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32 results about "Furazolidonum" patented technology

Method for detecting residue of seven synthetic antibacterial agents in aquatic products

A detection method simultaneously detects residue of multiple synthetic antibacterial agents in aquatic products by a high performance liquid chromatography. The synthetic antibacterial agents mainly comprise sulfadiazine SD, sulfamerazine SMR, sulfadimidine SDD, sulfadimethoxine SDM, furazolidone FZD, oxolinic acid OXA, nalidixic acid NAA and the like. The multiple synthetic antibacterial agents in an aquatic product sample are extracted by acetonitrile, degreased by normal hexane, concentrated, purified by a solid phase extraction column (alumina neutral) or a C18 solid phase extraction column, analyzed by a liquid chromatograph, detected by an ultraviolet detector, and quantified by an external standard method. The method can quickly, sensitively and accurately detect multiple target compounds to greatly reduce detection cost and shorten detection time.
Owner:吴光红 +1

Method for simultaneously detecting five medicaments in water

The invention discloses a method for simultaneously detecting the medicaments such as furazolidone, diazepam, trimethoprim, acetaminophen and ibuprofen in water. The method comprises the following steps of: filtering a water sample to remove suspended matter; adjusting the pH of the water sample to be 2 to 4; activating hydrophile-lipophile balance (HLB) solid phase extraction column by using acetone, methanol, ammonium acetate-containing formic acid aqueous solution and ultrapure water in sequence; after the enrichment is finished, drying the HLB solid phase extraction column under the protection of nitrogen and eluting the HLB solid phase extraction column; collecting eluant, and drying the eluant by blowing a nitrogen flow; adding acetonitrile to dissolve the residue; and quantitatively detecting the concentration of the five medicaments. By the method, the water sample pretreatment is environment-friendly, easy to operate, large in enrichment factor, and high in reproducibility; and the content of the five common medicaments in a water environment can be analyzed quickly and accurately.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Furazolidone tablet preparation method

The present invention relates to a furazolidone tablet preparation method, which is performed according to the following steps: taking furazolidone, a binder and a solubilizer, screening, respectively screening a lubricant and a flow aid with a 80-120 mesh sieve, adding water or an alcohol to the partial binder having the content of more than or equal to 28% of the total amount of the binder and the partial solubilizer having the content of more than or equal to 14% of the total amount of the solubilizer to prepare a binder solution with a mass concentration of 1-30%, uniformly mixing the remaining binder and the remaining solubilizer, uniformly mixing with the furazolidone according to an equivalent gradual increase method, adding the binder solution to prepare a soft material, carrying out 12-30 mesh pelletization, drying at a temperature of less than 70 DEG C, carrying out 12-30 mesh granulating, adding a lubricant and a flow aid, uniformly mixing, and tabletting to obtain the finished product. According to the present invention, the reasonable process operation sequence is adopted, the part of the solubilizer is adopted to increase furazolidone hydrophilicity, and the part of the solubilizer is adopted to promote furazolidone self-emulsifying and increase solubility in water so as to improve a dissolution rate and increase bioavailability.
Owner:YUNNAN PHYTOPHARML

Synthesis method of furazolidone

The invention belongs to the field of organic chemical synthesis, and particularly relates to a synthesis method of furazolidone. The synthesis method comprises the following steps: introducing gasified ethylene oxide into a hydrazine hydrate through a coiler placed in hot water so as to prepare beta-hydroxyethylhydrazine; after cooling the beta-hydroxyethylhydrazine, adding sodium methoxide methyl alcohol solution and then stirring, and adding dimethyl carbonate so as to prepare 3-amino-2-oxazolidinone; and adding water in 3-amino-2-oxazolidinone, adding hydrochloric acid, rising the temperature, adding 5-nitryl furfural ester diacetate, and carrying out periodical warming so as to obtain the finished furazolidone. By using the synthesis method, the problems that the process is not environment-friendly, the requirement on equipment is high, the yield of the product is low, and the like in the prior art are effectively solved, and the yield of the product in the invention can be improved by 5-10%.
Owner:衢州伟荣药化股份有限公司

Preparation method of immune nanometer gold test paper strip for fast detecting furazolidone

A method for preparing immune nanogold test paper used to quickly detect furazolidone includes synthesizing coupled matter of flurazolidone ¿C cattle seralbumin and coupled matter of flurazolidone ¿C catalase ; using coupled matter of flurazolidone ¿C cattle seralbumin as immune total antigen; making immune experiment on rabbit to obtain multiple clone antibody of rabbit resistance furazolidone; preparing nanogold reagent being used to label said antibody; fixing IgG antibody and coupled matter of furazolidone ¿C catalase on nitrocellulose film; sealing unreacted active group; using above ¿C prepared film, antibody and paper as well as sample pad to form said test paper.
Owner:SHANGHAI JIAO TONG UNIV

