164 results about "Ion" patented technology

The invention belongs to the field of biochar adsorbing materials, and relates to a method for preparing modified biochar with aquatic plant waste and hematite. The method includes the following steps: (1) naturally drying aquatic plants prior to crushing to obtain aquatic plant powder; (2) crushing the hematite to obtain hematite powder; (3) weighing the hematite powder prior to putting the hematite powder into deionized water, and performing ultrasonic treatment to obtain suspension; (4) weighing the aquatic plant powder, soaking the aquatic plant powder in the suspension, and stirring and drying to obtain fully mixed aquatic plant and hematite mixture; (5) weighing the fully mixed aquatic plant and hematite mixture, putting the mixture in a batch-type atmosphere furnace, and feeding nitrogen into the furnace; performing temperature programming to the target temperature, and maintaining final-temperature pyrolysis; after the pyrolysis process is finished, obtaining the target product, namely the modified biochar. The modified biochar has strong adsorbability in nitrate and phosphate, high in stability and reusable.

The invention relates to the technical field of fluorescence sensing development, in particular to a Cd (II)-based metal organic framework crystalline material as well as a preparation method and application thereof. The chemical formula of the Cd (II)-based metal organic framework crystalline material is {[Cd3 (H2O) 2 (DMA) 2 (5-CMOIA) 2]. 6 / 5H2O} n, the organic framework material is characterized by an X-ray single crystal diffractometer, and the result shows that the organic framework material is crystallized in a triclinic system P-1 space group, the asymmetric unit of the organic framework material is composed of three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions and three The complex is composed of two deprotonated (5-CMOIA) 3-ligands, two coordinated DMA solvent molecules, two coordinated water molecules and six fifths of crystal water molecules. The solid fluorescence spectrum of the Cd (II)-based metal organic framework crystalline material is measured, the fluorescence response of the Cd (II)-based metal organic framework crystalline material to metal ions in a solution is explored, and the result shows that the Cd (II)-based metal organic framework crystalline material can effectively recognize Hg < 2 + > from different ions and can be applied to the field of fluorescence sensing.

Aspects of the present disclosure may include a method and / or a system for identifying an ion chain having a plurality of trapped ions, selecting at least two non-consecutive trapped ions in the ion chain for implementing a qubit, applying at least a first Raman beam to shuttle at least one neighbor ion of the at least two non-consecutive trapped ions from a ground state to a metastable state, and applying at least a second Raman beam to one or more of the at least two non-consecutive trapped ions, after shuttling the at least one neighbor ion to the metastable state, to transition from a first manifold to a second manifold.

A phosphor composition includes a red phosphor material having a red decay rate and a green phosphor material having a green decay rate. The red phosphor material includes a Mn4+ doped phosphor of Formula I and a Eu3+ doped uranium phosphor, and a difference between the red decay rate and the green decay rate is no more than 7 ms, AxMFy:Mn4+ (I), wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is an absolute value of a charge of the MFy ion; and y is 5, 6 or 7. A device is also provided.

The invention provides a magnetic code disc film material and a preparation method and application thereof. By introducing the TiN layer, a proper amount of nitrogen atoms can enter lattice gaps of iron, electron cloud distribution of iron atoms is changed, and the magnetic moment of the iron atoms is changed; the magnetic moment of Fe atoms can be influenced by N atoms and crystal structures, an alpha-Fe8N phase is formed in FeCoCr through introduction of N ions, the average magnetic moment of each Fe atom in the alpha-Fe8N phase is 2.4 mu B, alpha-Fe8N is a metastable phase, a sample can finally form stable gamma '-Fe4N through annealing, and the magnetic moment of the stable gamma'-Fe4N is generally about 2.5 mu B-2. 7 mu B and is higher than the magnetic moment 2.2 mu B of the Fe atoms in metal Fe; besides, Ti forms a Ti-Fe weak magnetic phase pinning magnetic domain wall in the FeCoCr thin film, and the coercive force and residual magnetism of the FeCoCr layer can be effectively improved at the same time through the method.

