3results about How to "Linear stability" patented technology

The invention relates to the technical field of food detection, in particular to a method for detecting the peroxide value in animal fat based on quantum dot fluorescence, which comprises the following steps: dissolving animal fat to be detected with an organic solvent to obtain a clear solution; the cadmium selenide quantum dot fluorescent probe with high quantum yield is prepared by heating and refluxing a sulfenyl compound, a cadmium source and a selenium source in a water phase according to a specific ratio. Mixing a quantitative probe and a hydrogen peroxide standard solution with known concentration in a buffer solution to form a gradient solution, measuring the initial fluorescence intensity under a specific excitation wavelength, and measuring the intensity after reaction after a preset temperature duration reaction; calculating the intensity difference value of each concentration point, drawing a standard curve fitting equation by taking the difference value as a longitudinal axis and the concentration as a transverse axis, and obtaining the peroxide value of the sample based on the equation. According to the method, rapid and accurate detection of the peroxide value of the animal fat is realized through water-phase synthesis of a high-activity probe and quantification of fluorescence intensity difference before and after reaction.

The application relates to a support structure for a cable tower closure section, which comprises: a bracket, comprising opposite first and second sides; the inner walls of two middle tower columns are respectively anchored with the brackets, and the second sides of the two brackets are parallel to each other; a vertical support structure, comprising vertical supports and bearing beams; the vertical supports are supported below the bottom formwork of the closure section; a horizontal support structure, comprising horizontal support members and wedge-shaped members; the horizontal support members comprise first plate bodies, second plate bodies and support rods; the support rods are respectively connected with the first plate bodies and the second plate bodies; the first plate bodies comprise first surfaces away from the support rods, and the second plate bodies comprise second surfaces away from the support rods; the first surfaces are parallel to the second sides of the brackets and abut against the second sides; the second surfaces are inclined relative to the first surfaces, and the wedge-shaped members are inserted between the second plate bodies and the brackets. The utility model can provide vertical and horizontal supports for the closure section and the middle tower columns, and has the advantages of simple structure and low cost.