43 results about "Radical ion" patented technology

The invention discloses a solar cell and a preparation method thereof, electric equipment and power generation equipment, the solar cell comprises a passivation material, and the passivation material comprises cations and anions; the cations comprise ammonium ions, and the anions comprise acid radical ions; the ammonium ions comprise substituted or unsubstituted alkyl ammonium ions, and the acid radical ions comprise any one of organic acid radical ions and inorganic acid radical ions. The positive ions in the passivation material can enter perovskite crystal lattices to form two-dimensional perovskite to play a role in protecting a light absorption layer, and the electron cloud density on the negative ions is relatively high and can act with excessive lead iodide in the perovskite to stabilize a lead-iodine octahedral framework, so that the passivation material can passivate the defects of a perovskite layer, and the light absorption performance of the light absorption layer is improved. And the photoelectric conversion efficiency and the stability of the solar cell device are improved.

The invention discloses novel dual-emission dissimilar metal MOFs, the chemical formula of which is [Eu2 (na) 6 (CH3OH) 2 (Cu4I4)], and na-is a nicotinic acid radical ion. The MOFs have two secondary structural units: a cubic alkane [Cu4I4] cluster and a 1D inorganic-organic chain [Eu (na) 3] n, each [Cu4I4] cluster serves as a four-connection node, and the 1D [Eu (na) 3] n chain is connected through a nitrogen atom of a na-ligand, so that a three-dimensional skeleton structure is expanded. Tests show that at room temperature, when the compound is excited by 338 nm ultraviolet light, the compound shows two emission centers, a wide emission peak at 557 nm belongs to cluster center triplet emission of a [Cu4I4] cluster, and emission of sharp peaks at 591, 611 and 701 nm corresponds to characteristic emission of Eu < 3 + >. Particularly, the intensity ratio of two fluorescence emission peaks of the compound at 567 nm and 610 nm in the temperature range of 125-300 K and the temperature have a good linear relation, the compound is a sensitive ratio type fluorescence temperature sensing material, and a new thought is provided for application of the ratio type fluorescence temperature sensing material.

The invention discloses a trimetallic spinel oxide / high-valence metal oxide composite OER electrocatalyst and a preparation method thereof. The method comprises the following steps: firstly, synthesizing trimetal LDH nanosheets with rich defects in one step through a colloid mill, then inserting high-valence transition metal oxyacid radical ions into LDH layers by utilizing an ion exchange method, and finally, enabling LDH to be topologically converted into a spinel structure by adopting a low-temperature thermal oxidation method and generating more defects at the same time, so as to prepare the composite oxide electrocatalyst. Based on the adjustable property of interlayer anions of layered double hydroxides, a nucleation crystallization isolation method, an ion exchange method and a thermal oxidation technology are combined, the composite oxide electrocatalyst with an ultrathin nanosheet structure and rich surface defects is prepared, and the composite oxide electrocatalyst has the OER catalytic performance far higher than that of precious metal.

The invention discloses imprinted resin, a preparation method thereof and application of the imprinted resin in platinum recovery. The preparation method of the imprinted resin comprises the following steps: S1, carrying out nucleophilic substitution reaction on chloromethyl polystyrene resin and N-(2-mercaptoethyl) acrylamide in a solvent, and collecting the resin after the reaction is finished; s2, adding a chloroplatinic acid solution into the resin obtained in the step S1, and carrying out a coordination reaction; s3, adding a cross-linking agent and an initiator into the system obtained in the step S2, carrying out polymerization reaction, and collecting resin after the reaction is finished; and S4, adding an eluent into the resin obtained in the step S3, and desorbing chloroplatinic acid radical ions to obtain the imprinted resin. The imprinted resin provided by the invention has high selectivity, high adsorption capacity and good regeneration performance on chloroplatinic acid radical ions, and is suitable for efficient recovery and resource utilization of platinum.