Preparation method and application of derived hapten and artificial antigen of furazolidone metabolite AOZ

The invention discloses a preparation method and application of a derived hapten and an artificial antigen of a furazolidone metabolite AOZ. An active arm introduced into the hapten completely retains a feature structure of an AOZ derivative and has no influence on electron cloud density of the AOZ derivative; in addition, the active arm has an active group which can be coupled with carrier protein and is mild in reaction conditions and simple in operation step; the prepared artificial antigen can be specifically combined with an antibody, has the characteristics of high titer, high sensitivity, high accuracy and the like, and can be used for quickly detecting residues of the furazolidone metabolites in various products.
Owner:广州润坤生物科技有限公司

Low-carbon mixed organic acid used for oil well plug removal, preparation method and application thereof

The invention relates to a low-carbon mixed organic acid used for oil well plug removal, a preparation method and an application thereof. The low-carbon mixed organic acid is prepared from the following raw materials by mass percent: 4-6 % of fatty alcohol, 2.4-2.5 % of ethylene oxide, 4-6 % of alkylbenzenesulfonate, 34-36 % of sulfamic acid, 24-26 % of oxalic acid, 4-6 % of biuret, 8-12 % of furazolidone, 8-12 % of 3-benzofuranone and 2.4-2.6 % of sodium nitrite. The low-carbon mixed organic acid is mainly used in a late stage of heavy oil throughput in Liaohe oilfield so as to improve single well production, especially to remove oil reservoir plug during each throughput, and is relatively substantial in improving steam throughput exploitation effects.
Owner:PETROCHINA CO LTD

Medicine for external application for treating burn injuries

The invention relates to a medicine for external application, which consists of traditional Chinese medicines and western medicines and is used for treating burn injuries. The medicine for external application is prepared from the following raw materials in parts by weight: 2-3 parts of furazolidone, 1 parts of coptidis rhizome, 1 part of cortex phellodendri, 1 part of rheum officinale and a proper amount of borneol. The medicine for external application is formed by grinding furazolidone into powder, respectively frying the coptidis rhizome, the cortex phellodendri and the rheum officinale until the coptidis rhizome, the cortex phellodendri and the rheum officinale are brown, mixing and grinding the coptidis rhizome, the cortex phellodendri and the rheum officinale into powder, mixing the powder and the furazolidone powder and adding the borneol. According to the conventional theory of traditional Chinese medicines, on the basis of an ancestral secrete and long-term clinical practice of an inventor, a unique treating scheme with the traditional Chinese medicines and the western medicines for removing the necrotic tissue, promoting granulation, invigorating the circulation of blood and diminishing swelling can be formed; the medicine for external application is reasonable in formula, complementary in effect and obvious in synergistic interaction. The clinical application shows that the medicine for external application can be used for treating various burn and scald injuries, has obvious treating effects on various burn and scald injuries caused by oil and water and is higher in curing rate.
Owner:郭超民

Colloidal gold immunochromatography test strip for detecting furazolidone metabolites and preparation method and application of colloidal gold immunochromatography test strip

InactiveCN106483300AA simple method for the detection of furazolidone metabolitesRapid method for the detection of furazolidone metabolitesBiological testingMetaboliteMonoclonal antibody
The invention relates to a colloidal gold immunochromatography test strip for detecting furazolidone metabolites and a preparation method and application of the colloidal gold immunochromatography test strip, and belongs to the technical fields of immunology and veterinary drug residue analysis. The test strip comprises a base plate, a sample pad, a colloidal gold pad, a coating membrane and a water absorption pad; protective membranes are arranged at the two ends of the test strip, and the sample pad, the colloidal gold pad, the coating membrane and the water absorption pad are sequentially stuck to the base plate; the colloidal gold pad is coated with colloidal gold-labeled monoclonal antibodies which can recognize the furazolidone metabolites; the coating membrane is provided with an invisible detection line printed by a carrier protein solution coupled with the furazolidone metabolites and an invisible quality control line printed by a goat anti-mouse IgG solution. The colloidal gold immunochromatography test strip has the advantages of being convenient and rapid to operate, visual, high in timeliness and the like and is wide in application range, low in cost and convenient to apply and popularize.
Owner:BIOLOGY INST OF HEBEI ACAD OF SCI

