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284 results about "Thin-layer chromatography" patented technology

Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures. Thin-layer chromatography is performed on a sheet of glass, plastic, or aluminium foil, which is coated with a thin layer of adsorbent material, usually silica gel, aluminium oxide (alumina), or cellulose. This layer of adsorbent is known as the stationary phase.

Tea oil adulteration detection method based on thin-layer chromatography and image analysis

The invention discloses a tea oil adulteration detection method based on thin-layer chromatography and image analysis, and belongs to the technical field of tea oil adulteration detection.The tea oil adulteration detection method comprises the steps that firstly, tea oil with different adulteration concentrations is analyzed based on thin-layer chromatography, oil sample images are obtained, and therefore an image recognition database is established; the adulterated tea oil lipid and lipid adjunct with different concentrations have different color development positions under the action of the composite organic solvent, so that the adulterated tea oil machine identification model is constructed by taking different color development positions as characteristic indexes. And identifying a thin-layer chromatogram of a to-be-detected oil sample by adopting the tea oil machine identification model, and judging the adulteration condition of the tea oil according to an identification result. According to the method, the thin-layer chromatography analysis and the machine algorithm are combined, and the thin-layer chromatogram of the sample to be detected is identified and distinguished by utilizing the machine algorithm, so that the tea oil adulteration result and adulteration concentration can be obtained, and the method is simple, convenient and rapid to operate and easy to popularize and promote.
Owner:JIUJIANG UNIV

Substance-based quality detection method for Xiaohuang powder

The invention discloses a substance-based quality detection method for Xiaohuang powder, and belongs to the technical field of quality detection of traditional Chinese medicines. According to the method, standard control of a classic famous prescription is realized by constructing a multi-dimensional quality control system. The method comprises the following steps: firstly, carrying out specific identification on gardenia, divaricate saposhnikovia root, liquorice and pogostemon cablin in the prescription by adopting a thin-layer chromatography; meanwhile, a multi-index component content determination method is established, and the contents of five components including geniposide, cimicifugin, 5-O-methylvisammioside, liquiritin and glycyrrhizic acid are synchronously determined by applying a high performance liquid chromatography (HPLC). Through a system quality control strategy combining qualitative identification and quantitative analysis, not only is a quality standard system of the substance reference of the Xiaohuang powder perfected, but also reliable technical guarantee is provided for ensuring the stability and consistency of product quality. The establishment of the method establishes a standardized method system for the substance-based quality control of the classical famous prescription Xiaohuang powder.
Owner:SHAANXI UNIV OF SCI & TECH

Synthesis method of novel benzosuberone compound

The invention discloses a synthesis method of a novel benzosuberone compound, and belongs to the field of organic synthesis. The preparation method comprises the following steps: uniformly stirring methyltriphenylphosphonium bromide in a solvent at room temperature, dropwise adding an n-hexane solution of n-butyllithium in an ice-water bath, stirring a reaction system at room temperature for 30-40 minutes after dropwise adding is completed, then adding an initial raw material phenanthrenequinone 1 in the ice-water bath, transferring the reaction system to 40 DEG C for reaction, and after the reaction is monitored to be complete by a TLC (Thin Layer Chromatography) dot plate, filtering, washing and drying to obtain the phenanthrenequinone 1. And pouring the reaction liquid into a silica gel chromatographic column, and simply filtering by using dichloromethane as an eluent to remove salt and phosphine oxide. And performing rotary evaporation to remove the organic solvent to obtain a crude product, and separating and purifying to obtain a target product 2. The method is short in reaction time and low in reaction cost, provides a practical method for obtaining the seven-membered rigid ring skeleton, and has potential value for synthesis of natural products and bioactive molecules.
Owner:UNIV OF SCI & TECH OF CHINA

Quality control method of heart-fire-clearing lotus seed beverage compound preparation

The invention relates to the technical field of traditional Chinese medicine detection, in particular to a quality control method of a heart fire clearing lotus seed beverage compound preparation, which comprises the following steps: respectively preparing test solution A-E; based on the test solution A, identifying the scutellaria baicalensis by adopting a thin-layer chromatography; identifying cortex lycii radicis and liquorice based on the test solution B, identifying ginseng based on the test solution C, identifying semen plantaginis based on the test solution D, and identifying lotus seeds based on the test solution E. According to the method, repeated extraction of the reference sample during identification of different medicine flavors can be reduced, and the method has the advantages of clear spots, good separation degree, strong specificity, no background interference and good durability.
Owner:SHENZHEN TRADITIONAL CHINESE MEDICINE MFG INNOVATION CENT CO LTD

