161 results about "Ion formation" patented technology

The invention claims a simultaneous colorimetric determination method for joint determination of hexavalent chromium and lead in water, which is characterized in that it uses mixed reagents to form different colored complexes with hexavalent chromium and lead ions in water samples, and compares Colorimetric measurement of the output of two colored complexes to achieve simultaneous determination of hexavalent chromium and lead. The invention can solve the problems that the existing detection methods for hexavalent chromium and lead ions are cumbersome to operate and cannot realize rapid and on-site determination of two indexes at the same time.

The invention belongs to the manufacturing technical field of a lithium ion battery, particularly a lithium ion battery formation method. The formation method comprises the following steps of 1, performing standing for 3min or above on the internal negative pressure condition of the lithium battery; 2, charging to 4-6% of SOC at the internal negative pressure condition of the lithium battery; 3, performing one or more times of respiration type vacuum pumping-breaking operation; 4, charging to 10-25% of SOC at the internal negative pressure condition of the lithium battery; 5, performing one ormore times of respiration type vacuum pumping-breaking operation; 6, charging to 50% of SOC or above at the internal negative pressure condition of the lithium battery; and 7, performing standing for1min in a vacuum-breaking zero negative pressure environment, and finishing formation. By adoption of the method, lithium ion formation is performed in the respiration manner, so that gas in the lithium battery can be discharged effectively, and the pole piece distances of the lithium battery can be the same; and therefore, the lithium battery formation interface is uniform and tidy, and a betterformation effect is achieved.

The invention discloses a method for recycling valuable components from a waste lithium cobalt oxide battery positive electrode sheet, and belongs to the field of waste lithium battery recycling. According to the method, residual electrolyte and an organic binding agent in the positive electrode sheet are removed by using a pyrolysis method, and the thermal reduction of the positive electrode sheet lithium cobalt oxide is synchronously realized; efficient dissociation of the positive electrode sheet material particles and the aluminum foil is realized through hydraulic stirring and water bathheating, and the purposes of ion formation of the water-soluble lithium-containing compound and separation of the lithium element and the cobalt element are achieved synchronously; separating and purifying of the electrode material and the aluminum foil are achieved by adopting a screening method; and purifying of the cobalt element is achieved through an acid leaching method by means of an acid without a reducing agent. According to the technical scheme of the method, the purposes of removing organic matters in the electrode sheet and performing metal ion thermal reduction are achieved synchronously.

The invention relates to a dasatinib liposome preparation, and a preparation method thereof. The dasatinib liposome preparation is high in biocompatibility; target modification can be carried out; sustained and controlled release of dasatinib can be realized; and it is beneficial for maintenance of relatively high plasma drug concentration in a long term, improvement of drug distribution, and increasing of drug bioavailability. The dasatinib liposome preparation possesses excellent lipophilic performance, is capable of passing through phospholipid bilayer in a molecular form and entering into inner water phase; pH value of liposome inner water phase is relatively low, the dasatinib moleculars are capable of bonding with hydrogen ions so as to form dasatinib ions, and combination with anions in an ammonium salt solution and forming of insoluble salts are realized, diffusion of dasatinib in the inner water phase into an outer water phase is inhibited, dasatinib is coated by the liposome inner water phase steadily, encapsulation efficiency and storage stability are improved, and excellent in-vitro slow release effect is achieved.

The invention discloses a method for preparing nitrate intercalation cobalt and aluminum type hydrotalcite in one step through coprecipitation. An acetic acid-sodium acetate buffer solution is used; the pH value of a preparation system is stably controlled at 4.00 to 5.00; cobalt-nitrate hexahydrate and aluminum nitrate nonahydrate are used as raw materials; sodium hydroxide is used as a precipitator; deionized water is used as a solvent and a washing agent; the nitrate intercalation cobalt and aluminum type hydrotalcite is prepared through the steps of solution preparation, titration co-precipitation, hydro-thermal treatment, washing, suction filtration and drying. The preparation method has the advantages that the influence of CO3<2-> ion formation due to dissolution of CO2 in the environment can be effectively avoided; the method belongs to a fast preparation method of the pure phase nitrate intercalation cobalt and aluminum type hydrotalcite.

