CN105699310A - Wide-range chlorine dioxide gas concentration detection method - Google Patents
Wide-range chlorine dioxide gas concentration detection method Download PDFInfo
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- CN105699310A CN105699310A CN201610045055.3A CN201610045055A CN105699310A CN 105699310 A CN105699310 A CN 105699310A CN 201610045055 A CN201610045055 A CN 201610045055A CN 105699310 A CN105699310 A CN 105699310A
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- chlorine dioxide
- dioxide gas
- wide
- cuvette
- ultraviolet light
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- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000004155 Chlorine dioxide Substances 0.000 title claims abstract description 53
- 235000019398 chlorine dioxide Nutrition 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000001276 controlling effect Effects 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000002835 absorbance Methods 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000002798 spectrophotometry method Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 230000008520 organization Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a wide-range chlorine dioxide gas concentration detection method. The method comprises the concrete steps of (1) enabling chlorine dioxide gas to be detected to enter an absorption cell under the action of a gas pump after being measured by a flow meter, wherein the chlorine dioxide in the gas is completely absorbed by quantitative absorbing liquid in the absorption cell and the residual gas is discharged through an exhaust pipeline; (2) enabling the absorbing liquid to circulate between a cuvette and the absorption cell in a detection room under the action of a circulating pump; (3) using an ultraviolet light-emitting diode with the central wavelength of 360nm as a light source, and enabling ultraviolet light to pass through the absorbing liquid to be detected in the cuvette; (4) detecting the ultraviolet light which passes through the cuvette and then is received by a detector, converting the ultraviolet light into electrical signals and transmitting the electrical signals into a signal processor; (5) using a control unit to read the signals processed by the signal processor, and carrying out operation to obtain the concentration of the chlorine dioxide gas. After the method is used, the wide-range detection for the chlorine dioxide gas concentration can be realized by regulating and controlling the amounts of the absorbed chlorine dioxide gas and the absorbing liquid.
Description
Technical field
The present invention relates to gas concentration detection field, be specifically related to a kind of wide-range chlorine dioxide gas concentration detection method。
Background technology
Chlorine dioxide is confirmed as safe efficient, nontoxic strong fungicide by World Health Organization (WHO), and its safety is decided to be AI level by World Health Organization (WHO) (WHO)。The experiment proved that, chlorine dioxide sterilization has wide spectrum, the characteristic of (carcinogenic, teratogenesis, mutagenesis) without three causing, currently mainly the field such as application water process, fruit freshness preserving, food safety control, medical apparatus sterilizing, space disinfection。
Relative to liquid chlorine dioxide, Chlorine Dioxide Gas is due to the high-efficiency broad spectrum bactericidal property of its excellence and relatively low harmful by-products, using it for space disinfection is novel prevention and control, a Prevention Technique, is particularly well-suited to the sterilizing of microorganism in large area space environment。But when the chlorine dioxide concentration in air is too high, except human organ is had intense stimulus effect, also have certain explosion hazard。Therefore, produce and the safety of life and property of people in use procedure to ensure, the concentration of the chlorine dioxide in air must be carried out strict Detection & Controling。
Domestic scholars Fang Chiguang et al. adopts chlorine dioxide content in determined by ultraviolet spectrophotometry disinfection agent of chlorine dioxide, and result shows that chlorine dioxide has characteristic absorption peak at 360nm place, can as qualitative foundation。Domestic scholars execute along et al. utilize the content of determined by ultraviolet spectrophotometry chlorine dioxide, result shows that the method can measure the concentration aqueous solution of chlorine dioxide at more than 1.0mg/L fast and accurately。
Domestic scholars clothing grain husk et al. has carried out " the chlorine dioxide gas concentration on-line checking based on UV absorptiometry is studied ", but range is only up to 12mg/L, and the actual standard curve obtained is bigger with theory analysis difference。The patent No. be 201210157611.8 Chinese invention patent disclose " a kind of high concentration of chlorine dioxide detection method and colour comparison detection apparatus " thereof, but detection when the method and device are primarily adapted for use in chlorine dioxide gas concentration higher than 250mg/L。The patent No. be 201210308828.4 Chinese invention patent disclose " in a kind of quick detection air the method for Chlorine Dioxide Gas concentration ", but method is only applicable to the chlorine dioxide concentration within the scope of 60-140mg/L is detected。
Summary of the invention
Problem to be solved by this invention is, overcomes the shortcoming and defect of prior art, it is provided that a kind of wide-range chlorine dioxide gas concentration detection method。
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of wide-range chlorine dioxide gas concentration detection method, comprise the steps: that chlorine dioxide to be measured enters absorption cell 3 under the effect of air pump 1 after effusion meter 2 measures, in gas, chlorine dioxide is fully absorbed by the quantitative adsorption liquid in absorption cell 3, and residual gas is discharged through discharge duct 6；Absorb liquid under the effect of circulating pump 4, circulate between the cuvette 5 in absorption cell 3 and sensing chamber 12；Use centre wavelength be the UV LED of 360nm as light source 7, make ultraviolet light pass through the absorption liquid to be measured in cuvette 5；Detection detector 8 accepts to pass through the ultraviolet light of described cuvette and be translated into the signal of telecommunication to pass to signal processor 9 again；Control unit 11 read described signal processor processes complete after letter after go forward side by side row operation obtain chlorine dioxide concentration。
Light source, air chamber, cuvette and detection detector are integrated into the integrated detector of closing, make the light that light source sends in a path closed, do not affected by extraneous light。
The light source of described ultraviolet spectrophotometry adopts centre wavelength to be the UV LED of 360nm。
The wide-range to chlorine dioxide gas concentration can be realized detect by regulating and controlling to suck chlorine dioxide and absorption liquid measure。
Accompanying drawing explanation
Fig. 1 is the block diagram of this detection method: 1-air pump；2-effusion meter；3-absorption cell；4-circulating pump；5-cuvette；6-discharge duct；7-light source；8-detects detector；9-signal processor；10-control circuit for light source；11-control unit；12-sensing chamber。
Detailed description of the invention.
