109 results about "Ion selective electrode" patented technology

The invention discloses an intelligent nutrient circulation regulation and control method for a morchella esculenta fruit forest intercropping system based on the Internet of Things, particularly relates to the technical field of intelligent agriculture, and is used for solving the problem of symbiosis imbalance of hyphae and fruit trees caused by nutrient regulation and control lag and static threshold setting in the prior art. Hypha density, electric signal dominant frequency and root system absorption rate data are collected in real time through a multispectral impedance sensor and an ion selective electrode array, and a space-time aligned dynamic matrix is constructed; dynamically updating a nutrient balance threshold value based on a real-time ratio of a hypha metabolism rate to an absorption rate, and generating a nutrient transfer priority by combining collaborative analysis of a hypha transfer direction included angle and an electric signal main frequency offset gradient; a continuous transfer path is identified through a region growing algorithm, water and fertilizer amounts are distributed according to priorities, and a local area instruction is generated; and inverting the equipment response delay by using the high-frequency pulse signal, synchronously adjusting the execution frequency and updating the dynamic matrix and the threshold parameter, thereby realizing the dynamic adaptation and autonomous optimization of the nutrient supply and demand of the intercropping system.

The invention provides a pretreatment method of a fluorine-containing sample for determining fluorine content by an ion selective electrode method, and belongs to the technical field of fluorine content detection. The pretreatment method provided by the invention comprises the following steps: mixing a fluorine-containing sample, absolute ethyl alcohol and an alkali reagent, and carrying out heat treatment to obtain a heat-treated sample; the heat treatment comprises first heat treatment and second heat treatment which are sequentially carried out; the temperature of the first heat treatment is 150-170 DEG C; the temperature of the second heat treatment is 650-750 DEG C; and leaching the heat-treated sample with water, and fixing the volume of the obtained leachate to obtain the fluorine-containing sample to be detected. According to the method, the fluorine-containing sample can be prevented from splashing during alkali fusion, the safety is good, the problem that the fluorine content of the fluorine-containing sample is low in the ion selective electrode method detection process is solved, and meanwhile, the time consumption is short, the efficiency is high, and the cost is low.

The invention relates to the technical field of tobacco production, and discloses a tobacco nitrogen fertilizer application method based on ion sensing, and the method comprises the following steps: soil foundation determination; applying a base fertilizer; transplanting and fertilizing; field topdressing; fertilizing in a vigorous growth period; management after fertilization: the nitrogen content of the soil is measured again 7-10 days after each time of topdressing, the fertilization frequency and dosage are adjusted according to monitoring data, stable nitrogen supply of the tobacco is ensured, and tobacco reviving or nitrogen fertilizer waste caused by excessive fertilization is avoided. By monitoring nitrogen ions in soil in real time, application of the nitrogen fertilizer is accurately regulated and controlled, the utilization efficiency of the fertilizer is improved, and tobacco growth is optimized. The precise fertilization method based on the ion selective electrode technology aims at solving the problems that in traditional fertilization, the nitrogen fertilizer dosage is difficult to precisely control, waste is caused, and tobacco leaves turn green. By monitoring the soil nitrogen ion concentration in real time and adjusting the fertilization amount according to the growth stage, the nitrogen fertilizer utilization efficiency is improved, the environmental pollution is reduced, the tobacco growth environment is optimized, and the tobacco yield and quality are improved.

