Xian Jing-chun

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Study on the Extraction Technology of Total Polyphenol in Kyllinga brevifolia and Antioxidation of Extract
[Objective] The aim was to study the extraction of total polyphenol in Kyllinga brevifolia and antioxidation of extract.[Method] The effects of ethanol concentration,temperature,time and solid-liquid… Expand
Study on extracting total flavone from Loquat seed by ultrasonic wave and research of resistance to oxidation
This paper aimed to extract total flavone from loquat seed and to study its' resistance to oxidation.This research discussed the method of extracting total quantity of flavone and the effect of… Expand
Technology for extracting total alkaloids from Herba agrimoniae.
[Objective]The optimum extraction technology was developed in order to establish practical basis for the development and utilization of Herba agrimoniae.[Method]The total alkaloids from Herba… Expand
Extraction of total quantity flavone from Solanum photeinocarpum and its antioxidation activity
Synthesis and fluorescence properties of 5-nitrosalicylaldehyde contract glycin and its complex of copper(II)and nickel(II)
In this paper a type of 5-nitrosalicylaldehyde-glycin Schiff base ligand is synthesized.Then the ligand is synthesized with Cu(Ⅱ) and Ni(Ⅱ) to get two complexes.The compositions and structures of the… Expand
A Study on Microscale Experiment of Acid and Alkali Titration Analysis
In the microscale design and feasibility studies on the measurement of HAc in the edible vinegar and organic acid,compared with the macroanalysis ,the result is satisfactory in the experiment of… Expand
Synthesis and Characterization of 5-chlorosalicylaldehyde Contract tyrosine and Its Complex of Copper(II)and Nickel(II)
In this paper a new 5-chlorosalicylaldehyde-tyrosine Schiff base ligand and complex containing Cu(Ⅱ) and Ni(Ⅱ) were synthesized.Its compositions and structure have been characterized by The elemental… Expand
Synthesis,optical,and thermal properties of 5-nitrosalicylaldehyde contract thiourea and its complexes of Cu(II),Ni(II),and Zn(II)
A new 5-chlorosalicylaldehyde-thiourea Schiff base ligand and its complexes containing Cu(Ⅱ),Ni(Ⅱ)and Zn(Ⅱ)were synthesized.The compositions and structures of the ligang and its complexes have been… Expand
Technology of extracting total alkaloids from Kyllinga brevifolia
In order to study the optimal technological conditions of extracting total alkaloids from K.brevifolia,the effects of solvent strength,temperature,duration and material-liquid ratio were investigated… Expand
Study of The Minimization on The Determination of Nitrogen in (NH_4)SO_4 Fertilizer by Formaldehyde Method
It is a microscale design and feasibility study for the measurement of nitrogen content in (NH_4)SO_4 fertilizer. The result shows that the microscale experiment is not only chemicals, saving but… Expand