Method for preparing biological hydrocarbon compound through organic photocatalysis higher fatty acid decarboxylation

The invention discloses a method for preparing a biological hydrocarbon compound by organic photocatalysis higher fatty acid decarboxylation, which comprises the following steps: adding higher fatty acid, a hydrogen atom transfer catalyst and an acridine photocatalyst / solid-phase acridine photocatalyst into a reaction solvent, stirring and reacting for 12-24 hours under the conditions of blue light irradiation and room temperature to obtain a reaction solution, filtering, washing and drying to obtain the biological hydrocarbon compound. And removing the reaction solvent of the obtained reaction solution under reduced pressure, and purifying by thin layer chromatography / column chromatography to obtain the long-chain alkane compound after decarboxylation of the higher fatty acid. The method is simple in step, mild in reaction condition and high in product yield, does not use any metal compound, and has the characteristics of high atom economy and environmental protection. And for unsaturated carboxylic acid, olefin configuration before and after decarboxylation is not influenced. When solid-phase acridine is used as a photocatalyst for reaction, the catalyst can be recycled through simple washing, filtering and recycling, excellent catalytic activity can still be kept after the catalyst is recycled for more than 10 times, and the reaction cost is further reduced.
Owner:NANJING TECH UNIV

Method for synthesizing 3, 3 ', 5, 5'-tetramethyl-4, 4 '-dihydroxybiphenyl and derivatives thereof

The invention discloses a method for synthesizing 3, 3 '-difluorobenzene. The invention discloses a method for preparing 3, 3 ', 5, 5'-tetramethyl-4, 4 '-dihydroxybiphenyl and derivatives thereof, which comprises the following steps of: adding 1.0 mmol of 4-halogenated aryl phenol compound, 0.05 mmol of photocatalyst and a solvent into a reaction container in a nitrogen atmosphere, stirring until the materials are dissolved, adding 0.05 mmol of metal catalyst and 0.06 mmol of ligand which are prepared in advance, turning on a light source, stirring for 24 hours at room temperature, performing thin layer chromatography detection reaction, filtering, washing and drying to obtain the 3, 3', 5, 5 '-tetramethyl-4, 4'-dihydroxybiphenyl and derivatives thereof. And after the reaction is finished, filtering the reaction liquid, removing the solvent through rotary evaporation, and carrying out recrystallization or column chromatography by using a mixed solvent to obtain the target product 3, 3 ', 5, 5'-tetramethyl-4, 4 '-dihydroxybiphenyl and the derivative thereof. According to the method, the 4-halogenated aryl phenol compound is used as a raw material, the required compound is obtained in one step through'nickel + light 'catalysis, and waste and related pollution caused by the use of high-explosive gas or a reducing agent are not needed; and a recyclable photocatalyst is used, so that the method is more environment-friendly and has a good industrial application prospect.
Owner:HUNAN JIASHENGDE MATERIALS TECH CO LTD

Shuanghuangbai traditional Chinese medicine preparation for treating myelosuppression and preparation method and detection method of Shuanghuangbai traditional Chinese medicine preparation

The invention discloses a radix astragali, rhizoma polygonati and ligustrum lucidum ait traditional Chinese medicine preparation for treating myelosuppression as well as a preparation method and a detection method thereof. The preparation is prepared from 50-150 parts of radix astragali, 50-150 parts of wine-processed rhizoma polygonati, 25-75 parts of wine-processed ligustrum lucidum ait, 50-150 parts of blanched rhizoma drynariae, 50-150 parts of radix trichosanthis and 25-75 parts of herba epimedii. The optimal extraction process and refining process are screened out based on effective components and pharmacological activity through a large number of tests, and the optimal preparation process of the Shuanghuangliangwhitening oral liquid and other traditional Chinese medicine preparations is obtained through stability investigation and verification. According to the invention, a thin layer chromatography is adopted, the four medicinal materials of astragalus membranaceus, glossy privet fruit, rhizoma drynariae and herba epimedii are respectively subjected to thin layer chromatography research, and methodology research shows that the method is stable and feasible. The invention establishes a content determination method for astragaloside, calycosin-7-glucoside, specnuezhenide and icariin, establishes a quality standard, and has important significance for ensuring the clinical curative effect and safety of astragaloside, calycosin-7-glucoside, specnuezhenide and icariin.
Owner:CHANGSHU LEI YUN SHANG PHARM CO LTD

