CN108956514A - A kind of portable long light path ammonia ultraviolet spectra detection method of high temperature - Google Patents
A kind of portable long light path ammonia ultraviolet spectra detection method of high temperature Download PDFInfo
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- CN108956514A CN108956514A CN201810921318.1A CN201810921318A CN108956514A CN 108956514 A CN108956514 A CN 108956514A CN 201810921318 A CN201810921318 A CN 201810921318A CN 108956514 A CN108956514 A CN 108956514A
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- ultraviolet
- absorption cell
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- light
- spectrometer
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000002211 ultraviolet spectrum Methods 0.000 title claims abstract description 49
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000010521 absorption reaction Methods 0.000 claims abstract description 93
- 238000001228 spectrum Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 6
- 230000011514 reflex Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 70
- 238000000034 method Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000041 tunable diode laser absorption spectroscopy Methods 0.000 description 1
Classifications
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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
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, it is characterized in that, the following steps are included: S1: being sampled from sample source, S2: configuration ultraviolet spectra detects equipment S3: ammonia sample is passed through in gas absorption cell, it opens ultraviolet spectra and detects equipment, ultraviolet source generates ultraviolet light, ultraviolet light is entered in gas absorption cell by collimator, reflection microscope group internal reflection of the ultraviolet light in ultraviolet light, it projects from the other side in gas absorption cell, is received by spectrometer；S4: the data that computer obtains spectrometer are analyzed and are handled, beneficial effect is: after ammonia is passed through gas absorption cell, ultraviolet light irradiation is into gas absorption cell, multiple reflections under the action of reflecting microscope group, gas absorption cell is projected, is detected by ultraviolet of the spectrometer to injection, obtains testing result, detection accuracy is high, and detection effect is good.
Description
Technical field
The present invention relates to ammonia detection technique field more particularly to a kind of portable long light path ammonia ultraviolet spectra inspections of high temperature
Survey method.
Background technique
There are many analysis methods for ammonia measurement at present, wherein main have electrochemical process, colorimetric method, gas chromatography, inspection
Determine tube method and tunable diode laser absorption spectroscopy method etc., various analysis methods all have advantage and disadvantage.As electrochemical process is equal
There is fast response time, high sensitivity, small in size, but there is sensor service life is short, need to change sensor every year,
And there are when multiple gases the shortcomings that poor anti jamming capability in environment.Although colorimetric method is classical analysis method, need a variety of
Chemical reagent is reacted, and large quantity of air sample need to be acquired when ammonia density is all lower in environment can just meet measurement request, is existed
Time-consuming and laborious disadvantage.Gas chromatography has the characteristics that analysis is accurate, intuitive display, but because operation sequence is complicated, volume is huge
Greatly, the disadvantages of cannot carrying.The disadvantages of though calibrating tube method has the features such as easy to operate, easy to use, big there are measurement error.
Summary of the invention
The invention proposes a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, to solve above-mentioned background skill
The problem of being proposed in art.
The invention proposes a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, comprising the following steps:
S1: being sampled from sample source, by container collection sample, and it is closed stand-by；
S2: configuration ultraviolet spectra detects equipment, and it includes ultraviolet source, gas absorption cell, spectrum that ultraviolet spectra, which detects equipment,
Instrument and computer debug ultraviolet source and spectrometer, and ultraviolet source is set on front side of gas absorption cell, and spectrometer is set to gas
The absorption cell other side, absorption cell is interior to be equipped with reflection microscope group, and computer is connect with spectrometer, and sensor is integrated in computer；
S3: ammonia sample is passed through in gas absorption cell, is opened ultraviolet spectra and is detected equipment, ultraviolet source generates ultraviolet
Light, ultraviolet light are entered in gas absorption cell by collimator, and ultraviolet light is absorbed in the reflection microscope group internal reflection of ultraviolet light from gas
The other side in pond is projected, and is received by spectrometer；
S4: the spectrum of the ultraviolet light of the outflow gas absorption cell received is collected by spectrometer, and computer is to spectrometer
The data of acquisition are analyzed and are handled, and are compared, are detected with the ultraviolet spectrum initially entered in gas absorption cell
Structure, and save corresponding data；
S5: setting control group changes the temperature in gas absorption cell, repeats S3, S4 step, obtain different temperatures and difference
Ultraviolet spectrum data under air pressure.