A method and system is provided for operating a quantum information processing (QIP) system, including a dual-space, single-species architecture for trapped-ion quantum information processing. An exemplary method of preparing the ions include i) applying a first optical beam to the plurality of ions to shelve at least a portion of the plurality of ions from a first state to a second state, ii) applying a second optical beam to the plurality of ions to deshelve the at least a portion of the plurality of ions from the second state to a third state, iii) applying a third optical beam to optically pump the at least a portion of the plurality of ions from the third state and to a fourth state, and iv) iteratively repeat i) to iii) to transition a remaining portion of the plurality of ions to the fourth state.

The invention discloses a method for detecting heavy metal trivalent antimony ions / hexavalent chromium ions in an environment based on a color developing agent, and belongs to heavy metal ion detection.The method comprises the following steps that a sample to be detected is taken, and acid liquor is added to adjust the pH value of the sample to be detected; adding a color developing agent and a surfactant into the to-be-detected solution, mixing, and standing; after full reaction, the absorbance is measured through a spectrophotometric method, the measured absorbance value of the trivalent antimony ions / hexavalent chromium ions corresponds to the standard curve, and the concentration of the trivalent antimony ions or hexavalent chromium ions in the to-be-measured sample is obtained. Sb < 3 + > / Cr < 6 + > reacts with a color developing agent to generate a stable orange complex, and the stable orange complex has the characteristics of low detection limit and high sensitivity to trivalent antimony ions and hexavalent chromium ions. In addition, the method does not depend on large instruments and equipment, and is simple, efficient and convenient to operate.

The invention discloses a material ion transmission mechanism research method based on an electronic holography and integral differential phase contrast technology. The method aims at solving the key problem that a traditional characterization means is difficult to directly associate material defects with a local electric field at the same time of an atomic scale. The method comprises the following steps: preparing a transmission electron microscope film sample containing a specific defect structure and applying a tiny bias voltage; obtaining two-dimensional potential and electric field distribution in the sample by using an off-axis electronic holographic technology; obtaining an atomic structure image capable of distinguishing light elements in the same region by using an integral differential phase contrast technology; and finally, carrying out accurate space alignment and correlation analysis on the information of the specific atom defect and the local electric field so as to directly reveal the coupling relationship between the specific atom defect and the local electric field and the influence mechanism of the specific atom defect on ion transmission. The method disclosed by the invention is particularly suitable for illuminating the ion transmission behavior at the shear surface in the Wadsleep-Roth phase niobium-based fast-charging negative electrode material, and has the beneficial effects of high mechanism analysis depth, strong technical complementarity, guiding significance to material design, good method universality and the like.

The invention discloses application of a dual-emission Eu < 3 + > and Cd-MOF material in detection of polluting anions. Experimental results show that the material has an obvious fluorescence quenching effect on CrO4 < 2-> and Cr2O7 < 2->. When the amount of the added CrO4 < 2-> is 2.0 [mu] mol, the fluorescence intensity of the Eu < 3 + > Cd-MOF is quenched to 93.15% (500 nm) and 94.51% (620 nm); similarly, when the addition amount of Cr2O7 < 2-> is 2.0 umol, the fluorescence intensity of the fluorescent powder is quenched to 86.25% (500 nm) and 83.31% (620 nm). Therefore, the dual-emission Eu < 3 + > and Cd-MOF can selectively identify CrO4 < 2-> and Cr2O7 < 2-> ions, and has the advantages of rapidness, simplicity, convenience, sensitivity, accuracy and the like.

A method for distinguishing metal ions Cu 2+ and Mn 2+ This method utilizes a pH clock reaction system of "urease-CO(NH2)2-H2SO4" as the distinguishing solution, based on the Cu of the sample to be distinguished. 2+ and Mn 2+ The reactions between Cu and the products of urea hydrolysis catalyzed by urease differ, resulting in different patterns produced by the pH clock system, thus enabling the determination of Cu... 2+ and Mn 2+ Qualitative analysis of Cu involved in this invention. 2+ and Mn 2+ The qualitative analysis method is characterized by high accuracy, ease of operation, and convenience.

