JP2013127455A - Device and method for measuring oxidation reduction potential of air - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in which the environmental pollution including air pollution, soil pollution and complex environmental pollution causes a variety of diseases due to which human beings and animals requiring water, air and food to live cannot live in a good condition, despite the progress of the life-prolonging treatment, and therefore medical expenses for curing the diseases have been significantly increasing every year.SOLUTION: By using the device for measuring the oxidation reduction potential of air of the present invention, measurement and comparison are performed with respect to the inside of a sick house that is contaminated by chemicals and an office building, a place where vehicles passing through while discharging carbon dioxide (CO2), the atmospheric air inside and outside a room where an air refresher or the like is used, and the air at a place where the air is discharged from an urban building. As a result, as illustrated in Table 1, it has become clear that the reasons why people desire healing in a deep forest, the fresh air generated near a waterfall, the beach air and the plateau air act on the reduction significance in oxidation reduction potential. The device for measuring oxidation reduction potential of air and the measuring method enables a user to check the oxidation-reduction reaction of air which is indispensable to life support and to take an early action in order to obtain safe and good air for health maintenance.

Description

Technology

The present invention captures the humidity contained in the atmosphere (that is, in the air), measures the activity ratio of the oxidant and reductant of water vapor (moisture) present in the gas, and provides at least a reference electrode and an indicator electrode, The present invention relates to an apparatus for measuring an oxidation-reduction potential of air, which is used for confirming an oxidation-reduction potential value in air using water vapor (moisture) present in a gaseous state as a sample solution in contact with an indicator electrode.

The oxidation-reduction potential measuring device in the present invention is different from conventional redox potential measurement devices in industrial water quality tests and saliva measurement in humans, unlike nitrogen, oxygen, argon, which are main components in the air. This is a device for measuring the oxidation-reduction potential of air with the main purpose of measuring the oxidation-reduction potential by comprehensively calculating the mixed potential of the composite material containing carbon dioxide and other trace elements.

であり、酸化還元電位Ｅは次のネルンストの式で示される。
Ｅ＝Ｅｏ＋ｎＦ−ＲＴ １ｎ ［Ｒｅｄ］ ［Ｏｘ］
ここに、Ｅｏ：標準酸化還元電位（［Ｏｘ］＝［Ｒｅｄ］）のときのＥで、系に固有の 値）
Ｒ：ガス定数Ｔ：絶対温度Ｆ：ファラデー定数
ｎ：反応に関与する電子数
［］：濃度（活量）An electrochemical reduction device that measures the potential and current generated at the interface between the indicator electrode and the solution using a conductive substance as an indicator electrode is, for example, an oxidation-reduction potential measurement device. The oxidation-reduction potential measuring device is equipped with an indicator electrode and a reference electrode of a conductive substance such as metal, and the solution is brought into contact with the indicator electrode to measure the concentration of the electrolyte in the solution and the ion concentration ratio of the oxidant / reductant. To do. That is, when an electrode such as platinum that is not affected by this solution is immersed in a solution containing an oxidant and a reductant, the electrode reaches an equilibrium with a potential with respect to the solution. This potential is called a redox potential.
If the oxidant is Ox and the reductant is Red, the redox reaction is

The oxidation-reduction potential E is expressed by the following Nernst equation.
E = Eo + nF-RT 1n [Red] [Ox]
Here, Eo: E when standard oxidation-reduction potential ([Ox] = [Red]), a value specific to the system)
R: Gas constant T: Absolute temperature F: Faraday constant n: Number of electrons involved in the reaction []: Concentration (activity)

However, conventional redox potential measuring devices mainly measure changes over time in industrial water quality tests and human saliva measurement, but comprehensive redox potential measurements of major components in the air can be performed using water vapor in the atmosphere. In a dry atmosphere where the test solution such as a water solution having a concentration is extremely small, the oxidation-reduction potential measurement requiring 1 / 1,000 mV has been regarded as a difficult region.

Dissolved oxygen also decreases in soil such as roads, rivers, lakes, and bottom mud in the city, and it becomes anaerobic. Phosphorus, iron, manganese, etc. are eluted from the bottom mud, and the water environment has been polluted. The water quality directly above the mud in these states is in a state where there is no oxygen dissolved in dissolved oxygen (DO) water and no more oxygen than bound oxygen (NOx-O) is bound. It is close to the oxygen state or there is no dissolved oxygen, and only oxygen in nitrous acid and nitric acid is present. In other words, it means not in an environment where humans can live.