Preparation method and application of electrogenerated chemiluminescence furazolidone biosensor

The invention discloses a preparation method of an electrogenerated chemiluminescence furazolidone biosensor and belongs to the technical field of novel nano functional materials and biological sensors. A novel two-dimensional nano composite material Mn-TiO2 / g-C3N4 is prepared first, the material is loaded with furazolidone antibodies by means of good biocompatibility and large specific surface area, then by means of the cross-linking effect of glutaraldehyde, horse radish peroxidase can catalyze hydrogen peroxide to generate oxygen enzyme in situ in detection, an electrochemical reaction is performed on a base solution, a high and stable electrogenerated chemiluminescence signal is generated, by means of influences of specific quantitative combination of antibodies and antigens on electron transmission capacity, the electrogenerated chemiluminescence signal is correspondingly reduced, finally the low-cost, high-sensitivity and good-specificity electrogenerated chemiluminescence biosensor for detecting furazolidone is prepared, and the biosensor is fast in detection and easy to prepare.
Owner:UNIV OF JINAN

Medicine for treating epistaxis through oral administration and external use and method thereof

ActiveCN103316015AEnhance coagulation and hemostasisOrganic active ingredientsRespiratory disorderCefradinePharmacologic therapy
The invention provides a medicine for treating epistaxis through oral administration and external use and a method thereof. The following components are combined for use as the medicine in parts by weight: 0.5 part of chloramphenicol tablets, 0.5 part of cefradine injection powder, 0.5 part of furazolidone tablets, 30 parts of radix rehmanniae, 30 parts of prepared rhizome of rehmannia, 25 parts of garden burnet root, 30 parts of golden cypress, 30 parts of fructus forsythiae, 25 parts of caulis spatholobi and 25 parts of liquorice, wherein western medicines, namely the chloramphenicol tablets, the cefradine and the furazolidone tablets, are bactericidal medicines for external use, and wherein traditional Chinese medicines, namely radix rehmanniae, prepared rhizome of rehmannia, garden burnet root, golden cypress, 30 parts of fructus forsythiae, caulis spatholobi and liquorice are decocted with water and used as medicines for oral administration. The medicine provided by the invention is obvious in medicine treatment effect, quick to stop bleeding and worthy of popularization and utilization.
Owner:ZHENAO JINYINHUA PHARM

Furazolidone metabolite hapten, as well as preparation method and application thereof

The invention discloses a hapten, as well as a preparation method and application thereof, and specifically relates to a furazolidone metabolite hapten. The invention also discloses a preparation method of the hapten and application thereof. A kit quick detection product established based on the furazolidone metabolite hapten is convenient to use, low in detection cost, and efficient, accurate and quick in detection method; the kit quick detection product is capable of detecting a large batch of samples at the same time, and thus suitable for on-site supervision of furazolidone metabolite residues in animal derived food and screening of lots of samples.
Owner:BEIJING KWINBON BIOTECH

Medicine for treating burn and scald

The invention relates to the technical field of medicine preparation and particularly discloses a medicine for treating burn and scald. The medicine is prepared according to the method which comprises the following steps: mixing oxytetracycline tablets with furazolidone tablets according to the weight ratio of 1:2 and crushing into powder, and adding a little of vegetable oil and stirring into a thick liquid, thus obtaining the medicine, wherein the vegetable oil may be camellia oil, olive oil, peanut oil or soybean oil. The medicine for treating burn and scald has a cure rate of 100%, and free from any side effect; compared with other medicines in same type, the medicine is simple to get materials, convenient and rapid to produce, low in cost, easy to produce on a large scale, fast to take effect, good in curative effect to skin healing, and basically free from scars.
Owner:孔广平

Pretreatment method for detecting furazolidone metabolites in aquatic products

The invention discloses a pretreatment method for detecting furazolidone metabolites in aquatic products. The pretreatment method comprises the steps of S1 crushing a sample to obtain a sample; S2 weighing a sample, adding a mixed solution of methanol and water, homogenizing, and removing fat in the sample to obtain a material A; S3 adding neutral salt, hydrochloric acid and a derivatization reagent into the material A, and performing ultrasonic treatment for 1 to 2 hours at the temperature of 50 to 60 DEG C to obtain a material B; S4 adding an extracting agent into the material B, carrying out ultrasonic treatment and centrifugation, and taking an upper-layer solution to obtain a material C; S5 carrying out secondary extraction by using an extracting agent, and combining the filtrate withthe material C to obtain a material D; S6 adding a dehydrating agent into the material D, filtering, taking filtrate, and volatilizing the extracting agent to obtain a to-be-detected substance. The method is capable of shortening the pretreatment time.
Owner:深圳市深大检测有限公司