Thin-layer chromatography identification method for vigor-preserving decoction and preparation of vigor-preserving decoction

The invention relates to the technical field of pharmaceutical analysis, in particular to a thin-layer chromatography identification method of vitality-preserving decoction and a preparation thereof. Comprising the following steps: S1, extracting a sample to be detected by using diethyl ether, and preparing a test solution; s2, preparing a cinnamaldehyde reference substance solution and a 6-gingerol reference substance solution; the method further comprises at least one of the steps S3 and S4; s3, dripping the test solution and the cinnamaldehyde reference solution on the same thin-layer plate, developing with a first developing solvent, and identifying the cinnamon; the first developing solvent comprises petroleum ether and ethyl acetate in a volume ratio of (15-20): 3; s4, dripping the test solution and the 6-gingerol reference substance solution on the same thin-layer plate, developing with a second developing solvent, and identifying the ginger; the second developing solvent is prepared from petroleum ether, trichloromethane and ethyl acetate according to the volume ratio of (2-4): (1-2): (1-3). The method is good in overall separation effect, clear in spots, good in specificity and durability, and capable of identifying the medicine flavors of cinnamon and ginger in the vitality-preserving decoction and the preparation thereof.
Owner:SHENZHEN TRADITIONAL CHINESE MEDICINE MFG INNOVATION CENT CO LTD +1

Thin layer chromatography detection method for free fluorine-18 in fluorine-18 labeled radiopharmaceutical

The invention relates to the technical field of thin-layer chromatography detection, and discloses a thin-layer chromatography detection method for free fluorine-18 in a fluorine-18 labeled radiopharmaceutical, which adopts ethyl acetate and n-hexane as developing solvents, and the volume ratio of ethyl acetate to n-hexane is (50-90): (10-50). The developing solvent with a specific volume ratio is adopted, and the two key indexes that the Rf value of the marked active ingredient in the radiopharmaceutical is smaller than 0.8 and the separation degree (the separation degree of the marked active ingredient in the radiopharmaceutical and free fluorine-18) R is larger than 1 are considered.
Owner:GUOTONG (CHENGDU) NEW DRUG TECH CO LTD

Method for detecting detergent main agent in gasoline

The invention relates to a method for detecting a clearing agent main agent in gasoline, and the method comprises the following steps: carrying out thin-layer chromatography detection on a to-be-detected sample, and determining the composition of the clearing agent main agent in the concentrated to-be-detected sample according to color spot distribution on an obtained thin-layer chromatography plate, wherein the clearing agent main agent comprises one or more of a polyether amine clearing agent, a polyisobutene amine clearing agent and a Mannich base clearing agent; the thin-layer chromatography detection sequentially comprises developing and developing treatment; a developing agent for developing comprises one or more of a developing agent I, a developing agent II and a developing agent III; the developing solvent I is methanol, and the developing solvent II and the developing solvent III comprise one or more of alcohol with the carbon atom number of 1-6, aliphatic hydrocarbon with the carbon atom number of 5-12 and cycloalkane with the carbon atom number of 5-12. According to the method provided by the invention, whether the clearing agent main agent is added into the sample to be detected or not can be rapidly determined, and the type of the clearing agent main agent can be rapidly and accurately detected.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Thin-layer chromatography method for simultaneous identification of multiple components in refined Pantao pills and its application

The present invention discloses a thin layer chromatography identification method for simultaneously identifying multiple components in a refined flat peach pill preparation and its application, which belongs to the technical field of quality control of traditional Chinese medicine. The thin layer chromatography identification method of the present invention is divided into two parts. The first part adopts methanol ultrasonic extraction and is developed by toluene-ethyl acetate-formic acid-methanol system, which can simultaneously identify the alpinia oxyphylla, wolfberry and fenxinmu in the refined flat peach pill; the second part is based on the methanol ultrasonic extraction, and hydrochloric acid is added to heat and reflux extraction, shaken and evaporated, and then ethanol is redissolved and developed by petroleum ether-ethyl acetate system, which can identify the ophiopogon in the refined flat peach pill. That is, only two sample preparation methods are required, and one thin layer plate can simply, quickly and effectively identify the four medicinal materials in the refined flat peach pill, and the color spots are clear, without tailing, without cross-linking and good specificity.
Owner:XIYUAN HOSPITAL OF CHINA ACAD OF CHINESE MEDICAL SCI