Hereinafter embodiments of the invention are illustrated, it will be appreciated that embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention。
Embodiment 1:
The air inflow controlling chlorine dioxide to be measured is 1000L, and the amount absorbing liquid is 100mL, detects, comprises the steps:
Chlorine dioxide to be measured enters absorption cell 3 under the effect of air pump 1 after effusion meter 2 measures, and in gas, chlorine dioxide is fully absorbed by the quantitative adsorption liquid in absorption cell 3, and residual gas is discharged through discharge duct 6；Absorb liquid under the effect of circulating pump 4, circulate between the cuvette 5 in absorption cell 3 and sensing chamber 12；Use centre wavelength be the UV LED of 360nm as light source 7, make ultraviolet light pass through the absorption liquid to be measured in cuvette 5；Detection detector 8 accepts to pass through the ultraviolet light of described cuvette and be translated into the signal of telecommunication to pass to signal processor 9 again；Control unit 11 read described signal processor processes complete after signal, show that now absorbance is 0.1658, and carry out conversion obtain chlorine dioxide concentration be 0.2mg/m3。
Embodiment 2:
The air inflow controlling chlorine dioxide to be measured is 40L, and the amount absorbing liquid is 100mL, detects, and testing process is identical with embodiment 1, and result shows that now absorbance is 0.1935, and the concentration of chlorine dioxide is 10mg/m3。
Embodiment 3:
The air inflow controlling chlorine dioxide to be measured is 10L, and the amount absorbing liquid determines 100mL, detects, and testing process is identical with embodiment 1, and result shows that now absorbance is 0.2211, and the concentration of chlorine dioxide is 600mg/m3。
Embodiment 4:
The air inflow controlling chlorine dioxide to be measured is 900L, and the amount absorbing liquid determines 200mL, detects, and testing process is identical with embodiment 1, and result shows that now absorbance is 0.2349, and the concentration of chlorine dioxide is 0.15mg/m3。
Embodiment 5:
The air inflow controlling chlorine dioxide to be measured is 70L, and the amount absorbing liquid determines 200mL, detects, and testing process is identical with embodiment 1, and result shows that now absorbance is 0.2142, and the concentration of chlorine dioxide is 15mg/m3。
Embodiment 6:
The air inflow controlling chlorine dioxide to be measured is 5L, and the amount absorbing liquid determines 200mL, detects, and testing process is identical with embodiment 1, and result shows that now absorbance is 0.2621, and the concentration of chlorine dioxide is 900mg/m3。
Claims (2)
1. a wide-range chlorine dioxide gas concentration detection method, it is characterised in that comprise the following steps:
1). chlorine dioxide to be measured enters absorption cell (3) under the effect of air pump (1) after effusion meter (2) measures, in gas, chlorine dioxide is fully absorbed by the quantitative adsorption liquid in absorption cell (3), and residual gas is discharged through discharge duct (6)；
2). absorb liquid under the effect of circulating pump (4), circulate between the cuvette (5) in absorption cell (3) and sensing chamber (12)；
3). use centre wavelength be the UV LED of 360nm as light source (7), make ultraviolet light pass through the absorption liquid to be measured in cuvette (5)；
4). detection detector (8) accepts to pass through the ultraviolet light of described cuvette and be translated into the signal of telecommunication to pass to signal processor (9) again；
5). control unit (11) read described signal processor processes complete after letter after go forward side by side row operation obtain chlorine dioxide concentration。
2. a kind of wide-range chlorine dioxide gas concentration detection method according to claim 1, it is characterised in that: the wide-range to chlorine dioxide gas concentration can be realized detect by regulating and controlling to suck chlorine dioxide and absorption liquid measure。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045055.3A CN105699310A (en) | 2016-01-22 | 2016-01-22 | Wide-range chlorine dioxide gas concentration detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045055.3A CN105699310A (en) | 2016-01-22 | 2016-01-22 | Wide-range chlorine dioxide gas concentration detection method |