The invention discloses a polyester blended fabric with anti-pilling performance and a preparation method of the polyester blended fabric, and belongs to the technical field of after-finishing of polyester blended fabrics. The problem that the anti-pilling performance of the polyester blended fabric is poor is solved. The polyester blended fabric is soaked in a polydopamine solution, so that charge distribution, roughness and surface area of the surface of the polyester fiber are increased, then fiber surface modification treatment is carried out in a solution containing sodium bicarbonate, urea and sodium chloride, molecular chains of the polyester fiber are swelled by utilizing the urea and the sodium chloride, and the polyester fiber is formed. The surface area of the polyester fiber is further increased, and the orientation degree is reduced, so that bicarbonate radical ions fully permeate into the polyester fiber, the bicarbonate radical ions react with the polyester fiber more easily, the glass transition temperature of the polyester fiber is reduced, the polyester fiber is partially hydrolyzed, and finally the strength of the polyester fiber is reduced, and the surface becomes rough; the anti-pilling performance of the polyester blended fabric is improved under the effects that the fiber strength is reduced and the friction coefficient is increased.

The invention relates to the field of natural medicinal chemistry, in particular to application of mirabilis himalaica to preparation of a product with whitening and anti-oxidation effects, and innovatively adopts mirabilis himalaica to research the whitening and anti-oxidation effects. The mirabilis himalaica-derived extracellular vesicle-like nanoparticles are found to be capable of reducing the content of melanin in melanoma cells at the cellular level and inhibiting the activity of tyrosinase. In addition, the mirabilis himalaica source extracellular vesicle-like nanoparticles can also scavenge free radical ions, inhibit the generation of active oxygen in cells and promote the improvement of cell viability. The mirabilis himalaica-derived extracellular vesicle-like nanoparticles disclosed by the invention can be sufficiently internalized and absorbed by melanoma cells, the melanin content in the melanoma cells is remarkably reduced, melanin pigmentation on the epidermis of a mouse is remarkably reduced, and the mirabilis himalaica-derived extracellular vesicle-like nanoparticles also have excellent oxidation resistance. The method has potential for preparing products with whitening and antioxidant effects.

The invention belongs to the technical field of deep-time atmosphere carbon dioxide isotope composition estimation, and particularly relates to a high-resolution deep-time atmosphere carbon dioxide isotope composition estimation method and system, and the method comprises the steps: S100, reconstructing the global surface average temperature based on the atmosphere carbon dioxide concentration pCO2; s200, calculating the relative content of carbonate ions and bicarbonate radical ions in the marine carbonate system; s300, determining a fractionation coefficient; s400, determining a difference value V of carbon isotopes of the carbonatite and surrounding seawater in the carbonatite deposition process on the basis of the carbon isotope difference of the carpopods and the carbonatite; according to the method, carbonate rocks which generally exist in geological history and are continuously deposited on time are selected as a tool for atmospheric carbon dioxide isotope reconstruction, and the atmospheric carbon dioxide isotope is reconstructed through quantitative evaluation of the geological history ocean surface layer temperature, the ocean carbonate rock salt content and the fractionation effect during formation of the carbonate rocks. And the atmospheric carbon dioxide isotope composition in the deep-time geological historical evolution process can be accurately calculated.

The invention provides a positive active material, a preparation method, a positive plate, a battery, a battery pack and electric equipment. The positive electrode active material comprises an inner core and a coating layer coating at least part of the surface of the inner core, in the direction away from the inner core, the coating layer comprises a first coating layer and a second coating layer which are stacked, the first coating layer comprises an active lithium salt, the second coating layer comprises a lithium-containing compound, and the porosity of the second coating layer is not higher than 5%; anions of the active lithium salt comprise inorganic acid radical ions and / or organic acid radical ions, and pKa of acid formed by the inorganic acid radical ions is not higher than 6. The positive electrode active material is composed of a special coating layer, so that the positive electrode active material has a higher first effect and a lower expansion rate, and the cycle performance, the safety performance and the energy density of the battery can be improved.

The invention belongs to the technical field of organic photochemical synthesis and catalysis, and discloses application of a spin catalyst based on a macrocyclic gadolinium complex in photooxidation reduction reaction. According to the spin catalyst, the high-spin ground state of gadolinium ions is utilized, intersystem crossing of a photoreaction intermediate singlet-state free radical ion pair to a triplet-state free radical ion pair is promoted through the paramagnetic effect, and the reverse electron transfer process is effectively inhibited. Particularly, in a water-containing system, the Gd-DOTP complex induces solvent water molecules to form an ordered hydrogen bond network through a phosphonic acid group on a ligand, a proton-mediated spin transmission channel is constructed, and efficient catalysis can be achieved under the millimole-level low concentration (0.53.0 mM). The system obviously inhibits BET, improves the organic photooxidation reduction reaction efficiency, is suitable for reactions such as halogenated aromatic hydrocarbon dehalogenation and benzene oxidation hydroxylation, and has the advantages of small catalyst dosage, good stability, wide application range and the like.