The invention belongs to the technical field of electroplating, and particularly discloses a real-time supplementing method for plating solution metal cations during electroplating. Aiming at the problems of large concentration fluctuation of metal cations and low supplementing efficiency in the traditional electroplating process, the method realizes dynamic balance of the metal cations through an electroplating synchronous electrolysis and anion exchange membrane technology. According to the technical key points, an electroplating liquid chamber and an electrolyte chamber are separated by adopting an anion exchange membrane; ions are supplemented by electrolyzing a soluble single-metal anode corresponding to metal to be plated, and meanwhile, an electrolytic cathode is arranged in an electrolyte chamber, so that metal deposition is avoided; the ion-selective electrode is used for monitoring the concentration of metal cations in real time, and the electrolytic current is automatically adjusted when the concentration deviation exceeds + / -5%. According to the method, ions are directionally supplemented through electrolysis, plating solution pollution and component fluctuation are avoided, and the uniformity and the qualification rate of a plating layer are improved. And the method is suitable for single-metal and multi-element alloy electroplating systems, can be integrated in processes such as jet electrodeposition and bath plating, is high in adaptability, and has industrial application potential.

The invention discloses an ancient tree health state monitoring method based on digital twinning, and relates to the field of ancient tree health monitoring, and the method comprises the steps: collecting point cloud data and texture data of an ancient tree, and constructing an initial three-dimensional model of the ancient tree; a micro ion selective electrode array is deployed in an ancient tree root distribution area, Ca2 and K + ion flow velocity changes are detected through a constant potential rectifier, and the mycorrhizal symbiosis index is calculated in combination with soil temperature and humidity data; uploading the mycorrhizal symbiosis index to a digital twinborn body, and displaying the active state of a root system area in an initial three-dimensional model of the ancient tree in a three-dimensional thermodynamic diagram form; a 16-channel MOX gas sensor electronic nose array is installed on the surface of a trunk of an ancient tree, and volatile organic compound (VOC) concentration data of the ancient tree are collected. According to the invention, a micro electrode array with a 45-degree inclination angle is adopted to non-destructively monitor the ion flow velocity of a root system through the mycorrhizal symbiosis index detection unit, and a three-dimensional thermodynamic diagram is generated in combination with an inverse distance weighted interpolation algorithm, so that dynamic visualization of underground mycorrhizal activity is realized.

An ion sensor is disclosed that includes an ion selective electrode including a first internal solid layer including a first insertion material, and a first ion conductive ceramic, an ion selective membrane provided on the first internal solid layer, a reference electrode including a second internal solid layer including a second insertion material, and a second ion conductive ceramic, an ionic liquid containing membrane provided on the second internal solid layer, and an insulator on which the ion selective electrode and the reference electrode are arranged.

The invention discloses an anionic surfactant and a preparation method and application thereof.The anionic surfactant has a double-wedge-shaped molecular structure, alkaline earth metal benzene sulfonate serves as a polar hydrophilic wedge tip, a long-chain alkoxy flexible chain segment serves as a hydrophobic wedge group, the surface tension of water can be remarkably reduced in an aqueous solution, and the anionic surfactant has excellent emulsifying capacity. The molecular structure is based on alkaline earth metal benzene sulfonate and has good thermotropic and lyotropic liquid crystallinity, the liquid crystal phase temperature range of the molecular structure exceeds 140 DEG C, and the phase transition temperature and the mesogenic state temperature range can be controlled by adjusting the number of carbon atoms of an alkoxy substituent. When in a mesogenic state, the molecules can form a supramolecular columnar phase through self-assembly aggregation, and the columnar structure can form a transmission channel with ion recognition in the column center direction. By utilizing the characteristic, a novel bionic ion selective conduction membrane can be constructed, and the biomimetic ion selective conduction membrane has wide application potential in the aspects of preparation of ion selective electrodes and chemical sensors and the like.

The invention relates to an electrochemical sensor and a method and device for detecting ion concentration, the method comprises the following steps: determining an ion concentration determination function corresponding to an ion selective electrode of the electrochemical sensor, the ion concentration determination function comprising a relationship between an elastic coefficient and ion concentration; acquiring a first corresponding relation between the open-circuit voltage and time according to the change of the corresponding open-circuit voltage of the ion selective electrode in the to-be-detected solution within the preset time; fitting the first corresponding relation to determine a first fitting curve function; determining a numerical value of an elastic coefficient according to the first fitting curve function; and calculating the ion concentration of the solution to be detected according to the ion concentration determination function and the value of the elastic coefficient. According to the scheme of the invention, the ion concentration data can be quickly obtained without waiting for polarization completion.

