44results about How to "Meet the needs of preparation" patented technology

Analysis system (10, PROSAD) for the quantitative chemical analysis of samples (A, A-1, A- 2,....), preferably but not solely in the medical field, comprising detection instrumentation or equipment (30) designed to detect the quantity of the target analytes ( [x], [y], [z] ) present in the various samples (A, A1) to be analysed, which in turn comprises a chromatography system (31), an ion source (32) and a mass spectrometer (33); a data processing system (40, 42, 43, 44) designed to process the quantitative data of the target analytes present in the samples analysed, as detected by the detection equipment (30); and an innovative database (41) containing corrective and control data and coefficients (K, C, K1) to be used to calibrate and correct the instrumental response of the specific detection equipment (30) used to analyse the samples, wherein said corrective and control data and coefficients are determined and acquired by the database at a preliminary stage (51, 52) before the actual analysis of the samples, wherein the sample to be analysed is prepared with a universal dilution solution in order to minimise the corresponding matrix effect, and wherein the data processing system determines the quantitative data of the target analytes present in the samples analysed by processing the quantitative data (Q) detected by the detection equipment, namely the mass spectrometer, taking account of the corrective and control data and coefficients contained in the database. By comparison with the analysis systems currently in use, the system for quantitative analysis of samples according to the invention presents the significant advantage of not requiring, in order to calibrate the detection equipment during the analysis of multiple samples, continuous and expensive use, for each analysis, of commercial standards of the target analytes to be quantitated.

The invention discloses an ionizing radiation degradation method for sea cucumber polysaccharide. The method sequentially comprises the following steps of: 1) completely dissolving the sea cucumber polysaccharide into distilled water to obtain an aqueous solution of the sea cucumber polysaccharide; 2) performing ionizing radiation degradation on the aqueous solution of the sea cucumber polysaccharide at normal temperature by adopting 60 Co, wherein the absorbed dose is 2 to 200kGy; and 3) standing and settling or centrifuging the obtained product in the 2) to remove non-degradable settlement and obtain a clear solution, drying the clear solution, and thus obtaining an oligosaccharide with low molecular weight. The product obtained by adopting the method has uniform and centralized molecular weight, the molecular weight distribution index is close to 1, and the product has good uniformity.

The invention relates to the technical field of dendrobe culture media preparation equipment, and discloses a potato washing, peeling and cutting integrated machine for preparation of dendrobe culturemedia. The potato washing, peeling and cutting integrated machine for the preparation of the dendrobe culture media comprises a frame body, a motor and a cylinder body, wherein the upper end and thelower end of the cylinder body are open, a mesh partition plate and an inclined partition plate are arranged in the cylinder body and divided the cylinder body into an upper portion, a middle portionand a lower portion, a center cylinder is arranged in the center of the cylinder body, the center cylinder penetrates through the three portions of the cylinder body, a rotating shaft penetrating through the center cylinder is arranged in the center cylinder in a penetrating mode, a brush seat and a water spraying mechanism are arranged at the top of the cylinder body, a material receiving tank iscommunicated with the lower part of the cylinder body through chutes, a longitudinal partition plate is arranged on the part of the center cylinder corresponding to the lower portion of the cylinderbody, and the lower end of the rotating shaft extends out of the lower end of the cylinder body and is connected to a disc cutter. According to the potato washing, peeling and cutting integrated machine for the preparation of the dendrobe culture media, the slicing and shredding efficiency is high, the integrated operation of cleaning, peeling and slices and shreds cutting of potatoes is achieved,the motor can drive to make the peeling and slices and shreds cutting tasks to be completed, and even one person can handle.

The invention provides a growing device and method for growing a wide plate-shaped bismuth germanate crystal according to a descent method. According to the method provided by the invention, a wide plate-shaped and high-quality bismuth germanate inorganic scintillation crystal is prepared according to the steps of: changing the shape of an upper separating brick 7 in the growing device and flexibly adjusting the horizontal width of the growing device and the height of a high-temperature area; designing a platinum crucible and an aluminum oxide leading crucible in huge size; utilizing a long crystal as a seed crystal to horizontally inoculate; and adjusting the uniform horizontal temperature field and the suitable longitudinal temperature gradient.