A method for detecting the quality of radix eupatorii chinensis granules

The present application provides a kind of Echinops formula granule quality detection method, including the thin layer identification of Echinops formula granule, characteristic map construction and β-ecdysterone content determination, the content standard of formula granule is limited to every 1g contains β-ecdysterone 3.5~14.4mg, thin layer identification is identified using thin layer chromatography, characteristic map construction and β-ecdysterone content determination are all using liquid chromatography method.The quality detection method of Echinops formula granule of the present application, by the detection of thin layer identification, characteristic map construction and β-ecdysterone content determination to assess the quality of Echinops formula granule, can comprehensively reflect the inherent quality of formula granule and better control the quality of Echinops formula granule.
Owner:长沙新林制药有限公司 +1

Radionuclide 18 Method for detecting radiochemical purity of F-labelled FAPI compounds

The application discloses a kind of radionuclide 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds 18 The present application discloses a method for detecting the radiochemical purity of F-labeled FAPI compounds, which comprises using thin layer chromatography to detect the radiochemical purity of F-labeled FAPI compounds
Owner:CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER

Thin-layer chromatography separation method and detection method for amino polyether and matrix in fluorine-18 labeled radiopharmaceutical

The invention relates to the technical field of thin-layer chromatography detection, and discloses a thin-layer chromatography separation method for amino polyether and a matrix in a fluorine-18 labeled radiopharmaceutical, and the adopted developing solvent is acetonitrile and ammonia water, and the volume ratio of the acetonitrile to the ammonia water is 90: 10-85: 15. According to the method, amino polyether and matrix components are separated by adopting a developing solvent with a specific volume ratio, and particularly, sodium ascorbate in the amino polyether and the matrix is separated.
Owner:GUOTONG (CHENGDU) NEW DRUG TECH CO LTD

Longan leaf granules and quality control method thereof

The invention discloses a longan leaf granule which is prepared by the following steps: adding water into longan leaves, heating, extracting, filtering, concentrating, drying, crushing to obtain dry paste powder, adding a diluent into the dry paste powder, uniformly mixing, adding a wetting agent, granulating, and drying to obtain the longan leaf granule. The forming rate, the dissolution rate, the moisture absorption rate, the fluidity and the like of the granules all meet the requirements, and the granules are good in stability, suitable for industrial batch production, capable of treating diabetes, capable of meeting the requirements of doctors for treatment based on syndrome differentiation and increase and decrease along with symptoms and convenient to carry and take by patients. Thin-layer chromatography is adopted for qualitative identification of the longan leaf granules, high performance liquid chromatography is adopted for content determination of quercetin, quercitrin and kaempferol in the longan leaf granules, operation is easy, convenient and accurate, repeatability is good, and a scientific basis is provided for quality evaluation and control of the longan leaf granules.
Owner:GUANGXI UNIV OF CHINESE MEDICINE

Stasis-removing and pain-relieving pill and quality detection method thereof

The invention belongs to the technical field of traditional Chinese medicines, and particularly relates to stasis-removing and pain-relieving pills and a quality detection method thereof. The stasis-removing and pain-relieving pill is prepared by taking radix paeoniae alba, rhizoma corydalis, radix paeoniae rubra, angelica sinensis, ligusticum wallichii, rhizoma cyperi, rhizoma zingiberis, fennel and astragalus membranaceus as raw materials and taking 10% starch slurry as an adhesive. The quality detection method of the stasis-removing and pain-relieving pill comprises general inspection, microscopic identification and thin-layer chromatography identification. And high performance liquid chromatography content determination. According to the present invention, by researching the preparation process and the quality standard of the stasis removing and pain relieving pill, the new thought and the new method are provided for the development of the traditional Chinese medicine preparation, the excellent choice is hopefully provided for the common gynecologic symptoms such as irregular menstruation, dysmenorrhea, postpartum blood stasis abdominal pain and the like, and the pain caused by the illness is relieved.
Owner:HEILONGJIANG UNIV OF CHINESE MEDICINE