The invention relates to a method for simultaneously detecting fluorine and chlorine contents in lead concentrate by an ion selective electrode method, and belongs to the technical field of new material detection, and the method specifically comprises the following steps: (1) preparing a sample into a to-be-detected solution; (2) preparing a fluorine ion electrode standard solution and a chloride ion electrode standard solution; (3) calibrating a fluorine ion standard solution and a chloride ion standard solution; and (4) sample determination and data processing. According to the combined measurement method provided by the invention, through a layered coverage method, optimization of the ratio of potassium hydroxide to potassium nitrate and gradient temperature rise, on the premise of ensuring data quality, an accurate result is conveniently obtained; compared with a fluorine or chlorine testing method commonly used in the market, the method is short in time consumption, simple in equipment and accurate in data; in addition, the combined detection method provided by the invention breaks through the pH limit of traditional single ion detection, and provides a reliable solution for synchronous determination of fluorine and chlorine in a complex matrix sample.

The invention relates to an ammonium ion selective electrode, a preparation method thereof and application of the ammonium ion selective electrode in detection of ammonium ions in black and odorous water, and belongs to the field of electrochemical detection sensors. The method comprises the following steps: dispersing graphene oxide into water to obtain a dispersion liquid, and mixing the dispersion liquid with a Nafion solution to form a graphene oxide-Nafion mixed solution; coating on a substrate electrode, and drying to obtain a substrate electrode I; the substrate electrode I is placed in an electroplating solution for constant-current electrodeposition, and an ion selective electrode containing a solid contact layer is obtained; the electroplating solution contains 3, 4-ethylenedioxythiophene, a hydrophobic organic matter and lithium perchlorate; and dropwise adding an ammonium ion sensitive solution on the surface of the ion selective electrode containing the solid contact layer, and standing for 20-30 hours to obtain the ammonium ion selective electrode. The method is simple in preparation process, large-scale production can be achieved, the service life of the electrode is prolonged, the sensitivity of the electrode is improved, and meanwhile the stability of the electrode in fluid and the reliability of real-time monitoring are improved.

Provided is an all-solid-state ion-selective electrode capable of further stabilizing a measurement value. The all-solid-state ion-selective electrode includes a working electrode and an ion responsive membrane, the all-solid-state ion-selective electrode includes an ion-electron conversion layer disposed between the working electrode and the ion responsive membrane and electrically connecting the working electrode and the ion responsive membrane to each other, and the ion-electron conversion layer contains an ion-electron conversion substance and a polymer or contains a polymer having an ion-electron conversion function.

A water treatment system including a treatment tank, a probe, and a controller is provided. The treatment tank includes an inlet, an outlet, and a resin. The inlet is in fluid communication with a source of untreated water, and the outlet is designed to provide a treated water from the treatment tank. The resin retained within the treatment tank is designed to generate treated water. The untreated water is imparted with a first concentration of positively charged ions, while the treated water is imparted with a second concentration of positively charged ions. The probe is in fluid communication with the outlet and is designed to determine a value of the second concentration of positively charged ions at a first time period. The controller is in communication with the probe and is designed to determine a rate of change associated with measurements of the second concentration of positively charged ions.

The application relates to the field of electrochemistry, in particular to a method for determining ion concentration based on a double electrolytic cell ion selective electrode, which comprises the following steps: using a poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) modified glassy carbon electrode or a reduced graphene oxide modified glassy carbon electrode as a working electrode, using a full solid-state ion selective electrode as a reference electrode, and using a platinum wire electrode as a counter electrode; inserting the working electrode and the counter electrode into a test electrolytic cell, inserting the reference electrode into a sample electrolytic cell, connecting the test electrolytic cell and the sample electrolytic cell through Ag / AgCl as a salt bridge, and determining the ion concentration in a to-be-measured solution by adopting a constant potential coulomb analysis method. The technical scheme of the application can minimize the current response time while ensuring the accuracy of ion concentration determination, realizes rapid measurement of ion concentration, and can be applied to detection of ion concentration in human serum.

