6results about How to "Linear stability" patented technology

The invention provides an anti-glycocholic acid antibody and application thereof, and particularly relates to more than ten positive monoclonal hybridoma cell strains obtained by adopting glycocholic acid antigen immune BALB / C mice and screening. Through performance determination, three cell strains capable of being specifically combined with glycocholic acid are finally obtained. Wherein the H15 antibody is high in titer, good in stability and stable in detection linearity, and can be used for clinical detection of glycocholic acid.

The invention discloses a method for detecting tert-butylamine residues in S-acetamidomethyl-L-cysteine-L-leucine tert-butyl ester, and mainly solves the problem that the existing method for detecting the tert-butylamine residues in the S-acetamidomethyl-L-cysteine-L-leucine tert-butyl ester comprises the following steps: 1, preparing a sample, 2, carrying out gas chromatography detection, and 3, detecting the tert-butylamine residues in the S-acetamidomethyl-L-cysteine-L-leucine tert-butyl ester. According to the method, a polyethylene glycol capillary chromatographic column is mainly utilized, a gas chromatograph hydrogen flame detector is combined, and the tert-butylamine residue in the S-acetamidomethyl-L-cysteine-L-leucine tert-butyl ester is calculated according to a standard curve method.According to the method, synchronous detection of a to-be-detected sample without interference is achieved, the measurement precision is high, the method is simple, rapid and good in repeatability, and the method is suitable for large-scale popularization and application of the tert-butylamine residue in the S-acetamidomethyl-L-cysteine-L-leucine tert-butyl ester. And a reliable and convenient detection means is provided for detecting the tert-butylamine residue in the S-acetamidomethyl-L-cysteine-L-leucine tert-butyl ester.

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 invention relates to a production process of a stainless steel wire for a high-strength digital precision spring, which comprises the following steps: S1, taking a stainless steel wire with a section diameter of 5.5 mm and a brand of SUS302 as a raw material; s2, soaking and cleaning the raw materials in hot water, performing surface membrane treatment, performing air blowing treatment at an outlet of a membrane tank, and performing circular drying in a drying oven; s3, the 5.5 mm raw material is drawn to 3.0 mm; s4, the stainless steel wire treated in the step S3 is subjected to solution annealing treatment; s5, the stainless steel wire obtained after solution annealing treatment is subjected to coating treatment, blowing treatment is conducted at an outlet of a coating groove, then circulating drying is conducted in a drying oven, and fine drawing is conducted to reach 1.5 mm from 3.0 mm; s6, the stainless steel wire treated in the step S5 is subjected to solution annealing treatment; s7, the stainless steel wire treated in the step S6 is subjected to online coating and drying; and S8, the stainless steel wire treated in the step S7 is subjected to finished product drawing. The prepared stainless steel wire is high in strength, consistent and stable in linearity and capable of replacing an imported spring wire in the market.

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.