5results about How to "Quantitative low" patented technology

The application discloses a kind of low basis weight high-density fiber material preparation methods, the fiber material includes fiber layer and hot melt powder layer;The fiber layer is filled with superfine powder;Including the following steps: (1) polyvinyl alcohol ultra-short fiber, polyester superfine ultra-short fiber, fine denier ultra-short cellulose fiber are made into mixed slurry, then wet-laid web is made;(2) the wet-laid web is consolidated into intermediate material, then the intermediate material hot water bath is made, and polyvinyl alcohol ultra-short fiber is dissolved;(3) superfine powder is made into suspension, and filled into intermediate material;(4) hot melt powder is made into suspension slurry and coated and fixed.Reduce the unit area mass of material, increase the density of material under low basis weight, utilize the thermal closing pore effect of superfine powder, ensure the safety of battery separator product.Realize the technical requirement of low basis weight, high density and high porosity, solve the problem that existing fiber material cannot meet the use requirement of battery separator.

The invention discloses a method for preparing lactulose by electrolysis, comprising the following steps: S1, electrolyzing water; applying a direct current power supply until the pH value of the solution is 14.0 to 14.8; stopping the electrolysis; S2, adding lactose and a montmorillonite / chitosan / Al(OH)3 complex to one side of a hydroxyl aggregation unit; S3, stirring, converting lactose into lactulose, reducing the pH value of the solution of the hydroxyl aggregation unit to 7.5 or below, and at the same time, adding a montmorillonite / chitosan / Al(OH)4 ‑ Converted into montmorillonite / chitosan / Al(OH)3 complex; S4, filter the material, separate the solution and the solid from each other, and obtain a mixture of lactose and lactulose; S5, separate the obtained mixture of lactose and lactulose through a membrane, crystallize, and dry to obtain lactulose; the present invention utilizes electrolysis in conjunction with an electric field to separate and enrich hydrogen ions and hydroxide ions, enriches and catalyzes the conversion of lactose into lactulose through adsorption, and the catalyst has a stable structure and is easy to separate.

The invention discloses a quantitative detection method for carbonyl compounds in roasted mutton, and belongs to the technical field of meat flavor substance detection. According to the method, 18 carbonyl compounds in the roasted mutton are quantitatively detected at the same time, solid-phase microextraction is firstly adopted for derivation on fibers, and then GC-MS / MS is combined for quantitative detection of the 18 carbonyl compounds at the same time. According to the method, an internal standard curve method is adopted, and an internal standard curve is configured in a roasted mutton odorless matrix system. The method comprises the following steps: respectively weighing blank reagent water, glyceryl triacetate and the matrix without the target compound in the meat product to prepare the odorless matrix for the meat product, wherein the blank reagent water, the glyceryl triacetate and the matrix without the target compound in the meat product are respectively weighed; the method is accurate in quantification, high in sensitivity and low in detection limit, and can be widely applied to efficient and sensitive detection of carbonyl compounds in meat products.

The invention provides a traditional Chinese medicine composition for treating kidney micro abdominal mass and damp toxin exuberance type membranous nephropathy as well as a preparation method and application of the traditional Chinese medicine composition. The invention provides a traditional Chinese medicine composition for treating kidney micro abdominal mass and damp toxin accumulation type membranous nephropathy. The traditional Chinese medicine composition comprises the following raw materials: rhizoma dioscoreae nipponicae, euonymus alatus and oldenlandia diffusa in a mass ratio of 1: 0.6: 0.6. The preparation method adopts a water decoction extraction process and specifically comprises the following steps of soaking and water decoction, during water decoction, the water adding amount is 10-12 times of the amount of all the raw materials, the decoction time is 1.5-2 h, and the decoction frequency is 2-3 times. The traditional Chinese medicine composition for treating kidney microabdominal mass and damp toxin accumulation type membranous nephropathy provided by the invention has the advantages that the kidney microabdominal mass and damp toxin accumulation type membranous nephropathy can be effectively treated; the traditional Chinese medicine composition prepared by adopting the preparation method provided by the invention has higher safety, higher paste yield and higher dioscin content.

This disclosure relates to the field of electrochemical detection technology, specifically a microfluidic electrochemical detection device, comprising a base, a channel plate, a filter device, a glass cover plate, and an electrode plate. The base includes an electrode groove. The channel plate is disposed on the base and includes an inlet channel, a reaction chamber, and an outlet channel that are interconnected. The reaction chamber has a first open end and a second open end. The inlet channel includes a first flow channel and a second flow channel, with the second flow channel communicating with the reaction chamber. The outlet channel has a drain port at its end near the reaction chamber. Along the axial direction of the outlet channel, and in the direction from the side away from the reaction chamber to the side near the reaction chamber, the cross-sectional area of ​​the drain port gradually increases. The filter device is embedded within the channel plate and located between the first and second flow channels. The glass cover plate is sealed to the first open end. The electrode plate is embedded within the electrode groove and sealed to the second open end. The detection device of this disclosure exhibits high detection accuracy and provides highly accurate detection results.