A method for analyzing a sample using an electron microscope includes: generating ions, molecules, or other particles, such as droplets, from a target sample; introducing the ions, molecules, or other particles into a vacuum cavity of a transmission electron microscope (TEM) in a direction intersecting the path of a pulsed electron beam; recording an electron diffraction pattern associated with the ions through which the pulse passes at each pulse of the electron beam; and calculating the three-dimensional (3D) structure of the ion species based on the recorded electron diffraction pattern.

The invention discloses a water-producing gas well formation water distinguishing method, device and equipment and a medium, and relates to the technical field of formation water distinguishing. The method comprises the following steps: acquiring a chromatogram of output filtrate, determining an ion determination result according to the chromatogram, and generating a relation curve graph of a sampling date and the ion content in the ion determination result according to an anion determination result and a cation determination result; determining the gas well producing area layer water according to the relation curve graph of the sampling date and the ion content in the ion measurement result; and judging the water type of the formation water according to the affinity between anions and cations in the ion measurement result. And meanwhile, the formation water production reservoir is judged, so that the accuracy of distinguishing the formation water of the water production gas well and the applicability of distinguishing the formation water can be improved.

Multivariate machine learning (ML) techniques can be applied to an XRF spectra and mitigate matrix effects and enable simultaneous quantification of composition, even when markers elements or ions of interest are imperceptible in the XRF spectra. Physical (e.g., density) and chemical (e.g., total dissolved solids and hardness) properties of the material can be also quantified using ML techniques.

The invention provides a sample ion detection method and a sample dilution method, and belongs to the technical field of trace detection. Comprising the following steps: acquiring the conductivity of a to-be-tested sample, substituting the conductivity into a preset dilution relation function, and obtaining the dilution multiple of the to-be-tested sample by utilizing the dilution relation function; diluting the to-be-tested sample according to the dilution ratio to obtain a diluted sample; and testing the diluted sample to obtain the ion concentration. Therefore, after the to-be-tested sample is taken, the accurate dilution multiple can be obtained only by measuring the conductivity of the to-be-tested sample and substituting the conductivity into the dilution relation function, and the sample is diluted and tested, so that accurate dilution and test of different samples are realized, namely, the different to-be-tested samples are adaptively diluted and tested by adopting the appropriate dilution multiple; therefore, the test data is more accurate, and the test efficiency is higher.

A computer implemented method (200) comprising selecting one or more pairs of energy levels of an isotope of an ion for a qubit for a quantum computer, wherein each of the one or more pairs of energy levels comprises a first metastable state and a second metastable state.

The molecular adsorbent according to the present application adsorbs a polar molecule, and contains, as an active ingredient, an ion exchanger having: an ion exchange resin containing an ion exchange group which is a strongly acidic group; and a metal ion or a complex of a metal ion which is ion-exchanged with the ion exchange group. The polar molecule contains a nitrogen atom having a lone pair of electrons. The metal ion is one or more of a metal ion of 3 valence or more, Co 2+ , Cu 2+ , Ni 2+ , Mn 2+ , V 2+ , Cs + , Rb + , and K + .

A positive electrode mixture according to the present invention contains a sulfur-based active material, a carbon material that has pores, an ion conductor that contains elemental phosphorus and / or a modified product of the ion conductor, and a solid electrolyte, wherein in a P2p spectrum in surface element analysis by X-ray photoelectron spectroscopy, the following expression (1) is satisfied.　(1): IA / IB > 0.20 (In the formula, IA is the signal strength at a position A where the binding energy is around 135.4 eV, and IB is the signal strength at a position B where the binding energy is around 134.25 eV).

The invention belongs to the technical field of ion measurement, and particularly relates to a method for measuring ions with different sizes, which comprises the following specific steps: S1, sample pretreatment: performing ultrasonic treatment on a sample solution, centrifuging the sample solution, and filtering the sample solution; s2, field flow separation: firstly setting a field flow separator, and then primarily separating ions in the sample solution according to the size by using the field flow separator; s3, verifying the separation effect: firstly collecting part of the separated sample solution flowing out, then preliminarily verifying the size distribution condition of the separated ions, then comparing the obtained result with the expected separation effect, and if the separation effect is found to be poor, carrying out separation again until the satisfactory separation effect is achieved. By adopting the field flow separation technology, measurement errors caused by insufficient separation can be avoided, and the measurement accuracy is greatly improved.