It is important to be in an aerobic state where oxygen molecules that can be used by human beings are present, and not only soil and water quality, but also air is a mixture of oxidant and reductant activities based on natural providence. It is desirable to do. In light of this situation, the present inventors have focused on a redox measurement apparatus and method that can confirm the redox potential value of air in real time.

Conventionally, there are measurement of changes over time in industrial water quality tests and human saliva measurement, but the measurement target is test liquid such as water and biological saliva, and like water, air essential for life support is complex There is a fact that it has been polluted by various factors. For example (see Patent Document 1), an oxidation-reduction potential measuring apparatus and method are intended for biological fluids such as saliva components in the body of humans and the like. Moreover, in the wastewater treatment apparatus (refer patent document 2), the oxidation-reduction potentiometer which measures the oxidation-reduction potential in an oxidation tank is provided.

Since these patent documents do not include the consciousness of measuring whether the air absolutely necessary for life support is significant for oxidation or reduction, the technical significance is completely different from that of the present invention.
Japanese Patent No. 4154484 Patent No. 30672241

Today, air pollution has become a serious problem in various complex factors, and interest in fresh and healthy air has increased, and forests and forests and waters that are generated by the waterfalls are being taken in. An increasing number of people are visiting nature-rich places in search of waterfall water.

In the past, it has been well known that visual impairment called retinopathy of prematurity occurred due to the use of a large amount of oxygen in the population without wearing an eye mask in the incubator. As symbolized by this, there is a concern that the intake of air essential for life support, that is, oxygen deficiency and artificial oxygen inhalation rather than natural air, will trigger various functional disorders However, in recent years, air that is indispensable for living has become a human being with fresh air in forest environments rich in trees that are contaminated with dust, air pollution with chemical substances, dead bodies such as mites, and air due to chicken dung. And the environment is becoming difficult for animals to ingest.

Problems to be solved by the invention

Unlike conventional oxidation-reduction potential measurement devices, it tries to measure the oxidation-reduction potential by comprehensively calculating the mixed potential of complex substances including nitrogen, oxygen, argon, and other trace elements that are the main components in the air. Is. The reason for using the porous polymer and the porous material natural hemp, cotton, silk woven fabric, cotton fabric, woven fabric, sponge, etc., that the adsorbent that adsorbs air chemicals constitutes the inert holding part, is conductive In order to obtain a potential difference, a metal material having a property is not an electron transfer conduction between two electrodes, but a current conduction occurs directly and measurement cannot be performed.

Means for solving the problem

The present invention captures a chemical substance in a flowing fluid in the air and contacts a liquid drop portion of a narrow groove lead as a means for measuring an oxidation-reduction potential from platinum as an indicator electrode to a KCL solution conducted to a reference electrode as a reference electrode. Porous materials such as porous polymer or natural hemp, cotton, silk woven cloth, cotton cloth, woven cloth, sponge, etc. that constitute an inert holding part for the sample solution to be impregnated with purified water (pure water), After capturing the chemical substance in the flowing fluid and measuring the first redox potential by contacting the platinum electrode that is the indicator electrode, the atmosphere (ie, air) at the location to be measured was measured for the first time. It is characterized in that the second redox potential measurement is calculated after the air flow to the porous material portion for a predetermined time, and the redox potential in the air is finally measured by the first and second potential differences. Use porous polymer and porous material material impregnated with purified water (pure water) in advance and package one by one in a vacuum pack, or use purified polymer (pure water) for porous polymer and porous material material during measurement The method of impregnating into is not limited.

The main components in the air are volume ratio% nitrogen about 78.1%, oxygen about 20.968%, argon about 0.9%, carbon dioxide about 0.032%, oxygen is in the air If the volume ratio of the main components is 100%, it is about 21%. It is well known medically that if this oxygen concentration drops below 16% and oxygen inhalation stops for 3 minutes or more, life support becomes dangerous, and even if life can be managed somehow, serious sequelae remain. It is.

Metabolism in the living body is a biological activity that makes nutrients taken from food into a form that can be used in the body, but with sufficient oxygen, metabolism is performed more actively and smoothly. In other words, oxygen is indispensable for metabolism, but oxygen concentration in familiar places is about 21% in towns and forests, about 19.2% in ordinary cars, about 21% in well-ventilated places, 10 minutes after closing the window and turning on / off the air, it is about 20.3%, and if 3 people spend 1 hour in that room, the oxygen concentration decreases to about 18.0%. Therefore, it is easy to fall short of oxygen.