Preferably, reflection microscope group includes into light reflection mirror, goes out light reflection mirror and spherical mirror, and spherical mirror quantity is multi-disc, is entered
Light reflection mirror is installed on gas absorption cell inlet, and light reflection mirror is installed on gas absorption cell exit, multi-disc spherical mirror phase out
Mutually interval shifts to install, and enters light reflection mirror, goes out light reflection mirror and multi-disc spherical mirror composition reflective optical system.
Preferably, ultraviolet light is entered by gas absorption cell inlet, reflexes to spherical mirror, ultraviolet light by entering light reflection mirror
It is successively reflected in multi-disc spherical mirror, ultraviolet light reflects after the reflection of multi-disc spherical mirror with light reflection mirror out, finally by going out light
Reflecting mirror reflects gas absorption cell.
Preferably, the ultraviolet light order of reflection of the reflecting system is 5 times.
Preferably, baroceptor, temperature sensor and ammonia concentration sensor are installed in gas absorption cell.
Preferably, computer generates XY figure, and different data are showed by XY figure.
The portable long light path ammonia ultraviolet spectra detection method of a kind of high temperature proposed by the present invention, beneficial effect are: should
Method is easy to operate, easy to detect, and after ammonia is passed through gas absorption cell, ultraviolet light irradiation is into gas absorption cell, ultraviolet
Multiple reflections under the action of reflecting microscope group, finally project gas absorption cell, are carried out by ultraviolet of the spectrometer to injection
Detection generates correlation data, obtains testing result, and detection accuracy is high, and detection effect is good.
Specific embodiment
It is next combined with specific embodiments below that the present invention will be further described.
Embodiment 1
The invention proposes a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, comprising the following steps:
S1: being sampled from sample source, by container collection sample, and it is closed stand-by；
S2: configuration ultraviolet spectra detects equipment, and it includes ultraviolet source, gas absorption cell, spectrum that ultraviolet spectra, which detects equipment,
Instrument and computer debug ultraviolet source and spectrometer, and ultraviolet source is set on front side of gas absorption cell, and spectrometer is set to gas
The absorption cell other side, absorption cell is interior to be equipped with reflection microscope group, and reflection microscope group includes into light reflection mirror, goes out light reflection mirror and spherical mirror,
Spherical mirror quantity is multi-disc, enters light reflection mirror and is installed on gas absorption cell inlet, light reflection mirror is installed on gas absorption cell out
Exit, multi-disc spherical mirror, which is spaced apart from each other, to be shifted to install, and enters light reflection mirror, out light reflection mirror and multi-disc spherical mirror composition optics is anti-
Penetrate system, computer is connect with spectrometer, and sensor is integrated in computer, be equipped in gas absorption cell baroceptor,
Temperature sensor and ammonia concentration sensor；
S3: ammonia sample is passed through in gas absorption cell, is opened ultraviolet spectra and is detected equipment, ultraviolet source generates ultraviolet
Light, ultraviolet light are entered in gas absorption cell by collimator, and ultraviolet light is in the reflection microscope group internal reflection of ultraviolet light, and ultraviolet light is by gas
Body absorption cell inlet enters, and reflexes to spherical mirror by entering light reflection mirror, and ultraviolet light successively reflects in multi-disc spherical mirror, purple
Outer light reflects after the reflection of multi-disc spherical mirror with light reflection mirror out, finally reflects gas absorption cell by going out light reflection mirror, instead
The ultraviolet light order of reflection for penetrating system is 5 times, is received by spectrometer；
S4: the spectrum of the ultraviolet light of the outflow gas absorption cell received is collected by spectrometer, and computer is to spectrometer
The data of acquisition are analyzed and are handled, and are compared, are detected with the ultraviolet spectrum initially entered in gas absorption cell
Structure, and save corresponding data；
S5: setting control group changes the temperature in gas absorption cell, and the changing value of temperature is 308k, repeats S3, S4 step
Suddenly, the ultraviolet spectrum data under different temperatures and different air pressures are obtained, computer generates XY figure, and different data are schemed by XY
Show.