The invention relates to a device for implanting ions in an aluminium alloy part (5), said device comprising an ion source (6) supplying ions accelerated by an extraction voltage, and first means for regulating (7-11) an initial beam (f1′) of ions emitted by said source (6) to form an implantation beam (f1). The source (6) is an electronic cyclotronic resonance source generating the initial beam (f1′) of multi-energy ions that are implanted in the part (5) at a temperature below 120° C. The implantation of said multi-energy ions of the implantation beam (f1) regulated by the regulating means (7-11) is simultaneously carried out at a depth controlled by the extraction voltage of the source.

The invention discloses a preparation method and application of an intelligent anticorrosion coating and belongs to the field of anticorrosion protection for metal. The preparation method comprises the steps that mesoporous silicon dioxide microspheres are prepared; modified treatment is conducted on the surfaces of the mesoporous silicon dioxide microspheres; a ZrO2-SiO2 thin film doped with Ce<4+> is prepared on the surface of metal; and the mesoporous silicon dioxide microspheres adsorbing a corrosion inhibiter are mixed into sol, the surface of the ZrO2-SiO2 thin film doped with the Ce<4+> is coated with the mesoporous silicon dioxide microspheres mixed into the sol, and the anticorrosion coating is formed. When the anticorrosion coating is eroded by an NaCl solution, the doped Ce<4+> ions can be released out along with degradation of a defect position of a coating structure, and the Ce<4+> ions serving as an oxidizing agent trigger an intelligent nano container to release the corrosion inhibiter which then enters the coating, and corrosion is effectively suppressed; at the same time, a reduction product Ce<3+> of the Ce<4+> can react with hydroxyl ions gathering in a micro-cathode zone to produce ceric oxide or hydroxide which then deposits on the micro-cathode zone in a settling form; and therefore, the cathodic reaction is suppressed, and the corrosion process is slowed down.

Systems and methods for delivering a sample to a mass spectrometer are provided. In one aspect, the systems and methods can provide efficient cooling of an ion source probe to prevent overheating and the resulting degradation in ion sampling. In some aspects, such cooling can result in improved consistency and/or efficiency of ion formation. Moreover, ion source cooling in accordance with various aspects of the present teachings can allow for the use of higher temperatures in the ionization chamber (thereby improving desolvation) and/or can enable the use of lower flow rate sample sources than with conventional techniques.

The invention discloses a lead ion antigen and a preparation method and application thereof. The preparation method of the lead ion antigen comprises the following steps: 1) dissolving chelating agent to the aqueous solution of acid, and adding the aqueous solution of nitrite to carry out diazotization to obtain diazotized chelating agent; 2) mixing the diazotized chelating agent obtained in step 1) with carrier protein for coupling reaction to obtain the conjugate of the chelating agent and the carrier protein; 3) mixing the conjugate of the chelating agent and the carrier protein, which is obtained in step 2) with lead ion solution for complexation, to obtain a complex formed by the lead ion and the conjugate of the chelating agent and the carrier protein. The preparation method of the lead ion antigen and the lead ion antigen obtained with the method have wide prospect in the quick immunological detection application of the lead ion.

The invention discloses a lead ion visual detection method and detection kit. The detection kit comprises a test strip detection platform, a buffer system and nucleotide sequences A, B C and D. By means of the characteristics that the A, B, C and D are partially complementary in sequence and the A has a lead ion specific recognition element, A-B heteroduplex and lead ion recognition are utilized, the A and lead ions form a G-tetramer structure, and the A is dissociated out; then the B-chain obtained through replacement is dripped onto a sample pad of the test strip for detection, and the B forms a macroscopic strip in the detection area by continuing to be combined with the C. Neither traditional 8-17DNAzyme nor RNA synthesis nor antibodies are needed, the detection result is directly macroscopic, operation is easy, cost is low, and the lead ion visual detection method and detection kit are suitable for being used and popularized in units. The lead detection limit of the method is 1 nM which is lower than 72 nM, the maximum allowable limit, ruled by the USEPA, of lead ions in drinking water.