However, even if attention is paid only to the oxygen concentration, if the oxidation value is high as a result of a comprehensive calculation in a comprehensive index of oxidation-reduction potential including nitrogen, oxygen, argon, carbon dioxide and other trace elements which are main components in the air, Regardless of the presence or absence of oxygen concentration, there is a risk that the living body may complain of poor physical condition.

In the present invention, paying attention to the fact that the complex substance contained in the atmosphere brings about an oxidation-reduction reaction, these chemical substances such as sulfur compounds, nitrogen compounds, carbohydrates, halides, ozone, particulate substances, harmful substances, and further In recent years, the ozone in the troposphere has decreased but the ozone in the troposphere has increased in the troposphere (inside and outside 15 km from the surface to 14 km) and the stratosphere (in the 50 km region from 10 km to the surface) in atmospheric photochemistry. It is well known in the research announcement. It is well known that when the tropospheric ozone concentration becomes high, there is an effect on the human body. In recent years, it is said that the evolution of human scientific civilization has caused serious damage to the global environment, causing complex environmental pollution.

That is, according to the present invention, air pollution caused by radioactive substances in the surface area where humans live and dust, air pollution caused by chemicals, air pollution caused by chemical substances, dead bodies such as mites, and air caused by chicken dung, etc. In the middle, the balance of the volume ratio% of each component in the air collapses, and the importance of the oxidation-reduction reaction in the air near the ground was noticed.

The present invention has noticed that it utilizes a porous polymer and a property that is susceptible to oxidation of pure water having a low buffer capacity using cotton, silk woven fabric, cotton fabric, woven fabric, sponge and the like.

The use of a porous material includes a means for impregnating a porous material with purified water (pure water) at a target location where air is to be measured, and a porous material that contains pure water in advance and does not oxidize. The air in a place to be measured is stored in a vacuum pack, one by one or a plurality, and is measured.

Therefore, refreshing air generated near a lush forest bath or waterfall, seaside and plateau atmosphere by the apparatus and method for measuring the oxidation-reduction potential of air of the present invention. And in sick houses and office buildings that are contaminated with chemicals, crowded automobile driving locations that emit carbon dioxide (CO2), indoor and outdoor air such as chemical deodorizers, and air conditioning exhausted from urban buildings The purpose is to confirm the redox reaction of air, which is indispensable for life support, by measuring and comparing the air at the location, and to make use of it early.

The best mode for carrying out the apparatus and method for measuring oxidation-reduction potential in air of the present invention will be described below. 1 is a substrate 1 that requires a built-in CPU in the apparatus for assuming an oxidation-reduction potential of air according to the present invention. A silver-silver chloride electrode immersed in a KCL solution serving as a reference electrode opposite to the oxidation-reduction potential measuring apparatus is a porous polymer that adsorbs a chemical substance in a flowing fluid of air and natural hemp, cotton, This is an indicator electrode 5 made of an inert metal that comes into contact with a porous 3 that adsorbs a chemical substance by impregnating 3 containing silk woven fabric, cotton fabric, woven fabric, sponge, etc. with pure water 4.

However, the operation system of the measurement result in the air oxidation-reduction potential measuring apparatus of the present invention will be described with reference to FIG. Porous polymer, which is a porous material used as an adsorbent for adsorbing chemical substances in a flowing fluid of air, and 3 porous substances such as natural hemp, cotton, silk fabric, cotton fabric, woven fabric, sponge, etc. in the atmosphere In order to enhance the adsorption of chemical substances, a plurality of round hollow holes are provided, impregnated with purified water (pure water) 4 and measured for the first oxidation-reduction potential 6, and then the atmosphere (ie, air) at the location to be measured After the fan device 7 that blows and flows in the porous material portion 3 measured for the first time for a predetermined time (can be arbitrarily set), adsorbs the chemical substance in the flowing fluid of the air and stops the blowing operation, the second time After measuring the redox potential 8 The result 9 of the oxidation-reduction potential in the air at the measurement target location is finally displayed by the potential difference obtained by comprehensively calculating the first measurement and the second measurement. , Braille display (including print Braille) is displayed.