Embodiment 2
The invention proposes a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, comprising the following steps:
S1: being sampled from sample source, by container collection sample, and it is closed stand-by；
S2: configuration ultraviolet spectra detects equipment, and it includes ultraviolet source, gas absorption cell, spectrum that ultraviolet spectra, which detects equipment,
Instrument and computer debug ultraviolet source and spectrometer, and ultraviolet source is set on front side of gas absorption cell, and spectrometer is set to gas
The absorption cell other side, absorption cell is interior to be equipped with reflection microscope group, and reflection microscope group includes into light reflection mirror, goes out light reflection mirror and spherical mirror,
Spherical mirror quantity is multi-disc, enters light reflection mirror and is installed on gas absorption cell inlet, light reflection mirror is installed on gas absorption cell out
Exit, multi-disc spherical mirror, which is spaced apart from each other, to be shifted to install, and enters light reflection mirror, out light reflection mirror and multi-disc spherical mirror composition optics is anti-
Penetrate system, computer is connect with spectrometer, and sensor is integrated in computer, be equipped in gas absorption cell baroceptor,
Temperature sensor and ammonia concentration sensor；
S3: ammonia sample is passed through in gas absorption cell, is opened ultraviolet spectra and is detected equipment, ultraviolet source generates ultraviolet
Light, ultraviolet light are entered in gas absorption cell by collimator, and ultraviolet light is in the reflection microscope group internal reflection of ultraviolet light, and ultraviolet light is by gas
Body absorption cell inlet enters, and reflexes to spherical mirror by entering light reflection mirror, and ultraviolet light successively reflects in multi-disc spherical mirror, purple
Outer light reflects after the reflection of multi-disc spherical mirror with light reflection mirror out, finally reflects gas absorption cell by going out light reflection mirror, instead
The ultraviolet light order of reflection for penetrating system is 5 times, is received by spectrometer；
S4: the spectrum of the ultraviolet light of the outflow gas absorption cell received is collected by spectrometer, and computer is to spectrometer
The data of acquisition are analyzed and are handled, and are compared, are detected with the ultraviolet spectrum initially entered in gas absorption cell
Structure, and save corresponding data；
S5: setting control group changes the temperature in gas absorption cell, and the changing value of temperature is 330k, repeats S3, S4 step
Suddenly, the ultraviolet spectrum data under different temperatures and different air pressures are obtained, computer generates XY figure, and different data are schemed by XY
Show.
Embodiment 3
The invention proposes a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, comprising the following steps:
S1: being sampled from sample source, by container collection sample, and it is closed stand-by；
S2: configuration ultraviolet spectra detects equipment, and it includes ultraviolet source, gas absorption cell, spectrum that ultraviolet spectra, which detects equipment,
Instrument and computer debug ultraviolet source and spectrometer, and ultraviolet source is set on front side of gas absorption cell, and spectrometer is set to gas
The absorption cell other side, absorption cell is interior to be equipped with reflection microscope group, and reflection microscope group includes into light reflection mirror, goes out light reflection mirror and spherical mirror,
Spherical mirror quantity is multi-disc, enters light reflection mirror and is installed on gas absorption cell inlet, light reflection mirror is installed on gas absorption cell out
Exit, multi-disc spherical mirror, which is spaced apart from each other, to be shifted to install, and enters light reflection mirror, out light reflection mirror and multi-disc spherical mirror composition optics is anti-
Penetrate system, computer is connect with spectrometer, and sensor is integrated in computer, be equipped in gas absorption cell baroceptor,
Temperature sensor and ammonia concentration sensor；
S3: ammonia sample is passed through in gas absorption cell, is opened ultraviolet spectra and is detected equipment, ultraviolet source generates ultraviolet
Light, ultraviolet light are entered in gas absorption cell by collimator, and ultraviolet light is in the reflection microscope group internal reflection of ultraviolet light, and ultraviolet light is by gas
Body absorption cell inlet enters, and reflexes to spherical mirror by entering light reflection mirror, and ultraviolet light successively reflects in multi-disc spherical mirror, purple
Outer light reflects after the reflection of multi-disc spherical mirror with light reflection mirror out, finally reflects gas absorption cell by going out light reflection mirror, instead
The ultraviolet light order of reflection for penetrating system is 5 times, is received by spectrometer；
S4: the spectrum of the ultraviolet light of the outflow gas absorption cell received is collected by spectrometer, and computer is to spectrometer
The data of acquisition are analyzed and are handled, and are compared, are detected with the ultraviolet spectrum initially entered in gas absorption cell
Structure, and save corresponding data；
S5: setting control group changes the temperature in gas absorption cell, and the changing value of temperature is 365k, repeats S3, S4 step
Suddenly, the ultraviolet spectrum data under different temperatures and different air pressures are obtained, computer generates XY figure, and different data are schemed by XY
Show.