Aminobenzaldehyde-based coumarin fluorescent probe for preparing mercaptosuccinic acid detection reagent and preparation method thereof

The invention belongs to the field of chemical analysis and testing, and particularly relates to an aminobenzaldehyde-based coumarin fluorescent probe for preparing a reagent for detecting mercaptosuccinic acid and a preparation method of the aminobenzaldehyde-based coumarin fluorescent probe. The preparation method comprises the following steps: dissolving 2-aminobenzaldehyde and 7-(diethylamino) coumarin-3-formic acid in dichloromethane, adding 1-ethyl-(3-dimethylamino aldehyde) carbodiimide hydrochloride (EDCI) and 1-hydroxybenzotriazole (HBOT) as condensing agents, carrying out a stirring reaction at room temperature, carrying out separation and purification on the obtained crude product through a thin-layer chromatography, and carrying out recrystallization to obtain the coumarin derivative. The final yellow product, namely the aminobenzaldehyde-based coumarin fluorescent probe Y-SH, is obtained. The coumarin fluorescent probe prepared by the preparation method disclosed by the invention can be used for rapidly detecting mercaptosuccinic acid in deionized water.
Owner:CHANGZHOU UNIV

Qualitative identification method of water-soluble components of safflower

The present application belongs to the technical field of traditional Chinese medicine component detection, and particularly relates to a qualitative identification method of water-soluble components of safflower. The qualitative identification method of water-soluble components of safflower provided by the present application adopts water as an extraction solvent, extracts water-soluble components in safflower, and then adopts a thin layer chromatography method for identification, effectively solves the technical problem that safflower cannot be effectively detected after being boiled in water in the prior art, and is suitable for the inspection of classical famous prescription preparations containing safflower.
Owner:SINOPHARM GUANGDONG GLOBAL PHARMA CO LTD

Fluorescent probe for preparing reagent for detecting elastase as well as synthesis method and application of fluorescent probe

The invention belongs to the field of chemical analysis and testing, and particularly relates to a fluorescent probe for preparing a reagent for detecting elastase as well as a synthesis method and application of the fluorescent probe. The preparation method comprises the following steps: dissolving 2-dicyanomethylene-3-cyano-4, 5, 5-trimethyl-2, 5-dihydrofuran and 6-aminopyridine-3-formaldehyde in ethanol, and heating and refluxing a reaction solution at 50 DEG C under the acidic condition of ammonium acetate to obtain an intermediate TCF-N-NH2; and dissolving the intermediate TCF-N-NH2 and pentafluoropropionic anhydride in dichloromethane, stirring the reaction solution at the temperature of 0 DEG C to room temperature under the alkaline condition of pyridine, and separating and purifying the obtained crude product through thin layer chromatography to obtain the final orange product TCF-NF. The fluorescent probe obtained by the invention can quickly recognize elastase in deionized water.
Owner:CHANGZHOU UNIV

Detection method of infantile cough syrup

The invention belongs to the technical field of medicines, and particularly relates to an infantile cough relieving syrup detection method which comprises the following steps: identifying radix peucedani, platycodon grandiflorum, pericarpium citri reticulatae and cortex mori radicis in infantile cough relieving syrup by adopting a thin layer chromatography; and simultaneously detecting the fructus arctii and the radix scutellariae by adopting a high performance liquid chromatography. The detection method for the infantile cough relieving syrup has the advantages of being rapid in analysis, easy to operate, high in accuracy, wide in adaptability and the like, and establishment and overall evaluation of the quality standard of the infantile cough relieving syrup are facilitated.
Owner:CHENGDU BETTER DENUO PHARM CO LTD

Quality control method for stir-fried rhizoma atractylodis macrocephalae with fructus aurantii

