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107results about How to "Improve quality control standards" patented technology

Method for detecting quality of mulberry and chrysanthemum lonicera and forsythia powder

The invention relates to a method for detecting quality of mulberry and chrysanthemum lonicera and forsythia powder according to standards described in volume XI of Medicament Standard of Ministry of Health of the People's Republic of China (Chinese medicinal set prescription preparation), which comprises a microscopic identification method of chrysanthemum, lonicera confuse and great burdock achene, a thin-layer chromatography identification method of forsythia, a thin-layer chromatography identification method of liquoric root and a content measuring method of arctigenin in medicaments. The quality detection method of the mulberry and chrysanthemum lonicera and forsythia powder improves the quality control standard of the mulberry and chrysanthemum lonicera and forsythia powder, establishes content measuring indexes in the preparation and a detection method thereof, improves the thin-layer chromatography identification method of the forsythia and the liquoric root by making the thin-layer chromatography identification method of the forsythia and the liquoric root more specific and accurate, increases microscopic characteristics of the chrysanthemum and the great burdock achene, revises the microscopic characteristic of the lonicera confuse to make the description of the lonicera confuse more standard and accurate, and ensures the high quality standard level of the compound preparation.
Owner:KUNMING CHINESE MEDICINE FACTORY

Bone-strengthening drug quality detection method

The invention discloses a bone-strengthening drug quality detection method, and belongs to the drug quality detection technical field. The adopted technical scheme comprises that the bone-strengthening drug is made into capsules by an artificial tiger bone powder and auxiliary materials, and the quality detection method includes the following determining steps: 1) after the bone-strengthening drug is hydrolyzed, determining the content of total amino acids in the samples, wherein each capsule contains not less than 65 mg of the total amino acids; and 2) determining the content of total calcium in the bone-strengthening drug by adopting atomic absorption spectrophotometry, wherein each capsule contains not less than 55 mg of calcium. The determination method for determining the content of the total amino acids in the preparation by adopting microwave hydrolysis and automatic online derivation, using a full-automatic amino acid analyzer or adopting traditional hydrolysis and PITC derivation method and using high performance liquid chromatography is established, the determination method for determining the content of calcium in the samples by adopting the atomic absorption spectrophotometry is increased, the accuracy and advancement of the quality detection method is ensured, and the product quality of Jintiange capsules can be effectively controlled.
Owner:XIAN DAQING PHARMA FACTORY JINHUA ENTERPRISE GROUP CORP

Building method and mass detection method for fingerprint of total alkaloid components of cortex mori radicis medicinal material or cortex mori radicis extract

The invention provides a building method and a mass detection method for a fingerprint of the total alkaloid components of a cortex mori radicis medicinal material or a cortex mori radicis extract. The building method comprises the following steps of: (1) preparing a cortex mori radicis medicinal material solution or a cortex mori radicis extract solution; and (b) using a high performance liquid chromatography to detect either the fingerprint of the total alkaloid components of the cortex mori radicis medicinal material or the fingerprint of the total alkaloid components of the cortex mori radicis extract. Either the fingerprint of the total alkaloid components of the cortex mori radicis medicinal material or the fingerprint of the total alkaloid components of the cortex mori radicis extract is obtained by the building process, thereby comprehensively reflecting the total alkaloid active components in the cortex mori radicis medicinal material. Therefore, the mass control standards of the cortex mori radicis medicinal material and the cortex mori radicis extract are improved, and the building method of the fingerprint provided by the invention has the advantages of good stability and good reproducibility. The mass problem of the existing cortex mori radicis medicinal material can be accurately adjusted in the market by comparing with the fingerprints.
Owner:BEIJING WBL PEKING UNIV BIOTECH

Method for detecting contents of baicalin, forsythin, indirubin and glycyrrhizic acid in Qingreling granules