The invention relates to the production of water cluster ions (“hydronium clusters”) at atmospheric pressure for the chemical ionization of analyte molecules. It is proposed that a corona discharge at the Taylor cone of an aqueous liquid, preferably pure or slightly acidified pure water, is used instead of corona discharges on metal tips, which have been the usual method up to now. The hydronium clusters of the form [H(H₂O)_n]⁺ can be produced in a discharge chamber, which is separate from the ionization chamber, and introduced into the ionization chamber through a capillary. In the ionization chamber, the hydronium clusters can be heated and reduced in size by means of electrical acceleration and gas collisions, and thus made more reactive in order that analyte molecules of low proton affinity can also be ionized.

The invention generally relates to methods and devices for synchronization of ion generation with cycling of a discontinuous atmospheric interface. In certain embodiments, the invention provides a system for analyzing a sample that includes a mass spectrometry probe that generates sample ions, a discontinuous atmospheric interface, and a mass analyzer, in which the system is configured such that ion formation is synchronized with cycling of the discontinuous atmospheric interface.

The invention provides a grosvenorine-zinc complex and a preparation method thereof. The grosvenorine-zinc complex is a complex of grosvenorine and Zn(II) ions and has a structure represented by a formula (I). The preparation method comprises the following steps: dissolving grosvenorine and salt of metal zinc into water, regulating a pH value by virtue of alkali, carrying out constant-temperaturestirring, and respectively carrying out nanofiltration, desalination, membrane concentration, crystallization, washing and drying, so as to obtain the grosvenorine-zinc complex. The metal complex is formed by the grosvenorine and metal microelement zinc beneficial to a human body, so that the modification range and application range of the grosvenorine are expanded. The complexing rate of the obtained metal zinc complex is over 84%, the biological utilization rate is high, and the metal zinc complex has excellent anti-tumor biological activity and particularly has selective inhibitory activities to melanoma cells and hepatoma cells.

The invention relates to a method for testing the forming capability of the anion hydrogen bond of imidazole type ionic liquid. The method specifically comprises the following steps of: weighing 0.2-0.3g of dry ionic liquid into a nuclear magnetic tube; subsequently weighing a given quantity of perylene dimethyl sulfoxide [6]DMSO into the same nuclear magnetic tube; preparing a ionic liquid solution of 1.0mol/kg; testing the chemical shift delta2 of the 2-a hydrogen in the imidazole ring of the imidazole type ionic liquid on a nuclear magnetic resonance instrument; substituting the equation: parameter value=-3.1290+0.4151delta2 so as to calculate the parameter value; and judging the strength of the forming capability of the anion hydrogen bond of the imidazole type ionic liquid according to the delta parameter value. The method is simple in testing procedure, rapid in testing speed, less in detection equipment and cheap in reagent.

The invention provides a manufacturing method of a SiC MOSFET device and a SiC MOSFET device. The method comprises the following steps of: providing a SiC epitaxial wafer, and depositing and growing a mask layer on the surface of the SiC epitaxial wafer; etching the mask layer, forming a first etching groove in the mask layer; etching the mask layer again, and forming a second etching groove in the first etching groove; injecting first high-energy ions through an ion injection window formed by the first etching groove and the second etching groove to form a stepped well region; and injecting second high-energy ions to form a source region. According to the manufacturing method for the SiC MOSFET device of the invention, the self-alignment process is realized through the ion implantation window with the stepped morphology, the length and position of a channel can be accurately controlled, and the process is simple and stable. Meanwhile, P well regions with the step-shaped morphology are formed, a JFET region between the two P well regions is expanded, so that the current transverse output path of the JFET region is increased, and the large current density output capability of the device is improved.

The invention discloses modified anti-corrosion hydrotalcite, a water-based intelligent anti-corrosion coating, a preparation method and a coating thereof, the preparation method of the modified anti-corrosion hydrotalcite comprises the following steps: dropwise adding a mixed solution of a metal nitrate solution, sodium hydroxide and sodium tripolyphosphate into deionized water for stirring and centrifuging to obtain anti-corrosion hydrotalcite; and adding the anti-corrosion hydrotalcite and dopamine into a buffer solution, and stirring and centrifuging to obtain the modified anti-corrosion hydrotalcite. According to the invention, the anticorrosion capability is improved by utilizing the capability of passivating metal by tripolyphosphate ions to form a protective film and the lamellar barrier effect of hydrotalcite; the surface of steel is coated with the coating prepared from the modified anti-corrosion hydrotalcite, and when the steel is corroded to generate metal cations, catechol groups on dopamine and the metal cations can form a cross-linked network structure, so that the coating is adsorbed to the surface of a steel matrix, and the effects of automatic protection and intelligent corrosion prevention are achieved.