Manufacturing method and application of difunctional furazolidone photoeletrochemistry sensor

The invention discloses a manufacturing method of a biological immunity sensor which is constructed on the basis of a functional nanometer material and has electrogenerated chemiluminescence and photoeletrochemistry double signal developing strategies.The manufactured sensor is easy to operate, convenient to carry, high in detection speed, low in cost and capable of being used for detecting furazolidone in the fields of daily production and life fast and sensitively.
Owner:UNIV OF JINAN

Medicine for treating stomach disease and application

The invention relates to the field of medicine, and in particular relates to a medicine for treating stomach disease and an application. The medicine for treating stomach disease comprises the following components in parts by mass: 310-620 parts of furazolidone, 202-520 parts of chloramphenicol, 105-210 parts of propantheline bromide, 2,000-3,000 parts of licorice powder and 2.01-3.95 parts of vitamin B6. The medicine is used for treating acute gastritis, chronic superficial gastritis, chronic atrophic gastritis, gastric ulcer, bile reflux gastritis or duodenal ulcer. According to the medicine for treating stomach disease and application provided by the embodiment of the invention, multiple components are combined to realize sterilization and suppression effects so as to protect and maintain the stomach; and the raw materials are rich, the price is low, and the treatment cost is lower. In a process of treating stomach disease, the medicine has the advantages of high cure rate, short cure time, perfect effect, simplicity and convenience in preparation, simple preparation flow of technological medicines and obvious curative effect, is safe to take, and avoids adverse reaction.
Owner:洪士炀

Internally and externally applied medicines for treating haemorrhoids and method

InactiveCN103285153AComprehensively prescribe the right medicineGood treatment effectOrganic active ingredientsCardiovascular disorderMulberry Root BarkBiology
The invention relates to internally and externally applied medicines for treating haemorrhoids and a method. The internally and externally applied medicines for treating haemorrhoids disclosed by the invention are formed by combining the following medicines in weight ratio: 0.5 part of furazolidone tablets, 0.5 part of norfloxacin capsules, 25 parts of the root bark of white mulberry, 20 parts of radix rehmanniae, 20 parts of honeysuckle, 17 parts of Chinese rhubarb, 25 parts of felwort and 15 parts of the root of bidentate achyranthes. According to the invention, the mixture of furazolidone and starch paste is injected to the haemorrhoids wound in the anorectum of a person through a sterilization syringe without a needle, so that sterilization is carried out at high concentration; in addition, matched with the internally applied traditional Chinese medicines for cooling and detoxifying, haemorrhoids can be treated.
Owner:黄文贺

Feed additive with effects of preventing and treating vibriosis of rainbow trout and application thereof

The invention discloses a feed additive with the effects of preventing and treating vibriosis of rainbow trout and application thereof. The additive is prepared from the following components in partsby weight: 15-20 parts of Chinese rhubarb, 12-16 parts of baikal skullcap root, 18-23 parts of medicine terminalia fruit, 3-5 parts of galangal, 13-18 parts of radix sanguisorbae, 5-7 parts of licorice, 15-20 parts of bunge corydalis herb, 5-9 parts of pomegranate rind, 0.003-0.005 part of sulfanilamide, 0.002-0.004 part of furazolidone and 0.05-0.07 part of chloramphenicol. The feed additive withthe effects of preventing and treating vibriosis of rainbow trout has the beneficial effects: the additive disclosed by the invention has reasonable compatibility among the components, combines Chinese and western medicines, has an obvious synergistic effect as well as obvious antibacterial, anti-inflammation and immunity-enhancing effects, has obvious antibacterial and bactericidal actions on the pathogenic bacteria of vibriosis, has high effect taking speed and exact curative effects, achieves the purposes of preventing and treating the vibriosis of the rainbow trout, and is not likely to generate drug tolerance and free of any toxic side effects.
Owner:TONGHUA NORMAL UNIV