The invention discloses a method for determining the content of sulfate radicals in a water sample. According to the method, a calcium ion selective electrode is selected as an indicator electrode through a full-automatic potentiometric titration method, the amount of EDTA consumed by Ca < 2 + > and Mg < 2 + > in a to-be-detected water sample and the amount of EDTA consumed by Ba < 2 + > in a blank solution are respectively measured by using an EDTA standard solution, and then the previously titrated blank solution containing Ba < 2 + > which is excessive relative to the content of SO4 < 2-> in the to-be-detected water sample is added into the to-be-detected water sample; and measuring the content of excessive Ba < 2 + > by using an EDTA standard solution, and calculating to obtain the content of SO4 < 2-> in the water sample to be measured. The method is suitable for measuring the content of sulfate radicals in a water sample with high content of calcium, magnesium ions and sulfate radicals, and has the advantages of simple detection method, low cost and high practical value.

The present invention provides an antifouling lead ion selective electrode prepared using dendritic polypeptides, which belongs to the technical field of marine pollution detection. The present invention first electrodeposit polyaniline (PANI) nanowires on a glassy carbon substrate to form a GC / PANI substrate, then prepare MXene nanosheets and composite them with PANI to form GC / PANI-MXene, and then drop lead ion carrier Pb onto the GC / PANI-MXene. 2+ ‑ISM, and finally the electrode surface was modified with dendrimer peptides to obtain GC / PANI‑MXene / Pb 2+ -ISM / pep electrode. The electrode prepared by the present invention can inhibit the adhesion of nonspecific microorganisms and has excellent stability.

The invention discloses a preparation method and application of an all-solid-state ion selective microelectrode, and belongs to the field of ion selective electrodes. A composite material with the mass ratio of super-hydrophobic carbon nanotubes to CoWSe2 being 3: 1 is used as an ion-electron transduction layer material for constructing the all-solid-state ion selective microelectrode, and a nitrate ion selective polymer film or a hydrogen ion selective polymer film is respectively dispensed on the surface of the transduction layer; and drying to obtain the all-solid-state nitrate ion selective microelectrode or all-solid-state hydrogen ion selective microelectrode. According to the method disclosed by the invention, the all-solid-state ion selective microelectrode can more effectively inhibit the formation of a water layer, so that the microelectrode has better potential stability and longer service life when being applied to the detection of ions in an environmental water body sample.

This invention discloses an anion-selective electrode, its preparation method, and its application. The anion-selective electrode consists of two electrodes with different loading amounts, each on a conductive substrate loaded with a metal / a sparingly soluble metal salt. The preparation method involves first depositing a large amount of metal on a conductive substrate, then using it as the anode and electrolyzing it for a long time in an anion solution containing anions capable of forming the sparingly soluble metal salt, resulting in an electrode composed of a large amount of metal and its sparingly soluble salt. Then, a small amount of metal is deposited on another conductive substrate, which is then used as the anode and electrolyzed for a short time in the same anion solution, resulting in an electrode composed of a small amount of metal and its sparingly soluble salt. The two electrodes form an electrode pair. The selective electrode of this invention consists of a pair of electrodes, exhibiting uniform size, high specific surface area, and abundant active sites. Compared with traditional electrodes, it is smaller in size. The preparation method is simple and reliable. When applied to fields such as anion detection, it demonstrates high selectivity and sensitivity, making it suitable for widespread application.

