A micellar electrokinetic chromatographic (MECC) method with sodium cholate as pseudostationary phase was proposed for the separation and quantitation of two analgesic formulations containing acetaminophen, dextro-met...A micellar electrokinetic chromatographic (MECC) method with sodium cholate as pseudostationary phase was proposed for the separation and quantitation of two analgesic formulations containing acetaminophen, dextro-methorphan hydrobromide, phenylpropanolamine hydrochloride, and chlorpheniramine maleate. The internal standard method was proved to be able to yield satisfactory results even with a modular CE instrument with RSD between 0.6 similar to 2.1%, and recoveries ranging from 98.1 similar to 99.9%.展开更多
Two capillary electrophoresis methods were developed for the determination of the active constituents in four anti-hrpertensive formulations.These active constituents are nitrendipine and atenolol in Tabellae Nile, an...Two capillary electrophoresis methods were developed for the determination of the active constituents in four anti-hrpertensive formulations.These active constituents are nitrendipine and atenolol in Tabellae Nile, and hydrochlorothiazide, amiloride hydrochloride, captopril, and enalapril maleate in three other tablet formulations,respectively. The internal standard method was employed for quantitation with RSD between 1 .2~4.3%, recoveries ranging from 93. 1 ~ 101 .0%.展开更多
A mixed vuriational formulation for large deformation analysis of plates is introduced. In this formulation the equilibrium ami compatibility equations are satisfied identically by means of stress functions and displa...A mixed vuriational formulation for large deformation analysis of plates is introduced. In this formulation the equilibrium ami compatibility equations are satisfied identically by means of stress functions and displacement components, respectively, and the constitu,lye equations are satisfied in a least square sense. An example is solved and the results are compared with those available in the literature.Further, the functional is particularized for buckling analysis of plates and a simple example is solved to illustrate the theory.展开更多
Varicocele is a common disease in male urology clinic,mainly manifested as testicular pendent distension discomfort,scrotal moisture,less weak semen and other symptoms.There is no specific drug in clinical treatment o...Varicocele is a common disease in male urology clinic,mainly manifested as testicular pendent distension discomfort,scrotal moisture,less weak semen and other symptoms.There is no specific drug in clinical treatment of modern medicine and traditional Chinese medicine.Mailuo Shutong Pills was created by TANG Zuxuan,a Chinese medical master,for the treatment of damp and heat stasis type thrombotic superficial phlebitis and other vascular diseases.In clinical application,it was found to have a good clinical effect on the treatment of symptoms caused by varicose vein.This paper analyzed the formulation mechanism of Mailuo Shutong Pills in the treatment of varicocele from the perspective of traditional Chinese and western medicine,and provides theoretical basis for clinical application.展开更多
Agrochemicals are indispensable materials in agricultural production,used to control or prevent diseases,insects and weeds,and play important roles in ensuring both food security and food safety.Meanwhile,the negative...Agrochemicals are indispensable materials in agricultural production,used to control or prevent diseases,insects and weeds,and play important roles in ensuring both food security and food safety.Meanwhile,the negative impacts of modern synthetic pesticides on humans and the environment could not be neglected.Thus,the production,registration,application and monitoring of pesticides should be strictly checked to ensure their commercial product quality and safety to human health as well as to the environment.This review summarizes the analytical chemistry involved in the quality control(QC)analysis for commercial formulation,residue analysis,dietary risk assessment and regulation prospects of pesticides.The main concepts and contents of pesticide analytical chemistry are comprehensively introduced and analyzed.In addition,the requirements and criteria of the relevant guidelines from various organizations are discussed.Finally,the research frontier areas and future trending for the invention of new generation of agrochemicals,registration/enforcement,market monitoring and risk management of pesticides are discussed.展开更多
文摘A micellar electrokinetic chromatographic (MECC) method with sodium cholate as pseudostationary phase was proposed for the separation and quantitation of two analgesic formulations containing acetaminophen, dextro-methorphan hydrobromide, phenylpropanolamine hydrochloride, and chlorpheniramine maleate. The internal standard method was proved to be able to yield satisfactory results even with a modular CE instrument with RSD between 0.6 similar to 2.1%, and recoveries ranging from 98.1 similar to 99.9%.
文摘Two capillary electrophoresis methods were developed for the determination of the active constituents in four anti-hrpertensive formulations.These active constituents are nitrendipine and atenolol in Tabellae Nile, and hydrochlorothiazide, amiloride hydrochloride, captopril, and enalapril maleate in three other tablet formulations,respectively. The internal standard method was employed for quantitation with RSD between 1 .2~4.3%, recoveries ranging from 93. 1 ~ 101 .0%.
文摘A mixed vuriational formulation for large deformation analysis of plates is introduced. In this formulation the equilibrium ami compatibility equations are satisfied identically by means of stress functions and displacement components, respectively, and the constitu,lye equations are satisfied in a least square sense. An example is solved and the results are compared with those available in the literature.Further, the functional is particularized for buckling analysis of plates and a simple example is solved to illustrate the theory.
基金Supported by Traditional Chinese Medicine Science and Technology Development Program of Shandong Province(2015-108)Horizontal Project of The Affiliated Hospital of Shandong University of Traditional Chinese Medicine(H20210201-01).
文摘Varicocele is a common disease in male urology clinic,mainly manifested as testicular pendent distension discomfort,scrotal moisture,less weak semen and other symptoms.There is no specific drug in clinical treatment of modern medicine and traditional Chinese medicine.Mailuo Shutong Pills was created by TANG Zuxuan,a Chinese medical master,for the treatment of damp and heat stasis type thrombotic superficial phlebitis and other vascular diseases.In clinical application,it was found to have a good clinical effect on the treatment of symptoms caused by varicose vein.This paper analyzed the formulation mechanism of Mailuo Shutong Pills in the treatment of varicocele from the perspective of traditional Chinese and western medicine,and provides theoretical basis for clinical application.
基金supported by Guangxi Key Research and Development Program,China(No:AB21196039)the National Natural Science Foundation of China(No:32172439)Key Research and Development Program of Hainan Province,China(No:ZDYF2022XDNY232).
文摘Agrochemicals are indispensable materials in agricultural production,used to control or prevent diseases,insects and weeds,and play important roles in ensuring both food security and food safety.Meanwhile,the negative impacts of modern synthetic pesticides on humans and the environment could not be neglected.Thus,the production,registration,application and monitoring of pesticides should be strictly checked to ensure their commercial product quality and safety to human health as well as to the environment.This review summarizes the analytical chemistry involved in the quality control(QC)analysis for commercial formulation,residue analysis,dietary risk assessment and regulation prospects of pesticides.The main concepts and contents of pesticide analytical chemistry are comprehensively introduced and analyzed.In addition,the requirements and criteria of the relevant guidelines from various organizations are discussed.Finally,the research frontier areas and future trending for the invention of new generation of agrochemicals,registration/enforcement,market monitoring and risk management of pesticides are discussed.