The invention discloses a method for detecting contents of baicalin, forsythin, indirubin and glycyrrhizic acid in Qingreling granules. The method comprises the following steps: pretreating the Qingreling granules to prepare a sample to be detected, and injecting the sample to be detected to a high performance liquid chromatograph for detecting to obtain a high performance liquid chromatogram of the sample to be detected; and calculating the contents of the baicalin, the forsythin, the indirubin and the glycyrrhizic acid in the sample to be detected according to the peak areas of corresponding absorption peaks in the high performance liquid chromatogram of the sample to be detected and a standard curve of each standard sample. The method disclosed by the invention can be used for measuring the components of the baicalin under the content determination items of the Qingreling granules in the first part of Pharmacopoeia of the People's Republic of China published in 2010, and also can be used for additionally measuring the content of the forsythin in fructus forsythiae, the content of the indirubin in folium isatidis and the content of the glycyrrhizic acid in liquorice and greatly improving the quality control standard of the Qingreling granules. Proved through content measurement methodology, the method completely conforms to the specification and is an advanced quality control method. The method can be used for shortening the detection time and reducing the detection cost.
Owner:CHIATAI QINGCHUNBAO PHARMA

Parametric modeling method and system for steel structure bridge model based on BIM technology

The invention discloses a parametric modeling method and system for a steel structure bridge model based on BIM technology. The parametric modeling method for the steel structure bridge model based onthe BIM technology comprises the following steps: setting a constraint variable and checking the data format through an interaction mode with the relative auxiliary line of a part to be modeled as the reference line; calculating the geometric form of the reference line and the edge of the part to be modeled, and confirming the relative constrained position size of a polygon and an arc; deleting unnecessary auxiliary lines; automatically drawing the part model required for the part to be modeled, and completing the parametric drawing of the part model; and setting the relevant properties of the part model. The parametric modeling method for the steel structure bridge model based on the BIM technology provided by the application can be used to develop a parametric design software for the steel bridge model in the field of deepening detailed drawings of steel structure bridges; and the refined parametric drawings method is adopted, the original drawing thinking is improved, the efficientdesign algorithm and interactive management and control mode are used, therefore, and the project design and manufacturing cycle is shortened.
Owner:CHINA RAILWAY SHANQIAO GRP CO LTD

Method for detecting salvia heart-soothing capsules

The invention provides a method for detecting the quality of salvia heart-soothing capsules. The method comprises all or partial items of character detection, identification, inspection and content measurement, wherein the character is capsules which are filled with dark brown powder, and have mild and subastringent taste; the identification means to use salvia contrast medicament as contrast, and a thin-layer chromatography method is adopted for salvia qualitative identification; the inspection needs to accord with regulations related to capsule item in the appendix IL of Chinese pharmacopoeia 2010 (vol.1); and the content measurement is to detect the content of main components tanshinone IIA and salvianolic acid B of the capsules by adopting high-efficiency liquid chromatography method. The quality detecting method has the advantages of strong specificity, high accuracy, good stability, good reproducibility, high reclamation rate, accurate measurement and simpleness and convenience, measures the contents of water-soluble ingredients and ethanol soluble ingredients of the capsules, improves the quality control standard of the salvia heart-soothing capsules, and can effectively control fake salvia heart-soothing capsule production of illegal manufacturers or manufacturers with low level of process control technology so as to ensure the clinical curative effect of the preparation.
Owner:SICHUAN FENGCHUN PHARMA

Fingerprint spectrum determination method of ligusticum wallichii tea-blending granular preparation

The invention relates to a fingerprint spectrum determination method of a ligusticum wallichii tea-blending granular preparation, which comprises the following steps: (a) preparing ligusticum wallichii tea-blending preparation test sample: precisely weighing a proper quantity of ligusticum wallichii tea-blending preparation, adding a solvent for reflux extraction, centrifuging the extracting solution, evaporating and drying supernate, dissolving with water, extracting with n-butyl alcohol, collecting n-butyl alcohol extracting solution, evaporating and drying, dissolving with 70% methyl alcohol, and filtering by using a microfiltration membrane to obtain the test sample; (b) chromatograph condition: with octadecylsilane bonding silica gel as the chromatograph column of filler, carrying out gradient elution, wherein a flowing phase A is acetonitrile, the flowing phase B is 0.01-0.2% formic acid aqueous solution, and the detection wavelength is 230-280nm; and (c) determination: precisely adsorbing test sample solution, introducing in a liquid chromatograph, recording the chromatogram to finally obtain the characteristic fingerprint spectrum of the ligusticum wallichii tea-blending preparation. The HPLC (High Performance Liquid Chromatography) characteristic fingerprint spectrum analysis method for ligusticum wallichii tea-blending preparations, such as the granular preparation, is simple to operate, has the advantages of high precision and repeatability, and is suitable for controlling the quality of the ligusticum wallichii tea-blending preparations, such as the granular preparation.
Owner:GUIZHOU WARMEN PHARMA
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