The application discloses an iron electrode coupled anaerobic granular sludge membrane bioreactor, which comprises a reactor body, a granular sludge bed and a clarified liquid are sequentially arranged in the reactor body from bottom to top, an iron negative electrode and a metal mesh positive electrode are oppositely arranged in the clarified liquid, and a water outlet pipe is communicated with the side wall of the reactor body corresponding to the clarified liquid. 2+ , Fe 2+ has a strong flocculation effect, reduces the content of suspended sludge in the clarified liquid, the released divalent iron can connect various anions such as hydroxyl, acid radical, sulfate radical and phosphate radical ion to form large flocculation sludge, reduces soluble protein and polysaccharide and is converted into solidified extracellular polymer, reduces pore size blockage and reduces the formation of high-strength attached sludge cake layer, and therefore irreversible membrane pollution is reduced.

The invention relates to the field of water treatment adsorption materials, in particular to a preparation method of a modified coal gangue ceramsite adsorption material for treating a phosphorus-containing water body, and aims to solve the problems that binding sites of pores and anions in existing coal gangue ceramsite are limited, a saturation state is easy to achieve, the adsorption capacity is limited, and the existing coal gangue ceramsite is easy to saturate and large in usage amount. According to the preparation method, coal gangue ceramsite is used as a main raw material for comprehensive utilization to prepare the modified coal gangue ceramsite adsorption material, comprehensive utilization of coal gangue solid waste is achieved, impurities on the coal gangue ceramsite can be effectively removed after acid activation, pore channels are cleaned and expanded, the adsorption performance of the coal gangue ceramsite is improved, and the coal gangue ceramsite adsorption material is suitable for industrial production. After the coal gangue ceramsite is modified by using the modification liquid, the loaded iron element, lanthanum element and phosphate radical ions are easily coordinated and combined, so that inorganic pollutants such as phosphate in a water body can be efficiently adsorbed and removed, adsorption sites are provided, the adsorption effect is promoted, and the adsorption performance is improved.

The present application discloses a solar cell and a preparation method therefor, an electric device, and a power generation device. The solar cell comprises a passivation material, and the passivation material comprises cations and anions; the cations comprise ammonium ions, and the anions comprise acid radical ions; and the ammonium ions comprise substituted or unsubstituted hydrocarbyl ammonium ions, and the acid radical ions comprise any one of organic acid radical ions and inorganic acid radical ions. The cations in the passivation material can enter a perovskite lattice to form two-dimensional perovskite, so that the effect of protecting a light absorption layer is achieved; the electron clouds on the anions have high density, and can act with excessive lead iodide in perovskite, so that the lead iodide octahedral framework can be stabilized; and in this way, the passivation material can passivate the defects of a perovskite layer, thereby improving the photoelectric conversion efficiency and stability of the solar cell device.

The invention relates to an embolism microsphere and a preparation method thereof, and belongs to the field of medical interventional therapy. Polyvinyl alcohol is adopted as a base material and is cross-linked with a cross-linking agent to generate microspheres, and meanwhile, a polymer material containing polyacid radical ions is introduced. The modified microspheres prepared by the method have the same regular spherical shape as that of unmodified polyvinyl alcohol, and are controllable in size and good in suspension property and deformation elasticity. Meanwhile, due to the introduction of functional groups with negative charges, the microspheres can be combined with micromolecular antitumor drugs with positive charges, so that the microspheres have very good drug loading performance. The preparation process is a pure chemical synthesis process, the raw materials and the preparation process are free of virus pollution, various requirements of international embolism agents are met, various imported and domestic expensive embolism agent products can be replaced, and the method can be widely applied to various operations in the field of interventional therapy.

The invention relates to the technical field of treatment of clostridium mycoprotein, in particular to a method and system for removing unpleasant odor of clostridium mycoprotein. The clostridium mycoprotein is derived from clostridium mash, the clostridium mash comprises ash and organic acid capable of generating unpleasant odor, and the method comprises the following steps: carrying out neutralization reaction on an alkaline solution and the clostridium mash to remove the organic acid so as to obtain a weakly alkaline clostridium reaction solution containing organic acid radical ions; carrying out membrane separation on the clostridium reaction liquid to remove the organic acid radical ions and the ash content so as to obtain a clostridium mycoprotein mixed liquid; and drying the clostridium mycoprotein mixed solution to obtain the clostridium mycoprotein. According to the method, through the steps of neutralization reaction, pH value regulation and control, membrane separation and the like, the bad smell of the clostridium mycoprotein is effectively removed, meanwhile, the normal function of the mycoprotein is guaranteed, and powerful support is provided for further application of the clostridium mycoprotein.