The invention relates to the technical field of inorganic salt mother liquor treatment, in particular to an inorganic salt mother liquor recycling system based on MVR evaporative crystallization, which comprises three groups of sedimentation tanks and separation cylinders fixedly communicated with the bottoms of the sedimentation tanks, stirring components and sealing conical seats are arranged in the separation cylinders, and the tops of the sedimentation tanks are connected with liquid storage hoppers through liquid inlet pipes. An electromagnetic control valve is arranged on the liquid inlet pipe, and a calcium hydroxide solution, a sodium carbonate solution and a barium chloride solution are sequentially arranged in the multiple liquid storage hoppers from left to right; through staged treatment of the three groups of sedimentation tanks, the ion selective electrode sensor and the controller are combined to precisely add corresponding agents, the hetero ions are removed step by step in a targeted manner, and the subsequent progressive deep purification treatment is matched, so that a high-quality water quality basis is provided for efficient recycling of the mother liquor; and the problems of crystal quality reduction, equipment scaling and the like caused by hetero-ion enrichment are effectively avoided.

The application discloses a hemodialysis machine dialysate potassium ion real-time automatic regulation system and belongs to the technical field of medical equipment, which solves the problem of how to accurately regulate the potassium ion concentration in the dialysate of a hemodialysis machine. The man-machine interface of the host computer mainly comprises blood potassium concentration display, regulation system function selection and lower computer function setting functions. The lower computer controller mainly completes the cooperative control of the clamping valve and the peristaltic pump, realizes the function control of the electrode, and, combined with the real-time optimal regulation strategy solved by the nonlinear MPC control algorithm, realizes the switching selection of dialysate with different potassium ion concentrations by electromagnetic valve driving control. The ion selective electrode is adopted to realize the real-time sampling detection of the potassium ion concentration in blood, and the control of the peristaltic pump and the rotary clamping valve is combined to realize the calibration, cleaning and activation of the electrode. The application realizes the real-time switching of dialysate with different potassium ion concentrations and completes the accurate regulation of dialysate with different potassium ion concentrations in the dialysis process.

The invention relates to a microfluidic device for monitoring chloride ions and glucose in cerebrospinal fluid. The microfluidic device integrates a micro sensor, an automatic fluid management system and a data analysis platform. According to the equipment, a cerebrospinal fluid sample is guided to flow through a micro-fluidic chip, the chloride ion concentration is detected by adopting an ion selective electrode technology, and the range is 0.01 mM; the glucose sensor adopts a glucose oxidase electrode, and the detection range is 0.1 mM. A micro pump and a valve system control fluid inlet and outlet speed and flow division, and automatic monitoring is achieved. The data acquisition system improves signal strength and precision, and the micro-control unit controls and transmits data to a computer or a mobile terminal in real time. The device is suitable for intensive care units, neurosurgery and hydrocephalus patient management, supports remote monitoring and anomaly detection, and provides powerful support for brain disease monitoring and diagnosis. The system has the remarkable advantages of being high in precision, minimally invasive, intelligent, wide in clinical application and the like.

The invention discloses a method for determining the content of a nickel element in ferronickel, which mainly comprises the following steps: dissolving a ferronickel sample with hydrochloric acid, nitric acid and hydrofluoric acid under the condition of microwave digestion, firstly determining the content of the cobalt element in a test solution by adopting inductively coupled plasma emission spectrometry, secondly taking the test solution and adding a masking agent to mask interference elements, a copper ion selective electrode is used as an indicator electrode, an Ag / AgCl electrode is used as a reference electrode, a Cu-EDTA solution is used as an indicator, EDTA is used as a titrant, the content of nickel and cobalt elements in a sample is calculated according to the consumption of an EDTA standard titration solution, and finally the content of the nickel element can be obtained by deducting the content of the cobalt element from the content of the nickel and cobalt elements. The method solves the problem of determination of the nickel element in ferronickel, improves the precision and accuracy of analysis and measurement, and is rapid in measurement and simple and convenient to operate.