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| CN105699310A true CN105699310A (en) | 2016-06-22 |
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| CN201610045055.3A Pending CN105699310A (en) | 2016-01-22 | 2016-01-22 | Wide-range chlorine dioxide gas concentration detection method |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113350A (en) * | 1981-01-06 | 1982-07-14 | Toyota Motor Corp | Determination of chlorine dioxide by ultraviolet spectrophotometery |
| JPH0961348A (en) * | 1995-08-28 | 1997-03-07 | Mitsubishi Heavy Ind Ltd | Continuous ammonia concentration measuring method |
| JP2005315711A (en) * | 2004-04-28 | 2005-11-10 | Ishikawajima Harima Heavy Ind Co Ltd | Gas analyzer |
| CN101105448A (en) * | 2007-08-01 | 2008-01-16 | 山东省科学院海洋仪器仪表研究所 | Method for measuring total organic carbon by ozone oxidation and ultraviolet scanning spectrum integral way |
| CN101502735A (en) * | 2008-02-04 | 2009-08-12 | 南京理工大学 | High-efficient trapping system for micro-nano powder dust in air |
| CN101532998A (en) * | 2009-04-23 | 2009-09-16 | 隆昌山川精密焊管有限责任公司 | A method for detecting chlorine dioxide content in life drinking water |
| WO2010006042A1 (en) * | 2008-07-08 | 2010-01-14 | Tbs Technologies, Llc | Apparatus and methods for sensing of chlorine dioxide |
| CN202710577U (en) * | 2012-07-23 | 2013-01-30 | 田康 | Peroxide online detection device |
| CN104020119A (en) * | 2013-02-28 | 2014-09-03 | 南京理工大学 | Wet type ultraviolet-absorption-method online detection method for micro-nano aerosol of production environment |
| CN203858201U (en) * | 2014-05-30 | 2014-10-01 | 华北电力科学研究院有限责任公司 | Automatic rapid detection system for trace chloride ions in power plant water vapour |
| WO2015193625A1 (en) * | 2014-06-18 | 2015-12-23 | Environnement Sa | Instrument and method for measuring the concentration of ozone |
| US9551652B2 (en) * | 2014-11-25 | 2017-01-24 | Takimotogiken Kogyo Co., Ltd. | Chlorine dioxide gas concentration measuring apparatus |
-
2016
- 2016-01-22 CN CN201610045055.3A patent/CN105699310A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57113350A (en) * | 1981-01-06 | 1982-07-14 | Toyota Motor Corp | Determination of chlorine dioxide by ultraviolet spectrophotometery |
| JPH0961348A (en) * | 1995-08-28 | 1997-03-07 | Mitsubishi Heavy Ind Ltd | Continuous ammonia concentration measuring method |
| JP2005315711A (en) * | 2004-04-28 | 2005-11-10 | Ishikawajima Harima Heavy Ind Co Ltd | Gas analyzer |
| CN101105448A (en) * | 2007-08-01 | 2008-01-16 | 山东省科学院海洋仪器仪表研究所 | Method for measuring total organic carbon by ozone oxidation and ultraviolet scanning spectrum integral way |
| CN101502735A (en) * | 2008-02-04 | 2009-08-12 | 南京理工大学 | High-efficient trapping system for micro-nano powder dust in air |
| WO2010006042A1 (en) * | 2008-07-08 | 2010-01-14 | Tbs Technologies, Llc | Apparatus and methods for sensing of chlorine dioxide |
| CN101532998A (en) * | 2009-04-23 | 2009-09-16 | 隆昌山川精密焊管有限责任公司 | A method for detecting chlorine dioxide content in life drinking water |
| CN202710577U (en) * | 2012-07-23 | 2013-01-30 | 田康 | Peroxide online detection device |
| CN104020119A (en) * | 2013-02-28 | 2014-09-03 | 南京理工大学 | Wet type ultraviolet-absorption-method online detection method for micro-nano aerosol of production environment |
| CN203858201U (en) * | 2014-05-30 | 2014-10-01 | 华北电力科学研究院有限责任公司 | Automatic rapid detection system for trace chloride ions in power plant water vapour |
| WO2015193625A1 (en) * | 2014-06-18 | 2015-12-23 | Environnement Sa | Instrument and method for measuring the concentration of ozone |
| US9551652B2 (en) * | 2014-11-25 | 2017-01-24 | Takimotogiken Kogyo Co., Ltd. | Chlorine dioxide gas concentration measuring apparatus |
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Application publication date: 20160622 |