The invention provides a rapid sedimentation defluorination agent for treating steel-making fluorine-containing turbid circulating water and a preparation and use method. The rapid sedimentation defluorination agent for treating steel-making fluorine-containing turbid circulating water uses reverse osmosis concentrated water as a trapping agent to trap fluoride ions in water to form calcium fluoride precipitate, and then calcium fluoride in the water is removed by adsorption of a rapid adsorption sedimentation agent, and finally the defluorination work is completed. By means of characteristicsof high salt, high calcium and high magnesium of the reverse osmosis concentrated water, waste is turned into treasure. The reverse osmosis concentrated water is used as the trapping agent, and the problem of high fluoride ion content in the steel-making turbid circulating water is solved by combining with the rapid adsorption sedimentation agent. On the one hand, the problem of excessive fluorine content in steel-making wastewater is solved, and the purpose of reducing hardness of reverse osmosis concentrated water is achieved.

A mass analyser in which ions form packets that oscillate with a period has an ion detector comprising: a detection arrangement; and compensation circuitry. The detection arrangement may comprise: a plurality of detection electrodes detecting image current signals from ions in the mass analyser; and a preamplifier, providing an output based on the image current signals. The compensation circuitry provides a compensation signal to a respective compensatory part of the detection arrangement, based on one or more of the image current signals. A capacitance between each of the compensatory parts of the detection arrangement and a signal-carrying part of the detection arrangement affects the signal-to-noise ratio of the preamplifier output. A generator may provide a trapping field defining an ion trapping volume and a shielding conductor may be positioned between two detection electrodes, with a controller applying a voltage to the shielding conductor based on a detected image current.

The invention relates to a corrosion inhibitor, in particular to a hydrotalcite intercalation 2-amino-5-sulfhydryl-1,3,4-thiadiazole corrosion inhibitor and application thereof. Ion exchange is carried out between zinc-aluminum hydrotalcite layers, 2-amino-5-sulfhydryl-1,3,4-thiadiazole negative ions are intercalated in a hydrogen bond-electrostatic adsorption way, and the formed compound is the corrosion inhibitor. By adopting the corrosion inhibitor provided by the invention, mass production can be realized, controlled release and repairing of corroded carbon steel can be realized, and the corrosion inhibitor has long-term protective effect and can effectively carry out corrosion protection on the carbon steel, so that the corrosion inhibitor provided by the invention has obvious application value and a broad market prospect.

Provided is a treatment facility of landfill leachate and a treatment method thereof. A reactor inlet of the facility is successively communicated with a sewage tank, a sodium sulfate storage tank, a ferric salt storage tank, and a pump. The sodium sulfate storage tank, a sodium hydroxide storage tank, and a draught fan are installed on the reactor. An outlet of the reactor is communicated with a sludge thickener and a clean water basin. The method includes the following steps: (1) in the stage of water inflowing, sewage, iron ion, and sodium sulfate are added in the reactor to be stirred and then sulfuric acid is added for adjusting potential of hydrogen (PH) value; (2) in the stage of reaction, power source is turned on, the reaction is conducted by blasting aeration, and the PH value is kept from 2.5 to 4.5 in reacting process; (3) in the stage of sediment, sodium hydroxide is added into the reactor, and the PH value is adjusted to 7-8 and then the sediment is precipitated; (4) in the stage of water discharging, liquid supernatant is discharged from a water decanter to the clean water basin and sedimentary sludge is discharged into the sludge thickener. Besides, all reaction stages are automatically controlled by a control room and reaction period is 4 hours to 6 hours. Hydrogen peroxide is continuously produced and divalent iron ions added in external forms electric Fenton reagents, and therefore organics are mineralized without secondary pollution and clean production is achieved.