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.

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 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 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 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.