The invention provides a method for comparing the influence of electrostatic interaction in nano channels with different sizes on ion transmission rate, which comprises the following steps: measuring the ion transmission rate and nanofiltration membrane channel south potential under different pH values, calculating the change delta P and delta phi of the ion transmission rate and nanofiltration membrane channel south potential, and finally normalizing the ion transmission rate delta P to the channel south potential delta phi to obtain the ion transmission rate. The influence delta P / delta phi of the unit channel south potential on the ion transmission rate is calculated, the unit channel south potential adjusting ion transmission capacity in the nano channel can be obtained, and the influence of the electrostatic interaction in channels of different sizes on ion transmission is evaluated; the method has the advantages of being convenient to operate, simple in calculation and the like.

The disclosure extends to multiple ion nanoparticles for delivery of agricultural products and ions. A composition includes a structural particle and a plurality of ions disposed around the structural particle. The plurality of ions forms a plurality of ion layers surrounding the structural particle. The plurality of ions comprises a plurality of a first ion having a positive charge and a plurality of a second ion having a negative charge.

A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4 I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein a value of a Hammett acidity function of the first solution is at least −0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 μm.

The invention belongs to the field of X-ray long-afterglow luminescent materials. The technical problems that traditional Pr < 3 + > doped fluoride is insufficient in afterglow performance, X-ray imaging depends on continuous irradiation, and color scattering noisy points exist are solved. The NaLuF4: Mg / Cs / Pr fluoride material is prepared by adopting a Cs < + >-Mg < 2 + > co-doping regulation strategy, the material is synthesized by an oleic acid-octadecene liquid phase method, and the X-ray excitation afterglow intensity of Pr < 3 + > is improved by about 110 times by utilizing the synergistic effect that Cs < + > enhances X-ray absorption and Mg < 2 + > optimizes a carrier shallow-deep trap level; the material is prepared into the high-light-transmittance rare earth nano flexible scintillation screen with the resolution ratio of 20.01 lp / mm. According to the invention, zero-noisy-point time-delay imaging after low-dose X-ray transient irradiation is realized, continuous irradiation is not needed, the radiation dose is lower, and the method is mainly applied to the field of X-ray time-delay imaging of low-dose medical diagnosis and industrial nondestructive testing. The method does not need continuous X-ray irradiation, and has important application value in the fields of medical diagnosis, industrial nondestructive testing and the like.

A method of mass spectrometry comprising the steps of: a) providing a mass spectrometer having a time-of-flight (TOF) mass analyzer; b) performing a survey scan including isolating a packet of precursor ion species and mass analyzing the ions to obtain a first mass spectral data; c) determining a time window during which one of the precursor ion species, or fragment or product ions derived therefrom, was mass analyzed; and d) isolating another packet of precursor ion species and mass analyzing the ions to obtain a second mass spectral data, wherein a pusher of the TOF mass analyzer is pulsed according to a plurality of respective successive pulse sequences during a plurality of pulse sequence periods, each pulse sequence comprising a pulse sequence period. f) selecting from the second mass spectral data that was acquired during a time period corresponding to a time window of the survey scan to acquire selected data; g) repeating steps d) to f) at least one further time to obtain a plurality of sets of selected data; and combining the plurality of sets of selected data and decoding the combined data to acquire mass spectral data indicative of the mass-to-charge ratios of ions detected by the TOF mass analyzer.