PendingCN120369876AComponent separationNaringinAtractylenolide II
The invention belongs to the technical field of quality detection of traditional Chinese medicines, and discloses a quality detection method of rhizoma atractylodis macrocephalae fried with fructus aurantii, which is characterized by comprising the following steps: performing qualitative analysis on rhizoma atractylodis macrocephalae fried with fructus aurantii by respectively adopting a thin-layer chromatography and an HPLC (High Performance Liquid Chromatography) characteristic chromatogram; a high performance liquid phase external standard curve method is adopted to carry out quantitative analysis on atractylenolide I, atractylenolide II, atractylenolide III, naringin and neohesperidin in the fructus aurantii fried bighead atractylodes rhizome. The invention establishes a thin-layer identification method for rhizoma atractylodis macrocephalae and fructus aurantii in a fructus aurantii fried rhizoma atractylodis macrocephalae processed product; according to the method for establishing the fingerprint spectrum, the similarity of 10 batches of rhizoma atractylodis macrocephalae fried with fructus aurantii ranges from 0.991 to 1.000; the method for determining the content of atractylenolide I, atractylenolide II, atractylenolide III, naringin and neohesperidin is established, scientific support is provided for formulating the quality standard of the characteristic processing decoction pieces of the temporary prescription, and effective guarantee is provided for clinical application of the decoction pieces.
Owner:CHANGZHOU FOOD DRUG & FIBER QUALITY SUPERVISION & INSPECTION CENT (CHANGZHOU GRAIN & OIL QUALITY SUPERVISION & INSPECTION STATION CHANGZHOU FIBER INSPECTION INST)

Discrimination method of Xiaoer Runtong syrup by multi-component thin layer chromatography

PendingCN122330345ABiotechnologyMedicinal herbs
This invention belongs to the field of traditional Chinese medicine detection technology, specifically relating to a multi-component thin-layer chromatography (TLC) identification method for pediatric runtong syrup. This invention establishes specific TLC identification processes for roasted radish seed, immature bitter orange, hemp seed, and scrophularia root, optimizing the sample pretreatment, developing solvent ratio, spotting volume, and colorimetric inspection conditions for each component. After specificity and robustness studies, the method demonstrates good stability under varying temperature, humidity, TLC plate type, and spotting volume ranges, exhibiting no negative interference and clear spots, enabling accurate multi-component identification. This invention is the first to establish a TLC identification method for these four medicinal materials in pediatric runtong syrup, providing a scientific and reliable technical means for the quality control of this compound preparation and filling a gap in existing technology.
Owner:YUSEN (FOSHAN) NEW DRUG RESEARCH & DEVELOPMENT CO LTD

Thin layer chromatography identification method of Amomum villosum formula granules

The present invention provides a thin-layer chromatography (TLC) identification method for Amomum villosum formula granules, comprising the steps of preparing a test solution, preparing a control medicinal material solution, and performing TLC identification. The test solution and the control medicinal material solution are prepared using a simple and rapid preparation method, and are spotted on the same TLC plate. After development, the TLC plate is inspected under ultraviolet light to obtain a multi-information TLC of the Amomum villosum formula granules. This method uses the control medicinal material as a reference and flavonoids as the main identification component. It has high specificity and can distinguish Amomum villosum of different origins (Amomum villosum and Amomum villosum var. amomi) and identify mixed and counterfeit Amomum villosum (Amomum villosum var. longifolia).
Owner:JIANGYIN TIANJIANG PHARMA

Flavonoid enantiomer compound extracted from Epimedium sagittatum and its preparation method and application

The invention discloses a flavonoid enantiomer compound extracted from Epimedium sagittatum and its preparation method and application. The preparation method comprises the following steps: crushing Epimedium sagittatum to prepare a paste, suspending the paste with water, extracting the paste with petroleum ether, dichloromethane, ethyl acetate and n-butanol respectively to obtain extracts of each part, performing gradient elution separation by silica gel column chromatography, combining similar parts according to the color development results of thin layer chromatography (TLC) to obtain multiple polar segments; chromatographing the target polar segment and performing gradient elution to obtain multiple components, and then combining similar components by thin layer chromatography (TLC) spot plate absorption to obtain multiple sub-components; eluting and purifying the target sub-components, collecting fractions with different retention times, and drying to obtain four compounds respectively. The four compounds have a significant inhibitory effect on the cell viability of human breast cancer MCF-7 cells and have anti-breast cancer activity. The four compounds can be used in the preparation of drugs for treating breast cancer, with huge social and economic benefits.
Owner:HENAN UNIV OF CHINESE MEDICINE

Diterpenoid alkaloid compounds in Delphinium aemulans and preparation method and use thereof