Furthermore, FIG. 3 of sectional drawing from the left side surface is demonstrated. For example, a potassium chloride solution 17 is accommodated in the liquid tank 16 for storing the internal liquid. A potentiometer 24 is connected through two lead wires 11 which are reference electrodes. A silver wire 15 leading to the lead wire 11 is disposed in a cylindrical portion 18 made of an inert material such as glass or carbon, and the silver powder 19 surrounding the silver wire 15 is prevented from flowing into the liquid bath of the internal liquid stored therein. Cotton 20 is packed into the narrow groove 14. The porous substance 3 that adsorbs chemical substances in the air is provided with a plurality of round hollow holes 22 for enhancing adsorption. The holding unit 3, which is a porous substance, is installed in the arrangement unit 21. When the holding portion 3 into which the platinum rod 12 as the indicator electrode 5 is inserted into the vertical cylindrical hole 23 into which the platinum rod as the porous material is inserted contacts the liquid junction portion 13, the sample solution becomes the indicator electrode 5 with respect to the reference electrode 2. Is measured by the potentiometer 24 through the lead wire 11.

Next, the plan view 4 will be described. A liquid tank 16 for storing the internal liquid and a lead wire 11 for the reference electrode 2, and a silver wire 15 is disposed through the lead wire 11. The holding portion 3 that is a porous material contacts the liquid junction 13 through the narrow groove 14, and the platinum rod 12 is inserted into the vertical cylindrical hole 23 provided in the porous material of the holding portion 3 that is a porous material. Thus, the potential of the indicator electrode 5 with respect to the reference electrode 2 is measured by the potentiometer 24 through the lead 11.
After the first measurement, the indicator device 5, the platinum rod 12, and the porous material portion 3 are left as they are, and the fan device 7 that blows and flows for a predetermined time (can be arbitrarily set) is operated, and the air fluid 25 is flown in the direction of the arrow. After the generated chemical substance in the atmosphere is adsorbed to the porous material 3 for a proper time and the air blowing operation is stopped, the second oxidation-reduction potential is measured, and then the first and second measurements are calculated based on the potential difference calculated comprehensively. Finally, the result 9 of the oxidation-reduction potential in the air at the measurement target location is displayed. The measurement result display method 10 is a liquid crystal display with numbers, or voice and Braille display (including printed Braille).

In addition, FIG. 5 of sectional drawing from the left side is demonstrated. The present invention is not limited to FIGS. 3 and 4 described above, and can be applied to an indicator electrode having the following configuration in solution measurement. A platinum rod 12 as an indicator electrode 5 is inserted into the placement portion 21 and the bottom portion of the placement portion 21 is bonded and sealed 26. It should be noted that the 26 locations where the platinum rod 12 serving as the indicating electrode 5 is inserted and bonded to the inner surface of the arrangement portion 21 to be sealed are not limited to the bottom portion. For example, a potassium chloride solution 17 is accommodated in the liquid tank 16 for storing the internal liquid. A potentiometer 24 is connected through two lead wires 11 which are reference electrodes. A silver wire 15 leading to the lead wire 11 is disposed in a cylindrical portion 18 made of an inert material such as glass or carbon, and the silver powder 19 surrounding the silver wire 15 is prevented from flowing into the liquid bath of the internal liquid stored therein. Cotton 20 is packed into the narrow groove 14. The porous substance 3 that adsorbs chemical substances in the air is provided with a plurality of round hollow holes 22 for enhancing adsorption. When the holding unit 3, which is a porous material, is installed in the placement unit 21, and the holding unit 3, which is a porous material, contacts the liquid junction 13, the potential of the indicator electrode 5 with respect to the reference electrode 2 passes through the lead wire 11 to the sample solution. Measured at 24.

The present invention makes it possible to confirm the before-after confirmation of the redox potential of air at the same measurement location as a change with time.

That is, in the case of a measured potential obtained by adding an mV potential further in the positive direction than the redox potential obtained in the first measurement, the potential difference is used as the numerical value of the oxidation degree or the redox potential obtained in the first measurement. Further, in the case of a measured potential in which mV potential is further added in the minus direction, the potential difference can be measured and displayed as a numerical value of the reduction degree.

In the chemical field, adsorbents for accumulating chemical substances are well known, and each correspond to a substance that adsorbs (and thus accumulates the chemical substances) to accumulate chemical substances.