Embodiment 4
The invention proposes a kind of portable long light path ammonia ultraviolet spectra detection methods of high temperature, comprising the following steps:
S1: being sampled from sample source, by container collection sample, and it is closed stand-by；
S2: configuration ultraviolet spectra detects equipment, and it includes ultraviolet source, gas absorption cell, spectrum that ultraviolet spectra, which detects equipment,
Instrument and computer debug ultraviolet source and spectrometer, and ultraviolet source is set on front side of gas absorption cell, and spectrometer is set to gas
The absorption cell other side, absorption cell is interior to be equipped with reflection microscope group, and reflection microscope group includes into light reflection mirror, goes out light reflection mirror and spherical mirror,
Spherical mirror quantity is multi-disc, enters light reflection mirror and is installed on gas absorption cell inlet, light reflection mirror is installed on gas absorption cell out
Exit, multi-disc spherical mirror, which is spaced apart from each other, to be shifted to install, and enters light reflection mirror, out light reflection mirror and multi-disc spherical mirror composition optics is anti-
Penetrate system, computer is connect with spectrometer, and sensor is integrated in computer, be equipped in gas absorption cell baroceptor,
Temperature sensor and ammonia concentration sensor；
S3: ammonia sample is passed through in gas absorption cell, is opened ultraviolet spectra and is detected equipment, ultraviolet source generates ultraviolet
Light, ultraviolet light are entered in gas absorption cell by collimator, and ultraviolet light is in the reflection microscope group internal reflection of ultraviolet light, and ultraviolet light is by gas
Body absorption cell inlet enters, and reflexes to spherical mirror by entering light reflection mirror, and ultraviolet light successively reflects in multi-disc spherical mirror, purple
Outer light reflects after the reflection of multi-disc spherical mirror with light reflection mirror out, finally reflects gas absorption cell by going out light reflection mirror, instead
The ultraviolet light order of reflection for penetrating system is 5 times, is received by spectrometer；
S4: the spectrum of the ultraviolet light of the outflow gas absorption cell received is collected by spectrometer, and computer is to spectrometer
The data of acquisition are analyzed and are handled, and are compared, are detected with the ultraviolet spectrum initially entered in gas absorption cell
Structure, and save corresponding data；
S5: setting control group changes the temperature in gas absorption cell, and the changing value of temperature is 397k, repeats S3, S4 step
Suddenly, the ultraviolet spectrum data under different temperatures and different air pressures are obtained, computer generates XY figure, and different data are schemed by XY
Show.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of portable long light path ammonia ultraviolet spectra detection method of high temperature, which comprises the following steps:
S1: being sampled from sample source, by container collection sample, and it is closed stand-by；
S2: configuration ultraviolet spectra detect equipment, ultraviolet spectra detection equipment include, ultraviolet source, gas absorption cell, spectrometer and
Computer debugs ultraviolet source and spectrometer, and ultraviolet source is set on front side of gas absorption cell, and spectrometer is set to gas absorption
The pond other side, absorption cell is interior to be equipped with reflection microscope group, and computer is connect with spectrometer, and sensor is integrated in computer；
S3: ammonia sample is passed through in gas absorption cell, is opened ultraviolet spectra and is detected equipment, ultraviolet source generates ultraviolet light, purple
Outer light is entered in gas absorption cell by collimator, ultraviolet light ultraviolet light reflection microscope group internal reflection, out of gas absorption cell
The other side project, received by spectrometer；
S4: the spectrum of the ultraviolet light of the outflow gas absorption cell received is collected by spectrometer, and computer obtains spectrometer
Data analyzed and handled, be compared with the ultraviolet spectrum initially entered in gas absorption cell, obtain detection structure,
And save corresponding data；
S5: setting control group changes the temperature in gas absorption cell, and the changing value of temperature is 300K-400k, repeats S3, S4 step
Suddenly, the ultraviolet spectrum data under different temperatures and different air pressures are obtained.
