42 results about "Matrix substance" patented technology

The invention relates to a one-step molding method of a titanium silicalite molecular sieve. The method comprises the following steps of crystallizing the titanium silicalite molecular sieve subjected to hydro-thermal synthesis; directly adding a matrix substance, a binder, a peptizing agent and a pore-enlarging agent without separating, washing and calcining; pulping; performing spray forming; and calcining the formed microspheres to remove a template agent to obtain large formed titanium silicalite molecular sieve particles which can be applied to ammoximation of cyclohexanone and epoxidation of olefin.

The invention discloses a coated positive electrode material of a lithium-ion battery. A matrix substance of the positive electrode material is a high-nickel positive electrode active material Li<delta>Ni<x>Co<y>M<z>O<2>; a layer of uniform coating is arranged on the surface of the matrix substrate; and the coating is a metal oxide and/or a lithium-ion conductor compound and accounts for 0.01%-10% of the mass of the matrix substrate. The invention further discloses a preparation method of the coated positive electrode material of the lithium-ion battery. The method comprises the steps of firstly, fully dissolving a soluble metal salt into deionized water to obtain a water solution of the soluble metal salt; adding the matrix substrate to the water solution of the soluble metal salt, mixing to obtain a turbid liquid, carrying out full stirring, filtering and drying and then burning to obtain the coated positive electrode material of the lithium-ion battery. The preparation method of the coated positive electrode material of the lithium-ion battery is suitable for the high-nickel positive electrode material; and in-situ coating is carried out on the surface of the matrix substance to form a uniform coating layer, so that the effects of reducing the pH value and improving the cycle performance of the positive electrode material are achieved.

In a mass spectrometer, sample ions are produced by using matrix assisted laser desorption with a matrix substance that supports spontaneous, non-ergodic ISD fragmentation and a laser light source with nanosecond light pulses and a multiple spot beam profile. A plurality of individual time-of-flight spectra are recorded from the resulting ions in such a way that amplification of ion signals in the mass spectrometer detector is initially reduced so that only ions with masses near a mass range limit are initially recorded. During the repeated acquisitions of the individual time-of-flight spectra, both the detector amplification and the mass range limit are increased. By these methods, it is possible to evaluate c and z fragment ions in lower mass ranges and to directly read N-terminal sequences from near terminus up to 80 amino acids and beyond, and C-terminal sequences up to more than 60 amino acids.

The invention relates to the cell disruption of microbes and the preparation of the microbe proteins for mass spectrometric analysis. The cells of microbes from microcolonies are disrupted by physical or chemical means directly on the nutrient medium. The released proteins are then transferred to sample supports by direct contact with their contact surfaces; electrophoresis can be used for assistance. Once the the proteins are firmly adsorbed on the contact surfaces, they can be washed with water in order to remove substances which interfere with the ionization process. For analysis by matrix-assisted laser desorption (MALDI), the proteins are prepared on the contact surfaces of the sample supports with matrix substances to form MALDI samples; the sample supports are then introduced into a MALDI mass spectrometer for the acquisition of the mass spectra. The microbes are identified by similarity comparisons between the mass spectra of the microbe proteins and similarly obtained reference spectra.

The object of the present invention is to provide lighting appliances of various shapes, which use light emitting diodes as a light source, having excellent light directivity, light-diffusing property, durability and shock-proof property.

The lighting appliance 1 according to the present invention is constituted by including a light illuminating member 13 formed by sealing off a substrate 8 mounted with light emitting diodes 81 therein with a synthetic resin material 9 prepared by mixing particulates 92 capable of diffusing light irradiated from the light emitting diodes 81 to the matrix substance 91.

The invention relates to a crosslinking two-component polyurethane composition consisting of (i) a constituent A containing polyols and additives, and (ii) a constituent B containing between 100 and 65 wt. % of aromatic polyisocyanates, between 0 and 35 wt. % of aliphatic polyisocyanates, and between 0.05 and 3.0 wt. % of a retarder, and optionally additives, the mixed composition having a viscosity (EN ISO 2555) of between 100 mPas and 3000 mPas at 25 DEG C, and the crosslinked composition having a glass transition temperature (Tg) of higher than 50 DEG C and a pot life of longer than 60 minutes. The two-component polyurethane composition is suitable as an adhesive and as a matrix substance for composite materials.

