50results about How to "Meet the testing standards" patented technology

The invention relates to a novel water-soluble plated-copper protective agent and a preparation method thereof. A use method of the novel water-soluble plated-copper protective agent comprises the following steps that a solute rare-earth salt and an organic inhibitor form a rare-earth complex skeleton on the surface of plated copper in the presence of water as a solvent; the organic inhibitor on the surface and the rare-earth complex skeleton on the surface of the plated copper are combined into a self-assembled film; and an organic polymer film is covered on the self-assembled film by physical absorption. The three-dimensional film structure formed on the surface of the plated copper can effectively prevent the corrosion caused by harmful gas in air on the surface of the plated copper and improve salt mist resistance and anti-discoloration performances of the surface of the plated copper. A nonpolar molecule group at the end of the self-assembled film effectively improves lubricity of the surface of the plated copper, reduces an insertion and extraction force and does not influence electrical conductivity and welding performances of the plated copper.

The present invention relates to a grape siccative agent capable of promoting accelerated dehydration of grape and its preparatino method. It is made up by using (wt%) 1.2%-3.5% of potassium hydroxide, 65-85% of sodium carbonate, 8-17% of ethyl alcohol, 8.16-11.8% of edible oil, 0.8-2.3% of coloring agent, 0.5-1.4% of alum or sodium hydroxide and 0.8-2.5% of emulsifier through the processes of fully mixing according to proportion, drying, pulverizing, sieving and packaging, etc. Said product has no toxic side effect. The dried-to-raisin grapes are good in quality and coloury.

The invention discloses a traditional Chinese medicine composition for relieving cough and asthma. The traditional Chinese medicine composition comprises astragalus membranaceus, ladybell root radix adenophorae, ephedra, atractylodes macrocephala, poria cocos, rhizoma pinellinae praeparata, semen lepidii, tussilago farfara, asarum, polygala, dried ginger, tangerine peels, schisandra, jujubes and radix liquiritiae. The traditional Chinese medicine composition for relieving cough and asthma is a chronic bronchitis cough and asthma ointment prepared by immersion, decoction, concentration, alcoholprecipitation, sterilization separation and preparation. The invention further discloses an identification method of effective components of the chronic bronchitis cough and asthma ointment and a content determination method of the effective components. The chronic bronchitis cough and asthma ointment is prepared from pure tradition Chinese medicine, the side effects are small, the cost is low, the medical burden of patients is reduced, and favorable conditions for smooth promotion of the chronic bronchitis cough and asthma ointment are created; and the identification method of the effectivecomponents and the measurement method of the effective components of the chronic bronchitis cough and asthma ointment are provided, it is ensured that a mixture that the pharmaceutical effect is in accordance with pharmacopoeia specifications is screened out, and the treatment effect of the chronic bronchitis cough and asthma ointment is ensured. Meanwhile, the selected ointment meets the detection standard of modern medicine, and the final link is opened for clinical promotion and application.

The present invention relates to a grape siccative agent capable of promoting accelerated dehydration of grape and its preparatino method. It is made up by using (wt%) 1.2%-3.5% of potassium hydroxide, 65-85% of sodium carbonate, 8-17% of ethyl alcohol, 8.16-11.8% of edible oil, 0.8-2.3% of coloring agent, 0.5-1.4% of alum or sodium hydroxide and 0.8-2.5% of emulsifier through the processes of fully mixing according to proportion, drying, pulverizing, sieving and packaging, etc. Said product has no toxic side effect. The dried-to-raisin grapes are good in quality and coloury.

The invention provides a semiconductor chip character surface defect pin defect detection light source which comprises a first optical assembly, a second optical assembly and a light scattering plate.A light scattering plate is installed at the rear end of the first optical assembly, and the front end is connected with the second optical assembly. The first optical assembly comprises a square light source shell and a patch LED lamp, and the patch LED lamp is installed on the inner side of the square light source shell. The second optical assembly comprises a first double-row LED light sourcecover, a first double-row LED light source, a polarizing film, a double-row LED light source cover polarizing clamping ring, a second double-row LED light source cover, an adapter and a second double-row LED light source. The adapter, the second double-row LED light source cover and the first double-row LED light source cover are connected in sequence. The second double-row LED light source is embedded in the adapter. The first double-row LED light source, the polarizing film and the double-row LED light source cover polarizing clamping ring are installed in the first double-row LED light source cover. The light source solves the problem that three light sources of an old version are overlapped on the same track, achieves an ideal effect under the condition of being compatible with other various detection products, and meets the detection standard.

The invention discloses a silicon tetrachloride purifying process and system. The silicon tetrachloride purifying process comprises the following steps: (1), in the presence of a catalyst, making vaporized crude silicon tetrachloride react with chlorine under the protection of nitrogen, condensing a reactant after the reaction is ended to ensure that the silicon tetrachloride is liquefied; and (2), sequentially performing active Al2O3 adsorption, first-time rectification, active silicon gel adsorption, second-time rectification on a liquid phase obtained through condensation to obtain the silicon tetrachloride with a purity of more than 99.99999 percent. The silicon tetrachloride purifying system comprises a vaporizer, a fixed bed reactor, a gas-liquid separator, an active aluminum oxide adsorbing column, a first-stage rectifying tower, an active silicon gel adsorbing column and a second-stage rectifying tower which are sequentially connected. According to the silicon tetrachloride purifying process and system provided by the invention, chlorine is used for reacting with a hydrogen-containing compound in the crude silicon tetrachloride, after gas and liquid are separated, chloride in the crude silicon tetrachloride is removed by using adsorption and rectification which are alternatively set, and the purity of the silicon tetrachloride can reach above 99.99999 percent.

The invention provides a preparation method of heparin sodium. The preparation method comprises the steps of removing impurities of crude heparin sodium, carrying out primary enzymolysis by pancreatic enzyme, performing secondary enzymolysis by cellulose, cleaning under an acid condition, grading by ethyl alcohol, performing primary oxidation with hypochlorous acid, carrying out secondary oxidation with hydrogen peroxide, freezing-drying and crushing. According to the method, serine in the heparin sodium is removed, a condition that the heparin sodium is not suitable for pharmaceutical industry production in the prior art is improved, the process is simple to operate, the produced heparin has an integral structure, and the obtained product has high valence.

The invention discloses a chlorine dioxide composition with selective antioxidation, which has complete spontaneity without any assistance of machines and uses the Brownian motion molecular driving theory on physics to reach the effect of sterilizing space within very short time even though people are on site without withdrawing. When activated, the composition cannot be influenced by the concentration of acid and alkali so as to achieve strong resolving capacity to kill harmful substances such as bacteria, virus, chemical toxins, residual agricultural chemical, and the like, thereby reachingthe effect of sterilizing and purifying air; in addition, the invention can be widely used for medicine, industry, agriculture, people's livelihood, and the like.