Porous polymer, which is a porous material used as an adsorbent for adsorbing chemical substances in air fluids, and solutions to be impregnated in natural hemp, cotton, silk fabric, cotton fabric, woven fabric, and sponge, are purified water (pure water). Water) is essential. This is because a solution other than purified water (pure water) impedes the reproducibility of the redox potential due to its own redox reaction due to various mixtures. Measurement target location by blowing and flowing into the porous material for a predetermined time from the first measurement by impregnating the porous material used in the present invention with a solution having extremely low buffer capacity such as purified water (pure water) It is possible to quickly absorb and adsorb the effects of oxidation or reduction of chemical substances in the atmosphere. Therefore, it was carried out paying attention to the fact that the result of the oxidation-reduction potential in the air at the measurement target location is finally obtained by the potential difference obtained by comprehensively calculating the first measurement and the second measurement.

In order to confirm the significance, using the apparatus for measuring the oxidation-reduction potential of air according to the present invention, each measurement location and condition, the first measurement, the first measurement, the predetermined time from the first measurement, blown to the porous material Table [1] shows the second measurement result in which the oxidation-reduction reaction of the chemical substance adsorbed on the porous substance after flowing was stable and the numerical value was not changed.

As shown in Table 1, the measurement results of the present invention are shown in Table 1 by the time-dependent change in the oxidation-reduction potential of air at the measurement site and the impregnation using pure water on the cotton swab that is the porous material. This proves that the oxidation-reduction potential can be measured even in a dry air measurement place by determining the time during which the oxidation-reduction reaction of the chemical substance is stabilized.

Purified water (pure water) has a slight difference in redox potential depending on the manufacturer and date of manufacture, but the first swab or solution containing purified water (pure water) opened at that time In comparison with the measurement results, the degree of oxidation and reduction can be measured by the second measurement that is carried out subsequently, and furthermore, the oxidation-reduction reaction after 20 minutes from 5 minutes to 20 minutes has passed and the stable time zone has been identified. As a result of the measurement in the state, it is possible to exchange electron conduction through the purified water (pure water) solution, and to measure the oxidation-reduction potential of the air at the measurement location.

As shown in Table 1, the potential difference of redox potential is small in a sealed room where there is no person in the measurement of (1), but people are congested in the sealed room in the measurement of (2) and humans breathe. It is confirmed that the redox potential with the reduced oxygen concentration in the room is acting in the positive oxidation direction, and the oxidation in the room with the outside oxygen taken into the room by ventilation in the measurement of (3) It can be seen that the reduction potential acts in the negative reduction direction.

On the other hand, the redox potential in the measurements (4), (5) and (6) acts in the positive oxidation direction, and the redox potentials in the measurement locations (7), (8) and (9) are in the negative reduction direction. It has been confirmed by the apparatus for measuring the oxidation-reduction potential of the air according to the present invention that it acts on the air.

Effect of the invention

In the present invention, the reference electrode serving as the reference electrode is immersed in the KCL solution. Alkaline electrodes made by mixing a known KCL solution in a gel or mercury paste. There are hydrogen gas electrodes etc., but they are not used in order to avoid problems in terms of safety when used by non-chemical analysts.

We do not use ultrapure water with extremely high purity used in the industrial field. Because ultra-pure water has a high ability to oxidize and dissolve all substances in trace amounts, so that the storage container should not be dissolved when the porous substance is impregnated with ultra-pure water and sealed and used. Before capturing the redox reaction in the atmosphere (that is, air), the porous material used in the measurement apparatus of the present invention or the material on which the porous material is placed is oxidized in a small amount (or there is a risk of it). The reproducibility of measured values must not be reduced.

The method for measuring (ORP) in redox electricity in the air of the present invention is the first time for a porous material impregnated with purified water (pure water) by a fan equipped with air flow for a predetermined time and a platinum rod as an indicator electrode for the first time. After measurement, the air in the place to be measured (that is, air) is blown and flown for a predetermined time while being set in the arrangement portion, so that the redox reaction of the chemical substance adsorbed on the porous material is stably countered. Porous material within 20 minutes from the first measurement to the second measurement within 5 minutes to 20 minutes from the first measurement to the time when the negative and positive electronic conduction information to both the reference electrode and the indicator electrode page is in equilibrium. Ascertain that the oxidation-reduction reaction of the chemical substance adsorbed on the surface becomes stable and does not move so that the second measurement start time can be automatically and arbitrarily set from the first measurement, and the arbitrary setting is canceled. In this case, it is possible to automatically measure the oxidation-reduction potential in the air based on the difference between the first and second potentials in the air in the dry zone by making continuous measurement that can automatically start the second measurement. I did it.