A method includes a step of bringing a plastic matrix substance in contact with a reinforcement fiber structure to form an intermediate material. Further, the method includes a step of curing the matrix substance of the intermediate material to form a composite material. Before the plastic matrix substance is brought into contact with the reinforcement fiber structure, it is mixed with a diluent to form a mixture.

To provide a sample preparation device that is appropriate for the formation of a matrix film for MALDI through vacuum vapor deposition. A sample preparation device is provided with: a sample substrate support unit 23 for supporting a substance to be analyzed on a substrate S so that the substance faces a vapor deposition source 21 for a matrix substance J; a light amount measurement unit for irradiating a matrix film vapor deposited on the substrate S with measurement light diagonally and detecting the amount of measurement light that has transmitted through or has been reflected from the above-described matrix film diagonally; and an adhesion prevention means 23a for preventing the matrix substance that has flown off from the above-described vapor deposition source 21 from adhering to the above-described light amount measurement unit.

After a sample such as a biomedical tissue section is attached to an electrically-conductive slide glass (S1), the film layer of a matrix substance is appropriately formed by vapor deposition so as to cover the sample (S2). The crystal of the matrix substance in the film layer is very fine and uniform. Subsequently, the slide glass on which the matrix film layer is formed is placed in a vaporized solvent atmosphere, and the solvent infiltrates into the matrix film layer (S3). When the solvent sufficiently infiltrated is vaporized, a substance to be measured in the sample takes in the matrix and re-crystallized. Furthermore, the matrix film layer is formed again on the surface by the vapor deposition (S4). The added matrix film layer absorbs excessive energy of a laser beam during MALDI, which suppresses the denaturation of the substance to be measured and the like, so that high detection sensitivity can be achieved while high spatial resolution is maintained.

The invention relates to therapeutic drug monitoring (TDM) by mass spectrometry, particularly to the monitoring of immunosuppressant levels in blood of patients with transplanted organs. A liquid phase extraction procedure reproducibly extracts the therapeutic drug molecules from whole blood and mass spectrometric analysis on MALDI instruments, with a matrix substance for highest sensitivity and special sample deposition procedure for a reproducible ionization of the therapeutic drug molecules. Suitable internal standard substances added to the blood in exact amounts ensure a correct absolute quantification. The method is particularly suitable for immunosuppressants belonging to the class of macrocyclic lactones (sirolimus, tacrolimus, everolimus) and cyclic polypeptides (cyclosporin A), and even works as a multiplex method for all four immunosuppressants simultaneously.

The invention discloses an acid anhydride and epoxy high-molecular chain extension tackifier, and a preparation method and application thereof. The chain extension tackifier is prepared from, by mass, 65 to 90 parts of a matrix substance, 5 to 35 parts of a glycidyl auxiliary agent, 5 to 35 parts of an anhydride auxiliary agent, 0.1 to 1 part of an antioxidant and 0.1 to 1 part of a heat stabilizer. The matrix substance in the invention is a polyhydric alcohol substance, and a multi-component composite system is prepared by utilizing the reaction activity of a glycidyl auxiliary agent, anhydride and an alcoholic hydroxyl group. The composite system can replace anhydride or epoxy polymer chain extenders to be applied to the field of biodegradable plastic processing, so that the processability is improved, and the defects that the existing biodegradable composite material is high in cost and does not have a special processing aid are overcome. Meanwhile, due to the fact that the glycidyl auxiliaries and the anhydride auxiliaries are various, the auxiliaries with corresponding molecular structures can be designed according to different biodegradable materials, and the application range is wide.

The invention discloses a device and a method for mechanically cleaning an inner wall of a barrel-shaped container. The device comprises a container, a hairbrush chain, a pressing mechanism and an electromagnetic module driving mechanism, wherein the hairbrush chain comprises a second rod member and a third rod member which are connected with a first rod member in a hinge manner; a locking mechanism is arranged between the second rod member and the first rod member; a strong magnetic block is embedded in each of the first rod member, the second rod member and the third rod member; an electromagnetic module is positioned at the outer part of the container; the electromagnetic module driving module is used for driving the electromagnetic module and enabling the hairbrush chain to move around the inner wall of the container; the pressing mechanism is arranged above an operating hole of the container, and acts on the third rod member. The invention discloses a cleaning method. According to the device and the method for mechanically cleaning the inner wall of the barrel-shaped container, the inner wall of the container is mechanically cleaned, the interference of residual substances and scale substances in the container on the concentration and purity of solution matrix substances in the container is eliminated, the manual workload is reduced, and the continuous normal operation of automatic equipment is guaranteed.