The invention relates to a method for testing mixing uniformity of a lithium battery anode material. The method comprises the steps: conductive carbon and graphite and mixed to obtain a mixed material, the actually measured mass proportion of the conductive carbon at any n positions in the obtained mixed material is tested and calculated, and if difference values between the actually measured massproportion of the conductive carbon at any n positions and the theoretical mass proportion of the conductive carbon added into the raw materials are all within + / -0.1%, it shows that the anode material is mixed evenly. The method provides the guiding direction for improving of a mixing technology, and the efficiency of the preparation process of the anode material is improved advantageously.

A rosin-modified mixed alkylphenol phenolic resin and a preparation method thereof, which is a mixed alkylphenol obtained by reacting p-tert-octylphenol, p-nonylphenol, dodecylphenol and formaldehyde under alkaline conditions The phenolic resin condensate is prepared after rosin modification and polyol esterification, wherein the polyol esterification is carried out step by step with glycerin and trimethylol propane. The phenolic resin prepared by the invention not only has high softening point, good viscoelasticity, better aliphatic hydrocarbon solubility and oil solubility, but also has light color and narrow molecular weight distribution range, and is suitable for the manufacture of special colored inks for high-speed printing.

The invention relates to the technical field of lithium batteries, and provides an ion / electron common conductor film and a preparation method thereof, which successfully synthesize an N-doped LiAlO2 film through reactive sputtering in an N2 atmosphere. Doped N replaces a part of O with a three-coordination structure in a molecule, a cross-linked network structure is formed through induction, and a weak binding force site is provided for transition of Li+. The prepared ion / electron common conductor film has high ionic conductivity and electron conductivity, and can completely replace a conductive additive or reduce the addition amount of different conductive additives in a solid-state battery. Based on the performance requirements of different solid-state batteries, the preparation requirements of the solid-state batteries with requirements on ionic conductivity and electronic conductivity can be met. The invention also relates to an electric vehicle with the solid-state battery.

The invention discloses a method for in-situ growth of a polyaniline array on the surface of a polymer film. According to the method, the surface of a polymer / aminated inorganic nano-oxide composite film is matched with gold nanoparticles, then an aniline monomer is self-assembled in a directed mode, condensation polymerization is conducted through chemical reaction under mild conditions, and the polyaniline array grows in situ on the surface of the polymer film. The array material prepared through the method is anchored on the surface of the polymer film, and can be effectively compounded with ion conductive membranes in electrochemical sensors, fuel batteries and other electrochemical devices. The interface resistance is reduced, ordering membrane electrodes are easy to prepare, and performance of the electrochemical devices is improved.

The invention belongs to the technical field of manufacturing for shielding an external geomagnetic field, and particularly relates to a cobalt-based amorphous composite material convenient to form. According to the composition of the cobalt-based amorphous composite material, a high-magnetic-conductivity cobalt-based amorphous substance is used as a functional layer for shielding the external magnetic field, and the upper surface and the lower surface of the functional layer are filled with polyimide for protecting the internal cobalt-based amorphoussubstance and facilitating forming. When the material is used, the material can form various magnetic shielding structures through stamping, so that the material can be directly used as a structural body, and an effect of shielding the external magnetic field is achieved. Compared with the prior art, the material has the characteristics of convenience in forming, light weight, certain low-frequency magnetic field shielding effect and the like.

The invention discloses an ionizing radiation degradation method for sea cucumber polysaccharide. The method sequentially comprises the following steps of: 1) completely dissolving the sea cucumber polysaccharide into distilled water to obtain an aqueous solution of the sea cucumber polysaccharide; 2) performing ionizing radiation degradation on the aqueous solution of the sea cucumber polysaccharide at normal temperature by adopting 60 Co, wherein the absorbed dose is 2 to 200kGy; and 3) standing and settling or centrifuging the obtained product in the 2) to remove non-degradable settlement and obtain a clear solution, drying the clear solution, and thus obtaining an oligosaccharide with low molecular weight. The product obtained by adopting the method has uniform and centralized molecular weight, the molecular weight distribution index is close to 1, and the product has good uniformity.