The invention discloses a maintenance-free online measurement system and method for key parameters of desulfurization slurry of a power plant, an outlet of a desulfurization slurry pipeline is divided into two paths after passing through a desulfurization slurry electromagnetic valve, one path is communicated with an inlet of a ceramic membrane filter, and the other path is communicated with a flushing water pipeline through a conventional flushing water electromagnetic valve; the flushing water pipeline is communicated with a water outlet of the ceramic membrane filter through the backwashing water electromagnetic valve, the water outlet of the ceramic membrane filter is communicated with an inlet of the chloride ion flow cell, and a water outlet of the chloride ion flow cell is communicated with an inlet of the pH flow cell; the pH flow cell is internally provided with a pH selective electrode, the chloride ion flow cell is internally provided with a chloride ion selective electrode, the system and the method can realize real-time measurement of chloride ions and pH of slurry, and the accuracy and the stability are relatively high.

The invention provides a hollow ion selective electrode and application thereof, a front conductive circuit (2) and an electrode loading area (1) are arranged on the front surface of a substrate, the front conductive circuit (2) is provided with a via hole (24), and the electrode loading area (1) comprises an electrode detection layer and a first hollow hole (13) penetrating through the substrate; the back surface of the substrate is provided with a first hollow hole (13) and a back surface conductive circuit (4), the back surface conductive circuit (4) is provided with a via hole (24), and the front surface conductive circuit (2) and the back surface conductive circuit (4) are connected with each other through the via hole (24); an insulating double-sided adhesive tape (41), a selective electrode patch (42) and a conductive adhesive tape (43) are arranged on the back surface of the substrate, the selective electrode patch (42) is tightly attached to the substrate through the insulating double-sided adhesive tape (41), the conductive adhesive tape (43) is arranged above the selective electrode patch (42), and the selective electrode patch (42) is fixed on the back surface of the substrate and is in contact conduction with the back surface conductive circuit (4).

An ion-selective electrode includes: an ion-sensitive layer containing an ion-sensitive substance; and a solid, in which at least a part of a surface of the solid is coated with the ion-sensitive layer, the ion-sensitive substance has a crown ether structure formed of at least two or more repeating units represented by Formula (a):—CR1R2—CR3X—O—  (a)where X is an organic group having an alkoxysilyl group at a terminal, R1, R2, and R3 are each a hydrogen atom or a hydrocarbon group, and R1 or R2 may be bonded to X, and at least one of the alkoxysilyl groups of the crown ether structure reacts to be bonded to at least a part of the surface of the solid.

The utility model provides an ion selective electrode structure, which comprises a shell, a plurality of holes are arranged at one end of the shell, the outer surface of one end of the shell is communicated with the inner surface of one end of the shell through the plurality of holes, and the diameter of each hole is 0.1 mm-0. 8mm; and the ion-selective membrane is cured and formed at one end, provided with the multiple holes, of the shell, and the ion-selective membrane covers and is embedded into the multiple holes so as to be exposed to the outer side of the ion-selective electrode structure through the holes. According to the utility model, liquid leakage can be reliably prevented, and the sealing effect is better.

The present application relates to the field of plant factory water culture, and specifically discloses a kind of plant factory three-dimensional cultivation automatic liquid supply equipment and hierarchical compensation control method, including independent liquid supply unit, comprising: a pneumatic sensing assembly, with a closed flexible sensing capsule inside encapsulating low-boiling working medium, the sensing capsule is configured to respond to the microenvironment humidity change caused by crop transpiration in the cultivation layer. The plant factory three-dimensional cultivation automatic liquid supply equipment and hierarchical compensation control method, through the mechanical combination of transpiration-condensation sensing capsule and nonlinear cam differential proportional valve, realizes the passive, real-time, independent compensation of the different water and fertilizer requirements of each layer of three-dimensional cultivation, and gets rid of the dependence on expensive and frequently maintained online ion selective electrode.