In the air oxidation-reduction potential measuring apparatus and method of use of the present invention, not only the reaction potential due to a single hydrogen ion is measured, as in the PH meter, but the oxidation-reduction potential (ORP) The target is the mixed potential of the composite material expressed as a weighted average of the reaction energies of all the ions and molecules in it. Therefore, the activity ratio of oxidant and reductant contained in water vapor (moisture) present in the air and nitrogen, oxygen, argon, carbon dioxide and other trace elements that are the main components in the air is measured. This is an apparatus for measuring redox potential in air and a method of using the same, mainly for measuring the redox potential by comprehensively calculating the mixed potential of these composite substances.

In Japan, humans need to help each other and care for each other after the Great East Japan Earthquake. In the present invention, the measurement result of the oxidation-reduction potential is displayed not only numerically on the liquid crystal screen but also the voice or Braille display (including printed Braille), even if the visual and auditory inconvenience is inconvenient. To be able to.

In the use of the apparatus for measuring the oxidation-reduction potential in air of the present invention, indoors and the like are circulated in an environment in which the air flow is isolated, so that they are housed, offices, factories and vehicles, trains, cars, airplanes (in spacecraft) ), Ships (submersibles including those for sightseeing), aquariums and other isolated vehicles and underground air, confirming the redox potential value in the air will greatly contribute to maintaining the physical condition. Think.

The flowchart of the oxidation-reduction potential measuring apparatus of this invention. The flowchart of the oxidation-reduction potential measurement which catches the chemical substance in the flowing fluid in air with the porous polymer and porous substance which comprise this invention. Sectional drawing of the left side surface in the oxidation-reduction potential measuring apparatus of this invention. The top view in the oxidation-reduction potential measuring apparatus of this invention. Sectional drawing of the left side surface which bonded and sealed the bottom part in the oxidation-reduction potential measuring apparatus of this invention.

DESCRIPTION OF SYMBOLS 1 CPU substrate 2 Silver-silver chloride electrode immersed in KCL solution of reference electrode 3 Porous material adsorbing material (porous polymer and porous material natural hemp, cotton, silk woven fabric, cotton cloth, woven fabric, sponge, etc. Adsorption material including
4 Impregnated porous material with purified water (pure water) 5 Indicator electrode 6 First measurement 7 Fan device that blows and flows air to porous material adsorbing material 8 Second measurement 9 First and second measurements comprehensively Measured potential difference 10 Liquid crystal display with numbers or voice, print display with Braille 11 Lead wire 12 Platinum rod 13 Liquid junction 14 KCL solution conducting narrow groove 15 Silver wire 16 of reference electrode Liquid tank 17 for storing internal liquid Chloride Potassium 18 Cylindrical portion 19 made of an inert material such as glass or carbon Silver powder 20 wrapping silver wire 20 Cotton 21 Porous material arrangement portion 22 Round hollow hole 23 for enhancing adsorption Vertical cylindrical hole for inserting platinum rod into porous material 24 Potentiometer 25 Flow of blast flow 26 The bottom of the indicator electrode insertion arrangement part is bonded and sealed

Claims (12)