The invention provides a filter disc directed at XRF element determination and a preparation method thereof, a determination box, and an element determination method, belonging to the field of element determination. The preparation method for the filter disc comprises the following steps: respectively putting standard liquids of a plurality of elements with to-be-determined concentrations onto carriers and carrying out drying so as to obtain original filter discs; and preparing final filter discs with sizes matching with to-be-determined substances from the original filter discs, wherein standard liquids of one or more to-be-determined elements are put on the carriers. According to the invention, samples of any matrix material can be rapidly and accurately tested; one defect, i.e., the defect that to-be-tested matrixes like plastic and soil have to be used after calibration of standard substances like plastic and soil of corresponding matrixes with apparatuses, of an X-ray fluorescence spectrometer is overcome; standard matrix substance calibration apparatuses are not needed; and the advantages of direct determination, low cost, convenience and rapidness are obtained.

The invention discloses an environmental response type glucosyl nanoparticle and a processing method thereof, and belongs to the technical field of starch-based material processing. The environmentalresponse type nanoparticle is prepared from a glucosyl nanoparticle through a novel enzyme surface thinning-charge positioning modification composite modification technology. The method has the characteristics of simple and controllable process, greenness, environmental protection, continuous production and the like, and the prepared product can be used in the fields of foods, medicines, chemicalindustry and the like as a matrix substance.

The invention discloses a composite photocatalyst SiC/CdLa2S4 and a preparation method and application of the composite photocatalyst SiC/CdLa2S4. A hydrothermal method is adopted for synthesizing a composite photocatalyst matrix substance CdLa2S4 by one step, and the composite photocatalyst with the regular morphology is prepared by adopting a burning method. The composite photocatalyst can catalytically degrade organic dyes under UV irradiation, has high efficiency on degrading ozo organic dyestuffs particularly, and also can decompose water to generate a clean energy substance-hydrogen under the UV irradiation.

The invention provides a high-barrier PVA-based composite film, which comprises the following components (by weight): 20-30 parts of corn starch, 40-50 parts of PVA, 10-20 parts of modified hydrotalcite, 30-50 parts of a keratin solution, 10-20 parts of sodium carboxymethylcellulose, 5-15 parts of polyethylene glycol, 3-10 parts of a cross-linking agent, 3-10 parts of a plasticizer, and 100-150 parts of water. Since the modified hydrotalcite layer has a high degree of encapsulation of molecular chains of matrixes, the polyvinyl alcohol molecular chain is difficult to diffuse into the water, thus achieving the effect of fixing the matrix. And since the cross-linking effect between various matrix substances also blocks the diffusion of water molecules, the mechanical properties of the composite material are maintained at a high level.

The present invention provides a sample pretreatment device capable of accurately and efficiently removing nozzle clogging caused by precipitation of crystals of a matrix material. Provided is a sample pretreatment device configured to apply, to the surface of a sample, a solution in which a predetermined substance is dissolved or dispersed. In order to properly and efficiently unclog a nozzle dueto the deposition of the crystal of a matrix substance, the device includes a spray unit (3) including a solution tube (32) for the solution to pass through, a gas tube (33) for a spray gas to pass through, and a nozzle part (30) configured to spray the solution arriving at the terminal end of the solution tube by ejection of the spray gas through the gas tube, as well as a cleaning liquid supplier (4, 41) configured to put a cleaning liquid on an opening of the nozzle part from outside the spray unit.

The invention discloses a degradable food packaging bag which is prepared from the following raw materials in parts by weight: 60-70 parts of modified PBAT, 3-4 parts of reinforcing filler and 0.8-1 part of plasticizer. The invention further discloses a preparation method of the packaging bag. The preparation method comprises the steps that S1, a vacuum drying box is used; S2, extruding and granulating are performed; and S3, the plastic particles are made into packaging films through a film blowing machine, and the packaging films are slit and bagged. According to the packaging bag, the modified PBAT is used as a matrix substance of the packaging bag material, the advantages of PLA and PBAT are integrated, the interfacial compatibility of PLA and PBAT can be improved under the action of the modifier, and the hydrolysis resistance of polyester is improved; by adding the reinforcing filler, the compactness and the mechanical property of the packaging film are improved; the adopted raw materials belong to biodegradable materials, so that the obtained packaging bag is degradable, meets the environmental protection requirement, has high mechanical property and barrier property, and is high in practicability.