Medicine for treating gastropathy

The invention relates to a medicine for curing stomach illness, which includes furazolidone, vitaminB6 and stomach nourishing components, wherein, the stomach nourishing components include fresh ginger, Indian bread, eugenia pimento or cassia bark, endothelium corneae gigeriae galli, cuttlebone and demerara. Calculated in weight portion, the furazolidone is 0.29 portion, the vitamin b6 is 0.29 portion, the fresh ginger is 16 to 24 portion, the indian bread is 16 to 24 portion, the eugenia pimento or the cassia bark is 26 to 34 portion, the endothelium corneae gigeriae galli is 26 to 34 portion, the cuttlebone is 26 to 34 portion, the demerara is 200 portion. The invention integrates the traditional Chinese medicine theory of China with western medicine, combines the Chinese and western medicine and prepares the medicine which has mild chemotaxis, quick curative effect, is good for recovery, can cure all stomach illnesses, has in particular outstanding effect in curing illnesses, such as doudenal ulcer and stomach ulcer, which are easy to reoccur and take long to be cured, so that such illnesses are not easy to reoccur.
Owner:高欣

High performance liquid chromatography detection method of indometacin furazolidone suppository

The invention discloses a high performance liquid chromatography detection method of an indometacin furazolidone suppository. A mobile phase of the high performance liquid chromatography detection method is formed by mixing acetonitrile and a 0.08-0.12 mol / L glacial acetic acid solution according to the volume ratio of (45-55): (55-45), and a stationary phase is a C18 silica gel chromatographic column. According to the method disclosed by the invention, the contents of two components, namely indometacin and furazolidone, are simultaneously separated and determined by adopting an HPLC method, the sample pretreatment and analysis method is simplified, the analysis efficiency of indometacin furazolidone suppository content determination is improved, and the method has the advantages of high analysis speed, high separation efficiency, high detection sensitivity, automation, wide application range and simple treatment.
Owner:武汉药品医疗器械检验所

Synthetic method of furazolidone metabolite AOZ

The invention discloses a preparation method of 3-amino-2-oxazolidinone (AOZ). The method comprises the following steps: 1) carrying out a reaction on ethylene glycol and PBr3 to obtain 2-bromoethanol; 2) carrying out a substitution reaction on 2-bromoethanol and an alkali, then adding hydrazine hydrate into the system, continuously carrying out a ring-opening reaction, and removing excessive 2-bromoethanol and water after the reaction is completed to obtain an intermediate 2-hydrazinoethanol; and 3) in the presence of an alkali, carrying out a reaction on 2-hydrazinoethanol and diethyl carbonate to obtain 3-amino-2-oxazolidinone (AOZ). According to the method, a nitrofuran metabolite AOZ is synthesized by adopting a one-pot method at the rear half part, so that the loss of a separated andpurified sample in the synthesis process is greatly reduced.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS

Quick-acting anti-influenza cold capsule

The invention relates to the field of medicines, and in particular relates to a quick-acting anti-influenza cold capsule. The quick-acting anti-influenza cold capsule is characterized by being prepared from the following raw materials in parts by weight: 50-150 parts of acetaminophen, 50-150 parts of pseudoephedrine hydrochloride, 30-50 parts of chlorpheniramine maleate, 1-3 parts of dioxopromethazine, 10-30 parts of vitamin C, 10-30 parts of vitamin B1, 10-30 parts of vitamin B2, 10-30 parts of vitamin B6, 1-3 parts of furazolidone, 50-150 parts of radix isatidis and 30-50 parts of radix bupleuri. The quick-acting anti-influenza cold capsule provided by the invention is combination of traditional Chinese medicines and western medicines, and is capable of regulating a nervous system of the human body through western medicine components to reach the effects of relieving pain, clearing heat, relieving cough, preventing asthma, and relieving the symptoms such as rhinobyon and pharyngeal swelling and pain; necessary vitamins for human metabolism and the traditional Chinese medicines such as radix isatidis are added, so that the quick-acting anti-influenza cold capsule is capable of enhancing the resistivity of a human body and treating both symptoms and root causes from improvement of the immunity, and is short in treatment course, fast in acting, and free of causing doze after being taken.
Owner:YANTAI JUXIAN PHARMA

Synthetic method of furazolidone metabolite AOZ

The invention discloses a preparation method of 3-amino-2-oxazolidinone (AOZ). The method comprises the following steps: 1) carrying out a reaction on ethylene glycol and PBr3 to obtain 2-bromoethanol; 2) in the presence of an alkali, carrying out a reaction on NH2NH2Boc and 2-bromoethanol to obtain Boc protected 2-hydrazinoethanol; 3) in the presence of an alkali, carrying out a reaction on Boc protected 2-hydrazinoethanol and diethyl carbonate to obtain Boc protected 3-amino-2-oxazolidinone; and 4) performing deprotection on the Boc group in the Boc protected 3-amino-2-oxazolidinone to obtain 3-amino-2-oxazolidinone. According to the method, the yield of AOZ in the synthesis process is obviously increased, and separation and purification are facilitated.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS
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