step C, and make after reacted solution is uniformly dispersed, with step B
The absorbance of reaction solution is determined at identical wavelength；
E, the absorbance of the absorbance of chlorion reaction solution to be measured and standard chlorine reactive ion solution is compared, such as
The absorbance of chlorion reaction solution really to be measured is more than the absorbance of standard chlorion reaction solution, then Chloride Solution to be measured
Chlorine ion concentration is higher than the chlorine ion concentration of standard Chloride Solution, if the absorbance of chlorion reaction solution to be measured is less than mark
The absorbance of quasi- chlorion reaction solution, then the chlorine ion concentration of Chloride Solution to be measured less than standard Chloride Solution chlorine from
Sub- concentration.
Using the method for the application fast qualitative detection, pass through Chloride Solution relatively more to be measured and standard Chloride Solution
Absorptance judges the height of Chloride Solution concentration relative standard Chloride Solution concentration to be measured, it is not necessary to which expensive instrument is set
Standby, its process is simple, and the spent time is also short.
Reacted solution is set to be uniformly dispersed using the method for ultrasonic wave added.In order to which the accuracy for increasing measurement can be utilized
Ultrasonic means, increase the degree of scatter of reaction solution.
The fast quantitative measurement method for detecting of the chlorion of the present invention, including following steps：
A, the finite concentration gradient of preparation same volume multiple standard Chloride Solutions, for example, can prepare 4 standards
Chloride Solution, its volume and concentration are followed successively by 10mL, 0.01mol/L；10mL、0.02mol/L；10mL、0.03mol/L；
10mL、0.04mol/L
It is B, multiple standard chlorions in same volume same concentrations and enough multiple silver nitrate solutiones and step A are molten
Liquid fully reacts；
C, the standard Chloride Solution for the treatment of react completely, and make after reacted solution is uniformly dispersed, to determine each standard chlorine
Absorbance of the ionic reaction solution at phase co-wavelength；
D, utilize the absorbance data corresponding to each standard Chloride Solution concentration measured in step C, draw standard
Absorbance curve；Due to after the completion of step C the corresponding absorbance of every kind of concentration, it is known that therefore can with Chloride Solution concentration and
Absorbance is that reference axis sets up rectangular coordinate system, and the measured value of each concentration can form a point in a coordinate system, many
The measured value for planting concentration forms a series of point in a coordinate system, can be fitted using the method for curve matching by these points
One curve, the curve be exactly any point on standard absorbance curve, the curve coordinate value to should absorbance institute it is anti-
The chlorine ion concentration answered.Wherein the method for matched curve can use common conic fitting, high order curve fitting etc..Can
To select the sparse degree of coordinate points according to actual conditions, the precision of the standard absorbance curve after its closeer fitting is put also more
It is high.
E, take the Chloride Solution to be measured with same volume in step A fully to be reacted with enough silver nitrate solutiones, treat chlorine
Solion reacts completely, and makes after reacted solution is uniformly dispersed, with step C identical wavelength at measure reaction solution
Absorbance, the volume and concentration all same of the silver nitrate solution of this step and the silver nitrate solution of step A；
F, the absorbance by chlorion to be measured and standard absorbance curve draw the concentration of chlorion to be measured.Treated measuring
After the absorbance for surveying solution, the point corresponding to the absorbance on curve is found, can by coordinate value of this on curve
With etc. chlorine ion concentration corresponding to it.
Reacted solution is set to be uniformly dispersed with the method for ultrasonic wave added.Made using the method for ultrasonic wave added reacted molten
Liquid is uniformly dispersed.In order to which the accuracy for increasing measurement can utilize ultrasonic means, increase the degree of scatter of reaction solution.
Using the method for the application fast qualitative detection, by the standard for setting up reaction Chloride Solution concentration and absorbance
Curve, the corresponding Chloride Solution of the absorbance can be found out by the value of Chloride Solution absorbance to be measured on standard curve
Concentration, this method, it may be determined that the concentration value of different Chloride Solutions, it is not necessary to expensive instrument and equipment, its process is simple,
The spent time is also short.