The invention relates to a small-signal free radical infrared spectrum detection method. The method comprises the following steps: 1, acting photolysis laser on a precursor molecular beam source to obtain a free radical and precursor mixed beam source; 2, infrared laser and free electron laser act on the free radical and precursor mixed beam source to obtain a semi-excitation mixed ion beam source; 3, after the semi-excitation mixed ion beam source passes through an accelerator, a flight time difference T is formed between precursor ions and free ions in the semi-excitation mixed ion beam source; 4, the ion beam source enters a deflection electric field, a first electrode of the deflection electric field applies a voltage pulse signal set according to the flight time difference T, precursor ions deflect, move and are discharged when the voltage pulse signal exists, and the ion beam source enters a detector after passing through a reflector when the voltage pulse signal does not exist. Deflection, movement and discharge of precursor ions are realized in the deflection electric field, free radical ion signals can be increased, and measurement of small-signal free radical infrared spectrum is realized.

A kind of stable method for ion chromatography direct detection of sulfurous acid radical in water belongs to the field of environmental science and technology.The method is as follows: a certain mass of KOH and citrate is placed in water to prepare a mixed concentrated solution, wherein the molar concentration ratio of KOH to citrate is in the range of 1:1 to 4; a certain volume of water sample containing sulfurous acid radical is taken and added to the above concentrated solution and mixed quickly; the mixing ratio is determined according to the concentration of sulfurous acid radical in the water sample, and the mixed solution is used for ion chromatography determination.The present application establishes a sulfurous acid radical ion chromatography determination method using safe and green citrate as stabilizer, citrate is used as stabilizer in alkaline solution to stabilize sulfurous acid radical in sample, and ion chromatography is used to directly determine sulfurous acid radical ions in water, solving the problem of instability of sulfurous acid radical in water during the whole process of sampling, preservation, transportation and determination.

A negatively charged embolization microsphere and a preparation method therefor, wherein polyvinyl alcohol, which is used as a base material, cross-links with a cross-linking agent to form microspheres while a polymer material containing polyacid radical ions is introduced. The prepared modified microsphere has the same regular spherical shape, controllable size, and good suspensibility and deformation elasticity as those of polyvinyl alcohol before modification. In addition, since a negatively charged functional group is introduced, the microsphere can bind to a positively charged small molecule anti-tumor drug, which makes the microspheres have a good drug loading performance. The preparation method is a pure chemical synthesis process, the raw materials and preparation process of the microsphere are free from viral contamination, and the microsphere meets various international requirements for embolization microsphere agents, can replace various expensive embolization microsphere agent products, and can be widely used in various operations in the field of interventional therapy.

The invention provides application of a compound for regulating the pH value in ferroptosis related preparations. Experimental results show that in the ferroptosis process, the extracellular pH value is in positive correlation with the ferroptosis death rate, ferroptosis can be effectively delayed by reducing the extracellular pH value, and ferroptosis can be effectively promoted by improving the extracellular pH value. The regulation and control of the pH value can be realized by adding / reducing the pH value regulating compounds such as hydrochloric acid, bicarbonate radical ions, NaH2PO4, sodium hydroxide and the like. In addition, the low pH value can delay ferroptosis of the cells and has high lipid peroxidation, which indicates that the low pH value affects the ferroptosis execution stage after the lipid peroxidation is increased. Therefore, the compound for regulating the pH value has basic and clinical application prospects in the application of preventing and treating ferroptosis and developing ferroptosis drugs, and new small molecules, methods and directions are provided for research and treatment of ferroptosis-related diseases.

