5 results about "Thiamphenicol" patented technology

The application discloses an antibody against thiamphenicol and / or florfenicol, a detection product and a method for detecting thiamphenicol and / or florfenicol, and relates to the technical field of thiamphenicol / florfenicol detection. The thiamphenicol or florfenicol monoclonal antibody provided by the application has high specificity for thiamphenicol or florfenicol, and has high detection sensitivity and a wide linear detection range for thiamphenicol or florfenicol. The application is helpful for rapidly detecting thiamphenicol and florfenicol antibiotic residues in livestock and poultry products and aquatic products.

The utility model relates to a component detection device for an enteric-coated tablet, and aims to solve the technical problems that pollution is easily caused in the process of transferring the ground enteric-coated tablet at present, and thiamphenicol in the enteric-coated tablet is easily decomposed when being transferred and ground due to the fact that the thiamphenicol is easily decomposed when being exposed to light, so that the component detection result of the enteric-coated tablet is influenced. Comprising a grinding pipe, an extraction pipe, a filter pipe and a storage pipe, the grinding pipe, the extraction pipe, the filter pipe and the storage pipe are sequentially connected from top to bottom, the top of the grinding pipe is connected with a cover plate through a bolt, a driving motor is installed on the cover plate, a grinding mechanism is arranged in the grinding pipe and connected with the driving end of the driving motor, and the driving end of the driving motor is connected with the extraction pipe. According to the utility model, the grinding, extracting and filtering of the enteric-coated tablet can be continuously completed in a sealed space, and the treated sample does not need to be transferred, so that the influence on the component detection result of the enteric-coated tablet caused by pollution and photolysis of thiamphenicol in the enteric-coated tablet in the transferring process is avoided.

This invention relates to a chiral method for preparing thiamphenicol. Specifically, the method uses p-methylsulfonylbenzaldehyde and glycine ester as starting materials, and carries out an asymmetric aldol reaction in the presence of a pyridinium salt carbonyl catalyst, followed by a reduction and amidation reaction to obtain thiamphenicol. This invention utilizes the strong catalytic ability of small-molecule pyridinium salt carbonyl catalysts, starts with inexpensive and readily available raw materials, reduces the steps of introducing and removing protecting groups, shortens the synthetic route, and efficiently synthesizes optically pure thiamphenicol. Furthermore, the preparation method of this invention is simple to operate and environmentally friendly.

The invention relates to a preparation method and application of a MoS2 (at) CoFe-LDH (at) Ni-MOF composite material. The catalyst is synthesized by taking CoFe-LDH coated Ni-MOF as a precursor and adopting a hydrothermal method, and is of a six-petal snowflake-shaped branch structure. In a degradation experiment aiming at a target pollutant thiamphenicol, the composite catalyst shows excellent performance. The test result shows that the MoS2-loaded MoS2 (at) CoFe-LDH (at) Ni-MOF catalyst has the degradation rate of about 70% in the test period of 10 days. Compared with the prior art, the cathode of a control group which is not loaded with the catalyst can only reach the degradation rate of about 55% within the same time. The system loaded with the catalyst significantly improves the degradation rate, and shortens the time required for achieving a high removal rate. The catalyst shows remarkable technical advantages and good application prospects in the field of electrochemical removal of organic pollutants in water.

The invention relates to a ZIF-67 (at) CoFe-LDH (at) Ni-MOF catalyst, which is characterized in that lamellar Ni-MOF is used as a precursor, and the ZIF-67 (at) CoFe-LDH (at) Ni-MOF electrocatalyst is prepared by a hydrothermal synthesis method. According to the method, thiamphenicol is taken as a target pollutant, and the degradation performance of the composite catalyst within 10 days is measured. Results show that compared with other catalysts, the CoFe-LDH coated Ni-MOF composite material shows the strongest antibiotic degradation performance, the concentration of TAP is reduced to 0.55 mg / L when a cathode is in 2 d, and ZIF-67 coated CoFe-LDH coated Ni-MOF shows an excellent electrocatalytic degradation effect. The degradation rate within 10 days is 90% respectively. Compared with a cathode control group which is not loaded with the catalyst and can only reach the degradation rate of about 55% within 10 days, the system loaded with the catalyst (especially CoFe-LDH-coated Ni-MOF) obviously shortens the time required for achieving high degradation. The method has remarkable technical advantages and wide application prospects in the field of electrochemically removing organic pollutants in water.