Whether embodiment 1 determines chlorinity in running water with the method for the present invention exceeded
Whether exceeded determine chlorine in running water；
The silver nitrate solution for measuring 100mL0.1mol/L is added after the qualified running water of 10mL fully reacts and be uniformly dispersed,
It is 1.4806 to determine its absorbance at 306nm wavelength.
Take polymer solution in water 10mL to be measured add 100mL0.1mol/L silver nitrate solution it is fully dispersed it is well mixed after survey
It is 2.7635 to determine it in 306nm wavelength absorbances, higher than 1.4806, so running water chloride ion content is exceeded.
Claims (4)
1. the Quick qualitative detection method of chlorion, it is characterised in that：Including following steps：
A, enough silver nitrate solutiones and certain volume and certain density standard Chloride Solution fully reacted；
B, the standard Chloride Solution for the treatment of react completely, and make after reacted solution is uniformly dispersed, to determine reaction solution certain
Absorbance at wavelength；
C, Chloride Solution to be measured and silver nitrate solution is taken fully to react, wherein chlorine exsolution liquid to be measured and standard Chloride Solution body
Product identical, the volume and concentration all same of the silver nitrate solution of this step and the silver nitrate solution of step A；
D, treat that Chloride Solution reacts completely in step C, and make after reacted solution is uniformly dispersed, identical with step B
Wavelength at determine reaction solution absorbance；
E, the absorbance of the absorbance of chlorion reaction solution to be measured and standard chlorine reactive ion solution is compared, if treated
Survey chlorion reaction solution absorbance be more than standard chlorion reaction solution absorbance, then the chlorine of Chloride Solution to be measured from
Sub- concentration is higher than the chlorine ion concentration of standard Chloride Solution, if the absorbance of chlorion reaction solution to be measured is less than standard chlorine
The absorbance of ionic reaction solution, then the chlorine ion concentration of Chloride Solution to be measured is dense less than the chlorion of standard Chloride Solution
Degree.
2. the Quick qualitative detection method of chlorion as claimed in claim 1, it is characterised in that：Using the method for ultrasonic wave added
Reacted solution is set to be uniformly dispersed.
3. the fast quantitative measurement method for detecting of chlorion, it is characterised in that：Including following steps：
A, the finite concentration gradient of preparation same volume multiple standard Chloride Solutions；
B, multiple standard Chloride Solutions in same volume same concentrations and enough multiple silver nitrate solutiones and step A are filled
Divide reaction；
C, the standard Chloride Solution for the treatment of react completely, and make after reacted solution is uniformly dispersed, to determine each standard chlorion
Absorbance of the reaction solution at phase co-wavelength；
D, utilize the absorbance data corresponding to each standard Chloride Solution concentration measured in step C, draw standard extinction
Write music line；
E, take the Chloride Solution to be measured with same volume in step A fully to be reacted with enough silver nitrate solutiones, treat chlorion
Solution reacts completely, and makes after reacted solution is uniformly dispersed, with step C identical wavelength at measure the suction of reaction solution
The volume and concentration all same of luminosity, the silver nitrate solution of this step and the silver nitrate solution of step A；
F, the absorbance by chlorion to be measured and standard absorbance curve draw the concentration of chlorion to be measured.
4. the fast quantitative measurement method for detecting of chlorion as claimed in claim 3, it is characterised in that：Using the method for ultrasonic wave added
Reacted solution is set to be uniformly dispersed.
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Cited By (4)
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| CN108760663A (en) * | 2018-04-28 | 2018-11-06 | 北京建工环境修复股份有限公司 | The rapid detection method of chlorinty and the rapid identification method of chlorohydrocarbon component type in a kind of chlorohydrocarbon |
| CN109540817A (en) * | 2018-12-19 | 2019-03-29 | 中核北方核燃料元件有限公司 | The measuring method of chlorinity in a kind of uranium zircaloy |
| CN112986163A (en) * | 2021-02-07 | 2021-06-18 | 浙江理工大学 | Chloride ion concentration detection method based on spectral analysis |
| CN114166817A (en) * | 2021-11-22 | 2022-03-11 | 国网福建省电力有限公司 | Method for rapidly, qualitatively and quantitatively analyzing trace chloride ions |
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