The present invention relates to diterpenoid alkaloid compounds in Delphinium aemulans Nevski var. aemulans and a preparation method and use thereof. The compounds use Delphinium aemulans Nevski var. aemulans as a raw material, are extracted with a solvent, treated with acid and base, subjected to solvent extraction, and separated by two, three or four of silica gel column chromatography, Sephadex LH-20 column chromatography, preparative thin layer chromatography or high performance liquid chromatography, and detected and analyzed by thin layer chromatography or high performance liquid chromatography to obtain two new compounds: Compound 1 named aemulanosine A; Compound 2 named aemulanosine B. The voltage-gated potassium channel activities of the two compounds were measured. The experimental results show that aemulanosine A and aemulanosine B isolated from Delphinium aemulans Nevski var. aemulans show inhibitory effects on voltage-gated potassium channel currents and can be used for the preparation of drugs with the activity of inhibiting voltage-gated potassium channel currents.
Owner:XINJIANG TECH INST OF PHYSICS & CHEM CHINESE ACAD OF SCI

Method for simultaneously and rapidly detecting four phenylethanoid glycosides in cistanche

The invention relates to the technical field of cistanche deserticola detection, in particular to a method for simultaneously and rapidly detecting four phenylethanoid glycosides in cistanche deserticola, which comprises the following steps: preparing a plurality of parts of mixed reference substance solutions containing four phenylethanoid glycosides with known concentrations; preparing a to-be-detected cistanche sample into a test solution; spotting the mixed reference substance solution and the test solution on the same thin-layer plate, carrying out thin-layer chromatography development by adopting a developing solvent, and volatilizing the solvent; placing the thin-layer plate after the solvent is volatilized under ultraviolet light to collect spot images, and processing the images by adopting image analysis software to obtain integral gray values of all phenylethanoid glycoside spots; respectively drawing a standard curve by taking the known concentrations of the four phenylethanoid glycosides in each mixed reference substance solution as horizontal coordinates and the corresponding integral gray values as vertical coordinates, establishing a linear regression equation, and calculating the contents of the four phenylethanoid glycosides in the cistanche deserticola sample to be detected; the invention provides a rapid and accurate method for determining the content of four phenylethanoid glycosides in cistanche.
Owner:YAMAN LTD

Quality detection method of compound phyllanthus emblica ginseng schisandra preparation

The application discloses a quality detection method for a compound phyllium panax schisandra preparation, and belongs to the technical field of drug detection and analysis. The traditional Chinese medicine is composed of phyllium, panax and schisandra. Qualitative analysis is conducted on the phyllium, panax and schisandra in the compound by using a thin layer chromatography method; and the contents of gallic acid, ginsenoside Rg1 and schisandrin A in the compound are determined by using a high performance liquid chromatography method. The thin layer chromatography method is one of classical traditional Chinese medicine analysis methods, and has the advantages of rapidness, convenience and the like; the high performance liquid chromatography method is also one of classical traditional Chinese medicine analysis methods, and has the advantages of mature technology, good stability, high universality and the like, can be used for widely and accurately detecting chemical components in a complex traditional Chinese medicine compound, the content determination method passes the method validation, has good linear relationship, and the precision, stability, repeatability and recovery rate meet the regulations, and the combination of qualitative analysis and quantitative analysis lays a foundation for establishing the quality standard of the compound preparation.
Owner:SHIJIAZHUANG ZANGNUO BIOTECH

Heart-protecting granule identification and quality control method based on thin layer chromatography

The invention discloses a heart-protecting granule identification and quality control method based on thin layer chromatography, and belongs to the technical field of medicine detection. The thin-layer chromatography identification method comprises the following steps: identifying astragalus membranaceus by taking astragaloside as a reference substance, identifying wine-treated rhubarb by taking chrysophanol and emodin as reference substances, identifying leech by taking a leech medicinal material as a reference substance, identifying liquorice by taking liquiritin and a liquorice medicinal material as reference substances, and identifying radix rehmanniae by taking catalpol as a reference substance. And identifying salvia miltiorrhiza by taking salvianolic acid B and salvia miltiorrhiza medicinal materials as reference substances, and identifying fructus aurantii by taking naringin and neohesperidin as reference substances. By establishing the thin-layer chromatography identification method of the heart-protecting granules, an exclusive developing solvent and a developing mode are adopted, accurate identification is achieved according to the characteristics of spot colors, fluorescence characteristics and the like of corresponding positions of a test substance chromatography, a reference substance and a reference medicinal material chromatography, and the method is easy and convenient to operate, low in detection cost and high in repeatability and specificity; and quality control can be effectively carried out in the production process of the heart-protecting granules.
Owner:ZHUHAI TIANDA RES & DEV CO LTD