The active ratio of the oxidant and reductant of water vapor (moisture) present in the atmosphere (ie, air) is measured, and at least a reference electrode and an indicator electrode are provided, and the sample solution exists in the state of a gas in contact with the indicator electrode. Measures the redox potential of air by comprehensively calculating the redox potential of these complex substances contained in water vapor (moisture) and the main components of air, such as nitrogen, oxygen, argon, carbon dioxide and other trace elements. Device to do. The porous polymer used for measuring the oxidation-reduction potential of the atmosphere (ie, air) and cotton, silk woven fabric, cotton fabric, woven fabric, sponge, etc. are stored in a vacuum pack so as not to oxidize. A porous material used for measuring the oxidation-reduction potential of air, which is used by opening when measuring. A porous polymer that forms an inactive holding portion such as a round bar, a sphere, or a flat plate with respect to a sample solution that contacts a liquid contact portion of a narrow groove conducting wire that leads to a KCL solution that is conducted to a reference electrode that is a reference electrode Porous materials such as cotton, silk fabric, cotton fabric, woven fabric, and sponge contain pure water at the time of measurement, and the oxidation-reduction potential in the atmosphere is measured by contacting the indicator electrode with the platinum electrode. The apparatus for measuring an oxidation-reduction potential of air according to claim 1 or 2. After measuring the first oxidation-reduction potential, the cotton swab impregnated with pure water and the platinum electrode are left as they are, and the air in the place to be measured is blown and flowed to the porous material measured for the first time for 2 hours. 4. The oxidation-reduction potential at a measurement target location is measured by a potential difference obtained by comprehensively calculating the first measurement and the second measurement after measuring the first oxidation-reduction potential. The measuring method using the apparatus which measures the oxidation-reduction potential of the described air. After measuring the first oxidation-reduction potential, the cotton swab impregnated with pure water and the platinum electrode are left as they are, and the air in the place to be measured is blown and flowed to the porous material measured for the first time for 2 hours. In the case of a measured potential in which an mV potential is further added in the positive direction from the redox potential obtained in the first measurement after the first redox potential is measured, the potential difference is used as a numerical value of the degree of oxidation or the first time In the case of a measured potential in which an mV potential is further added in the negative direction from the oxidation-reduction potential obtained in the measurement of (1), the potential difference is displayed as a numerical value of the reduction degree, and is displayed as a measurement. 5. A measurement method using an apparatus for measuring the oxidation-reduction potential of air according to 3 or 4. After the first measurement of the porous material impregnated with purified water (pure water) and the platinum rod that is the indicator electrode, the air in the place to be measured (ie, air) is blown for a predetermined time while it is set in the placement section. By flowing, the information on the negative and positive electron conduction to the bipolar reference electrode and the indicator electrode that stably counters the oxidation-reduction reaction of the chemical substance adsorbed on the porous substance is in a balanced state. From the first measurement to the second measurement, it is determined that the oxidation-reduction reaction of the chemical substance adsorbed on the porous material is not stably moved within 5 minutes to 20 minutes. The second measurement start time can be automatically and arbitrarily set, and when the arbitrary setting is canceled, the second measurement is automatically started from the first measurement. Or 5 Measuring method using an apparatus for measuring the redox potential of air according. Humidity in indoor and outdoor air, that is, in homes, offices, factories and vehicles, trains, cars, airplanes, ships (including submersible boats for sightseeing), aquariums, and other vehicles and isolated underground spaces A sample in contact with the indicator electrode by capturing the oxidation-reduction reaction of the chemical substance adsorbed on the porous material contained in the air, and by providing the reference electrode and indicator electrode by capturing the mass ratio of the oxidant and the reductant present in the air It is used for confirming the oxidation-reduction potential value of air by a very small amount of water vapor (moisture) present in a gaseous state as a solution. A measurement method using a device that measures the oxidation-reduction potential of air. The result of the oxidation-reduction potential in air is a number, and the oxidation-reduction region is displayed on a liquid crystal display, or voice, Braille display, or print Braille. Method using a device that measures the redox potential of air. A fan for blowing and flowing the atmosphere (that is, air) of a place to be measured for a predetermined time is provided at a porous material portion. 9. A measuring method using an apparatus for measuring the oxidation-reduction potential of air according to 8. The material that adsorbs the chemical substance in the fluid flowing in the air at the measurement location by the porous polymer that constitutes the inert holding part and the porous material such as cotton, silk woven cloth, cotton cloth, woven cloth, sponge, etc. is pure in advance. It is stored in a vacuum pack soaked in water, and is opened and used when measuring air in a place to be measured. A measurement method using a device that measures the oxidation-reduction potential of air. Porous polymer and cotton, silk woven fabric, cotton fabric, woven fabric, sponge, etc. used to measure the oxidation-reduction potential of the atmosphere (ie, air) contain pure water in advance and vacuum one by one or multiple so as not to oxidize 10. The air oxidation-reduction potential according to claim 2, 3 or 9, wherein the porous material is sealed and stored in a pack, and is opened and used when measuring air at a place to be measured. A measurement method using a device to perform. The porous polymer used for measuring the redox potential of the atmosphere (ie, air) and the shape of cotton, silk woven fabric, cotton fabric, woven fabric, sponge, etc. are not sticking to cylinders, cones, squares, polygons, rods, flats, etc. The measurement method using the apparatus for measuring an oxidation-reduction potential of air according to claim 2, 3, 10 or 1, wherein the measurement method is an ionic substance.

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