排序
制何首乌中的二苯乙烯苷类化学成分的LC-QTOF-MS鉴定
1前言1.1何首乌的概述何首乌,是一种蓼科植物中药何首乌(Polygonum multiflo一u1Thmb.)的干燥块根,含有多种药理活性成分,例如二苯乙烯苷、蒽醌类衍生物和软磷脂等,是享誉中外、延用千年的知...
2015WPS论文答辩专题
中山大学SUN YAT-SEN UNIVERSITY9论文绪论The paper introduction研究背景The research background研究方法The research methodsCONTENTS研究结果The results of the study
pH响应均三嗪淀粉醚的合成及性能研究
pH响应均三嗪淀粉醚的合成及性能研究Synthesis and Properties of Novel pH-responsive s-triazine Starch EtherAbstractIn this study,based on acidic and alkaline responsiveness of tertia...
电感耦合等离子质谱法快速检测豆类及其制品中铅镉等重金属残留的方法研究
Rapid detection of heavy metal residues such as lead and cadmium inlegume and its products by inductively coupled plasma massspectrometry (ICP-Ms)AbstractEstablish ICP-Ms method fo...
合作探究式教学在初中化学教学中的应用
AbstractUnder the influence of traditional teaching,the development of students has beenrestricted.In order to cultivate innovative talents in the new era,teaching needs to berefor...
含腈基的液晶制备和性能研究
AbstractChiral side-chain liquid-crystalline polymers were graft copolymerized by usingpoly(methylhydrogeno)siloxane,a cholesteric monomer (Mi)cholesteryl4-(undecen-1-yloyloxy)benz...
基于光辅助反应的化学发光和汞冷蒸气发生的研究
四川大学博士学位论文基于光辅助反应的化学发光和汞冷蒸气发生的研究统的COD测定方法相比,具有明显的优势:(1)分析时间短,大概5~10分钟就能完成一次样品测定;(2)不消耗昂贵的(Ag2SO4),有毒的...
年产2万吨酒精发酵车间设计
北京理工大学珠海学院AbstractAlcohol is widely used in national defense,food,biology,chemical industry andmedicine,etc.Stimulated by the increasing depletion of mineral energy and t...
年产2万吨柠檬酸厂生产工艺的设计
北京理工大学珠海学院课程论文annual output of 20000 tons citric acid factory Production processdesignAbstractIn this design,cassava is used as raw material.The dried tapioca is grou...
年产600吨无毒增塑剂乙酰柠檬酸三丁工艺设计
北京理工大学珠海学院2020届本科生毕业设计The preliminary design of the technology of 600 tons per yearNontoxic Plasticizer Tributyl acetylcitrateAbstractIn this design,600 tons of n...