The invention belongs to the technical field of rare earth porous materials, and particularly relates to a three-dimensional rare earth sulfate supramolecular porous material as well as a preparation method and application thereof. The preparation method of the three-dimensional rare earth sulfate supramolecular porous material comprises the following steps: mixing a rare earth ion solution, amide organic amine and sulfuric acid or sulfate or dimethyl sulfoxide to obtain a precursor solution; and transferring the precursor solution into a reaction kettle for heat treatment to obtain the three-dimensional rare earth sulfate supramolecular porous material with a chemical composition general formula of (NH4) Ln (SO4) 2. According to the rare earth sulfate porous material, rare earth ions and sulfate radicals are coordinated to form a three-dimensional anion framework, amine ions are located in pore channels and play roles in balancing charges and supporting the framework, and the prepared material has high specific surface area and adjustable pore diameter and is suitable for the fields of gas adsorption, hydrogen energy storage, catalysis and the like.

The invention discloses preparation and application of a positive electricity driving type composite nano-enzyme label. According to the composite nano-enzyme microsphere, a PDA (polydopamine) particle is taken as a core, a PEI interlayer is constructed on the surface of the PDA particle by utilizing the self-assembly effect of a positive polymer PEI, chloroplatinic acid radical ions are adsorbed, and then the composite nano-enzyme particle is synthesized in situ under the action of a reducing agent. The preparation method comprises the following steps: firstly, carrying out surface modification on PDA nano-particles by using PEI so that the PDA nano-particles can adsorb chloroplatinate ions; then, a reducing agent sodium borohydride (NaBH4) is added, platinum (Pt) nano-particles are generated on the surfaces of the PDA nano-particles through in-situ reduction, and therefore the composite nano-enzyme microspheres PDA (at) Pt with the core-shell structure are constructed. The invention further discloses application of the colorimetric-catalytic dual-signal label prepared from the composite nano-enzyme microspheres in immunochromatography detection. The novel label is good in dispersity, adjustable in particle size, high in colorimetric and catalytic performance and easy to prepare in batches.

The invention discloses chlorine-based solid electrolyte containing oxyacid radical ions as well as a preparation method and application of the chlorine-based solid electrolyte. The chemical formula of the oxyacid radical ion chlorine-based solid electrolyte is xLiCl. YA. ZB (A is one or more of ZrCl4, TaCl5, HfCl4, NbCl4, FeCl3 and AlCl3; b is one or more of Li2MoO4, Li2WO4, Li2B4O7, Li2SO4, LiNO3 and Li2CO3, and the Li2MoO4, the Li2WO4, the Li2B4O7, the Li2SO4, the LiNO3 0.1 < = x < = 1.9; 0.8 < = y < = 1.2; 0.05 lt; 0.05 lt; and z < = 0.6). The oxyacid radical ions are introduced, so that the oxyacid radical ion chloride solid electrolyte with high ionic conductivity is prepared; in addition, by introducing proper oxyacid radical ions, the electrochemical stability window of the chloride solid electrolyte can be improved, and the chloride solid electrolyte can stably operate at the high voltage of 4.5 V when being matched with a high-voltage positive electrode.

The invention discloses a method and a device for removing vanadium from crude titanium tetrachloride, and belongs to the technical field of impurity removal and refining of inorganic matters. The method comprises the following steps: (1) preheating crude titanium tetrachloride liquid, then introducing hydrogen into the crude titanium tetrachloride liquid, and irradiating the crude titanium tetrachloride liquid by adopting ultraviolet light with the wavelength not greater than 274 nm, so that the crude titanium tetrachloride reacts with the hydrogen; and (2) evaporating the reaction product to obtain refined titanium tetrachloride and vanadium-rich slag. According to the method, hydrogen is activated through ultraviolet light to generate H free radical ions, the problem that hydrogen cannot directly react with titanium tetrachloride and vanadium oxytrichloride is successfully solved, the efficient clean reducing agent hydrogen is used for removing vanadium from titanium tetrachloride, the safety and environmental friendliness of the vanadium removal process are effectively improved, the vanadium removal effect is improved, and the method is suitable for industrial production. The titanium tetrachloride with higher purity and the vanadium-rich slag with higher vanadium grade are obtained, an excellent foundation is laid for subsequent use of the titanium tetrachloride and the vanadium-rich slag, and a new thought is provided for vanadium removal of the titanium tetrachloride.