To provide a fluorophosphate glass having a low thermal expansion coefficient.SOLUTION: There is provided an optical glass which contains O ions, F ions, Al ions, P ions, Mg ions, Ca ions, Sr ions and Ba ions as essential components, wherein in the glass composition represented by atomic percentage, the ratio (O / P) of the content of O ions to the content of P ions is 3.30 or more and 4.50 or less, the ratio (Al / P) of the content of Al ions to the content of P ions is 1.50 or less and the ratio (F / Al) of the content of F ions to Al ions is 6.00 or less, and in the glass composition represented by cation percentage, the total content (Mg+Ca+Sr+Ba) of Mg ions, Ca ions, Sr ions and Ba ions is 40.00 cation % or more and the cation ratio ((Mg+Ca) / (Mg+Ca+Sr+Ba)) of the total content of Mg ions and Ca ions to the total content of Mg ions, Ca ions, Sr ions and Ba ions is 0.40 or more.SELECTED DRAWING: None

The present disclosure provides methods for determining concentration of various trace metal ions in aqueous solutions, such as gold plating solutions. At a particular fixed reduction potential, the cathodic current can suddenly increase in magnitude after a certain period of time (e.g., an incubation time) passes in the presence of a trace metal ion (e.g., Tl(I)), where the incubation time is inversely proportional to the concentration of trace metal in the electrolyte. The concentration of the trace metal can be calculated after measuring the incubation time and comparing it against a calibration curve.

A method of operating an instrument which comprises a first and second ion stores, comprising determining whether a target accumulation time for the second ion store is greater than a threshold accumulation time. When the target accumulation time is less than the threshold accumulation time, ions are accumulated within the second ion store using an accumulation time that is based on the target accumulation time. When the target accumulation time is greater than the threshold accumulation time, ions are accumulated within the first ion store using a first accumulation time, the ions accumulated in the first ion store are passed to the second ion store, and further ions are accumulated within the second ion store using a second accumulation time.

A method for determining mass defect diagrams with user-defined mass scaling, filtering, and labeling in a mass spectrometer is described. One implementation of the method includes: (i) generating a mass defect diagram from the data, (ii) filtering out all ions in the mass defect diagram that do not have an assigned isotopic ion, (iii) selecting an unidentified ion, (iv) determining an isotopic pattern for the unidentified ion, (v) identifying one or more elements indicated by the isotopic pattern for the unidentified ion, (vi) searching for formulas containing one or more elements indicated by the isotopic pattern for the unidentified ion, (vii) determining a chemical formula for the identified ion, and (viii) displaying a chemical formula for the unidentified ion.

A process for preparing a Mn+4 doped phosphor of formula I Ax [MFy]:Mn+4 I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein a value of a Hammett acidity function of the first solution is at least −0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 μm.

The invention provides a method for enhancing second harmonic emission based on a nonlinear energy transfer mechanism, which comprises the following steps of: obtaining a heterojunction formed by a donor two-dimensional material A and an acceptor two-dimensional material B, and then exciting and inducing nonlinear energy transfer through a two-photon pump light source, thereby enhancing the second harmonic emission of the acceptor two-dimensional material B; in the heterojunction, the donor two-dimensional material A is (LA) 2 (A) n-1PbnI3n + 1; wherein LA is an alkyl ammonium ion or a phenylammonium ion of C3-C6; a is an alkyl ammonium ion of C1 to C2 or a formamide ion of C1 to C2; n is 1 to 4; and the receptor two-dimensional material B comprises at least one of MoS2, MoSe2, WSe2 and h-BN. According to the scheme, the SHG of the acceptor material can be effectively enhanced.

The application discloses a large-area transparent Sb-based and doped perovskite scintillator material and a preparation method and application thereof. The perovskite scintillator has a general formula of (R-C 18 H 15 P)2Sb y M 1‑y X5, wherein R is selected from one or more of -CH3, -CH2Cl, -CH2CH3, -CH2OCH3, -(CH2)3CH3, -CH2C6H4CH3 and -C6H5; M is a metal ion selected from B-site doping ions; X is selected from one or more of Cl ‑ , Br ‑ and I ‑ ; and y is selected from 0-1 and is not 0. The perovskite scintillator material has the advantages of high quantum yield and large X-ray absorption coefficient, and in the structure, a large-area transparent Sb-based perovskite with controllable shape is obtained for the first time, and can be applied to the field of ray detection to obtain highly clear ray imaging.