2. the portable long light path ammonia ultraviolet spectra detection method of a kind of high temperature according to claim 1, it is characterised in that:
Reflection microscope group includes into light reflection mirror, goes out light reflection mirror and spherical mirror, and spherical mirror quantity is multi-disc, enters light reflection mirror and is installed on gas
Body absorption cell inlet, light reflection mirror is installed on gas absorption cell exit out, and multi-disc spherical mirror, which is spaced apart from each other, to be shifted to install, and enters
Light reflection mirror goes out light reflection mirror and multi-disc spherical mirror composition reflective optical system.
3. the portable long light path ammonia ultraviolet spectra detection method of a kind of high temperature according to claim 2, it is characterised in that: ultraviolet
Light is entered by gas absorption cell inlet, reflexes to spherical mirror by entering light reflection mirror, ultraviolet light in multi-disc spherical mirror successively
Reflection, ultraviolet light reflect after the reflection of multi-disc spherical mirror with light reflection mirror out, finally reflect gas suction by going out light reflection mirror
Receives pond.
4. the portable long light path ammonia ultraviolet spectra detection method of a kind of high temperature according to claim 3, it is characterised in that: described
The ultraviolet light order of reflection of reflecting system is 5 times.
5. the portable long light path ammonia ultraviolet spectra detection method of a kind of high temperature according to claim 1, it is characterised in that: gas
Baroceptor, temperature sensor and ammonia concentration sensor are installed in absorption cell.
6. the portable long light path ammonia ultraviolet spectra detection method of a kind of high temperature according to claim 1, it is characterised in that: calculate
Machine generates XY figure, and different data are showed by XY figure.
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| CN201810921318.1A CN108956514A (en) | 2018-08-14 | 2018-08-14 | A kind of portable long light path ammonia ultraviolet spectra detection method of high temperature |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675524A (en) * | 2016-01-14 | 2016-06-15 | 广东伟创科技开发有限公司 | Flue gas analyzing system and method |
| CN106198422A (en) * | 2016-08-31 | 2016-12-07 | 青岛博睿光电科技有限公司 | A kind of portable difference absorption spectrum method volatile organic matter gas monitoring instrument |
| CN207662793U (en) * | 2018-01-16 | 2018-07-27 | 武汉敢为科技有限公司 | A kind of H2S gas ultraviolet spectra detection devices |
-
2018
- 2018-08-14 CN CN201810921318.1A patent/CN108956514A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675524A (en) * | 2016-01-14 | 2016-06-15 | 广东伟创科技开发有限公司 | Flue gas analyzing system and method |
| CN106198422A (en) * | 2016-08-31 | 2016-12-07 | 青岛博睿光电科技有限公司 | A kind of portable difference absorption spectrum method volatile organic matter gas monitoring instrument |
| CN207662793U (en) * | 2018-01-16 | 2018-07-27 | 武汉敢为科技有限公司 | A kind of H2S gas ultraviolet spectra detection devices |
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Application publication date: 20181207 |
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