The present invention provides a cleaning water supply device comprising: an ionized water generation module for generating and supplying cleaning water containing radical ions by electrolyzing general water; and a cleaning water supply module for generating cleaning water containing the ionized water introduced from the ionized water generation module and supplying the cleansing water to the outside. The ionized water generation module includes: an electrolysis tank into which general water or cleaning water recovered from the cleaning water supply module is introduced, and which provides an ionized water generation space in which the ionized water is generated; a decomposition electrode positioned inside the electrolysis tank to perform electrolysis; a water inlet pipe for supplying general water to the electrolysis tank; and a cleaning water recovery pipe for recovering cleaning water from the cleaning water supply module and supplying the cleaning water to the electrolysis tank.

The present application relates to the technical field of batteries, and discloses an electrolyte and a battery. The electrolyte comprises a lithium salt, a solvent, and an additive, the structural formula of the additive being as shown in formula (I), wherein A- is selected from inorganic acid radical ions. The electrolyte provided by the present application is beneficial to improving the film forming performance of an SEI film, and improving the film forming quality of the SEI film.

The invention provides an on-line detection method and detection system for free radical concentration, and the detection method comprises the following steps: a control module executes a first detection mode to obtain a background baseline signal; the control module executes a second detection mode to obtain a total signal comprising the background baseline signal and the free radical concentration signal; wherein the second detection mode is as follows: a power supply of the plasma source and the ionizer are turned on, a built-in ion source of the gas analysis unit is turned off, and the ion capture and pulse extraction functions of the introducer are activated, so that free radical ions generated by ionization of the ionizer are captured in the introducer and then are introduced into the gas analysis unit in a pulse manner for detection; and the control module subtracts the total signal from the background baseline signal to obtain the free radical concentration signal. According to the detection method and the detection system provided by the invention, the dynamic change of the free radical concentration in the technological process can be monitored in real time, and the detection accuracy is improved.

The present invention relates to the preparation and application of dibenzylideneacetone compounds represented by Formula I. By modifying these compounds, a class of compounds capable of selectively killing Staphylococcus aureus at low concentrations was synthesized. Upon illumination, the compounds further interact with ambient molecular oxygen to generate highly reactive species (ROS), such as free radicals or free radical ions, thereby enhancing bactericidal efficiency. This method prevents the development of drug-resistant bacteria and has excellent application value. #imgabs0#

The application discloses an electrolyte and a battery, and relates to the technical field of batteries. The electrolyte comprises a lithium salt, a solvent and an additive, and a structural formula of the additive is shown in formula (I): A ‑ selected from inorganic acid radical ions. The electrolyte provided by the application is beneficial to improving the film forming performance of the SEI film and improving the film forming quality of the SEI film.

The application discloses an electrolyte and a battery, and relates to the technical field of batteries. The electrolyte comprises a lithium salt, a solvent and an additive, and a structural formula of the additive is shown in formula (I): A ‑ selected from inorganic acid radical ions. The electrolyte provided by the application is beneficial to improving the film forming performance of the SEI film and improving the film forming quality of the SEI film.

The invention discloses a positive electrode material and a preparation method thereof, a positive plate, a battery and an electric device, a ternary NCM material reacts with a cobalt-containing material and a fluorine-containing material, so that cobalt ions and fluorine ions are attached to the surface of the ternary NCM material, and a modified ternary NCM material is formed. The introduction of cobalt ions can improve the rate capability of the battery; the fluorine ions are modified on the surface of the ternary NCM material, so that a decomposition product of lithium salt in an electrolyte can form a stable deposition layer, and the cycling stability of the ternary NCM material is improved; strong acid radical ions are formed on the surface of the ternary NCM material in a strong acid reaction environment, so that generation of excessive alkaline substances in the battery is inhibited; and through the synergistic effect of cobalt ions, fluorine ions and strong acid conditions, the rate capability and the cycle performance of the battery are remarkably improved.

The invention provides a method for synchronously determining the concentration of bicarbonate ions and other electrolyte ions in a blood sample. The method comprises the following steps: A) diluting the blood sample by using a diluent containing a pH buffer agent to obtain a diluted sample; b) measuring the pH value and carbon dioxide partial pressure of the diluted sample, and calculating to obtain the bicarbonate radical ion concentration of the blood sample; and C) measuring the concentration of the other electrolyte ions in the diluted sample by using other ion electrodes, and calculating to obtain the concentration of the other electrolyte ions in the sample. The problem that bicarbonate ions cannot be synchronously detected when the concentrations of various electrolyte ions in a sample are detected by an indirect method in the prior art can be solved. The method is suitable for analytical chemistry.