The invention discloses a preparation method of a shell powder artistic coating material capable of removing formaldehyde. The method comprises the following steps: S1, preparing the following raw materials in parts by weight: 200-400 parts of water, 20-30 parts of a soluble propylene glycol copolymer, 5-10 parts of a soluble dispersant, 2-5 parts of a soluble defoaming agent, 0.5-2 parts of a soluble preservative, 0.5-2 parts of a soluble wetting agent, 100-250 parts of shell powder, 40-80 parts of a soluble vegetable gum, 150-250 parts of soluble titanium dioxide, 2-4 parts of a soluble absolute ethyl alcohol copolymer, 5-25 parts of a soluble sodium stearate copolymer, 2-5 parts of a soluble alkaloid copolymer, 0.5-3 parts of a soluble cellulose copolymer, 20-40 parts of a soluble coloring agent, 1-4 parts of a soluble water reducing agent and 0.5-2 parts of a soluble thickener; and S2, screening the shell powder through a sieve mesh, so that the impurities contained in the shell powder can be removed, the shell powder with large particles can also be screened and removed, and the quality of shell powder raw materials is guaranteed. According to the invention, the shell powder artistic coating material does not contain harmful gases such as formaldehyde and the like, can be combined with a mesh macromolecule film-forming material for use, and has an adsorption effect on indoor harmful gases such as formaldehyde and the like, so that harm to a human body due to harmful gases such as formaldehyde and the like can be avoided.

The invention discloses shell powder art coating preparation equipment capable of removing formaldehyde, shell powder is screened through a screen, impurities contained in the shell powder can be removed, large-particle shell powder can also be screened and removed, and the quality of shell powder raw materials is guaranteed. According to the present invention, the coating does not contain formaldehyde and other harmful gases, and can be combined with the mesh polymer film-forming material to achieve the adsorption effect on the indoor formaldehyde and other harmful gases so as to avoid the harm of the formaldehyde and other harmful gases to the human body.

The invention provides a growing device and method for growing a wide plate-shaped bismuth germanate crystal according to a descent method. According to the method provided by the invention, a wide plate-shaped and high-quality bismuth germanate inorganic scintillation crystal is prepared according to the steps of: changing the shape of an upper separating brick 7 in the growing device and flexibly adjusting the horizontal width of the growing device and the height of a high-temperature area; designing a platinum crucible and an aluminum oxide leading crucible in huge size; utilizing a long crystal as a seed crystal to horizontally inoculate; and adjusting the uniform horizontal temperature field and the suitable longitudinal temperature gradient.

The invention relates to a method for testing the mixing uniformity of negative electrode materials of lithium batteries. The method comprises mixing conductive carbon and graphite to obtain a mixture, and testing and calculating the measured mass ratio of conductive carbon at any n positions in the mixture. , if the difference between the measured mass ratio of conductive carbon at any n positions and the theoretical mass ratio of conductive carbon in the added raw material is within ±0.1%, it means that the negative electrode material is mixed evenly; The method provides a guiding direction for the improvement of the mixing process, and is conducive to improving the efficiency of the negative electrode material preparation process.

The invention discloses a preparation method of a consumable electrode for electroslag remelting, and belongs to the technical field of alloy processing. The preparation method comprises the steps that a steel ingot is loaded into a resistance furnace after being demoulded, firstly, isothermal preheating is carried out, slow heating is carried out, then, rapid cooling is carried out, and slow cooling is carried out. According to the preparation method, the consumable electrode for an electro-slag furnace does not crack during the preparation process, the phenomenon that the electrode chips andcracks during the electroslag remelting process is effectively avoided, production efficiency is improved, and production cost is reduced.