The utility model relates to a device for detecting the content of sodium persulfate in copper dissolving liquid and a water electroplating device, and the detection device comprises a detection container, a silver ion selection electrode, a controller and a copper ion concentration detection component, the first conveying part is used for conveying copper dissolving liquid, the second conveying part is used for conveying silver nitrate standard liquid, the third conveying part is used for conveying potassium iodide standard liquid, at least the silver ion selection electrode and the second conveying part are electrically connected with the controller, and the silver ion selection electrode is arranged in the detection container and used for detecting silver ions in the detection container. The silver ion selection electrode transmits a detection signal to the controller, and the controller is used for controlling starting and stopping of the second conveying part according to the received signal; the measuring method is simple and reliable, the content of the sodium persulfate in the copper dissolving liquid can be effectively detected, the concentration of the sodium persulfate in the copper dissolving tank in the water electroplating device can be monitored in real time, the sodium persulfate is supplemented into the copper dissolving tank in time, and the copper dissolving capacity of the copper dissolving liquid in the copper dissolving tank is guaranteed.

An ion-selective electrode with higher stability and a manufacturing method thereof are provided. A potassium ion-selective solid-state electrode comprises a conductor, an insert material formed on a conductor surface, and a potassium ion-sensitive membrane covering the insert material. The insert material is a mixed material containing Prussian blue analog particles and conductive material particles. The Prussian blue analog particles are represented by the structural formula K x Fe[Fe(CN)6] y ·nH2O. The Prussian blue analog particles have, at least in part, a monoclinic crystal structure, and x is a number greater than or equal to 1.5 and less than or equal to 2, y is a number greater than 0 and less than or equal to 1, and n is a number greater than or equal to 0.

The invention relates to a heavy metal waste liquid electro-deposition cyclic utilization treatment method which comprises the following steps: establishing an interface charge migration model based on waste liquid ion composition and a polarization curve, and quantifying migration impedance characteristics of Cu < 2 + >, Zn < 2 + > and Ni < 2 + >. Through progressive potential scanning, ions are subjected to gradient deposition according to migration resistance, preferential adsorption and reduction are induced through pulse frequency adjustment, and a metal reduction potential window is matched. A movable electrode structure is adopted to transversely move a deposition reaction area on a microscale, and reverse high-frequency pulses are applied in a deposition intermittent period or an electrode migration period to trigger stripping and crystallization of a metal deposition layer and removal of a passivation layer. And continuously depositing the electrode to form a dynamic circulation closed loop. A micro conductivity / ion selective electrode sensor array is integrated, and the concentration and intensity distribution of residual heavy metal ions in the waste liquid are evaluated. The concentration mode is switched according to the sensing result, and the optimized concentration reaches a redeposition threshold value. The AI scheduling system controls the reflux proportion of the concentrated solution, ensures the concentration matching reflux, improves the treatment efficiency and reduces the waste.

The invention relates to the technical field of ion selective electrode materials, and particularly discloses a functional polymer film for a chloride ion selective electrode and a preparation method of the functional polymer film. The functional polymer film comprises a polymer skeleton and a covalently grafted nitrogen-containing basic functional group, the polymer skeleton is selected from polyvinyl chloride, carboxylated polyvinyl chloride and other polymers, and the nitrogen-containing basic functional group is a tertiary amine group or an arylamine group and is connected with the skeleton through an amido bond, an ester bond or a polymeric chain segment. Converting into a quaternary ammonium salt structure through a quaternization reagent; the preparation method comprises the following steps: firstly, carrying out catalytic grafting reaction on the functional monomer and the polymer skeleton in an organic solvent through an initiator, then carrying out spin coating or curtain coating to form a film, drying, activating and finally carrying out quaternization treatment. The composition can be used for constructing a long-acting chloride ion selective electrode, and has the advantages of zero dissolution of an ion carrier, high selectivity and strong mechanical stability; in addition, the preparation method provided by the invention can realize controllable distribution of sites.