电化学指纹图谱
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=收稿日期>2010206218=基金项目>重庆发酵床零排放养猪关键技术研究与示范(09505);重庆畜牧科学院基本科研项目猪粪便快腐菌剂筛选的研究(09609)=作者简介>杨柳(19762),男,博士,从事兽医微生物研究工作,Em ai:lyangliuldz @163.co m ;付利芝,通讯作者,Em ai:l flzf u liz h i @文章编号:10052376X(2010)0920845203=综 述>ERIC 2PC R 及其指纹图谱技术的研究杨柳,张邑帆,郑华,李大军,杨金龙,杨睿,付利芝(重庆市畜牧科学院,重庆荣昌 402460)=摘要> 肠杆菌基因间重复共有序列(Enterobacterial repe titive i ntergen ic consensus ,ER I C )是主要存在于肠道细菌中的一类基因间重复序列,长度为127bp ,该序列在肠道细菌染色体上的分布和拷贝数有种间的特异性。
根据ER I C 序列建立的ER I C 2PCR 实际上是一种半随机性质的PCR,广泛应用于细菌分型、流行病学调查和分子微生态学研究。
本文简介了ER I C 2PCR 反应的特点及其应用的原理,详细阐述目前广泛应用的ER I C 2PCR 琼脂糖凝胶电泳(PCR 2PCR 2AGE )技术的不足,指出该方法所获电泳图谱中相同位置的D NA 条带可能包括不同的D NA 序列,指纹图谱分析时可能夸大模板DNA 的相似性。
强调ER I C 2PCR 变性梯度凝胶电泳(PCR 2PCR 2D GGE )技术是其应用的一个新方向,所得的指纹图谱能够更加敏感、准确、有效地展示底物序列的差异,其中的DNA 条带不需测序就可直接用于科研和生产实践中。
=关键词> ER IC ;PCR 2PCR 2AGE ;PCR 2PCR 2DG GE ;指纹图谱=中图分类号>R 23 =文献标识码>AER IC 2PCR and its fi n gerp r i n tingY ANG L i u ,Z HA NG Y i 2fan ,Z H E NG H ua ,LI Da 2j u n ,YANG Ji n 2long ,YANG Ru,i FU L i 2z h i(Chongqing Acade my o f Ani m a l S cience ,R on g chang Chongqing 402460,China )=Ab stra ct > Enterobac terial repe titive i ntergen ic consensus ,ER I C,is a k i nd of dispersed repetiti ve D NA sequence found in the geno m e of entero bacter i a .ER IC has 127bp and its d i str i butio n and copy nu m be rs are spec ies 2spec ific in enter 2obacter i a l chro m oso m e .ER I C 2PCR des i gned fro m the sequence of ER I C act ua lly is ha lf rando m PCR,and s u itable for the bacter ial c l assifi catio n ,ep i de m i olo gical i nvesti ga ti on and the structure of an m i c robial co mmun ity .In t h is pape r ,we re 2vie wed ER IC 2PCR feature and its app licati on ,and pointed out that the DN A bands w it h identica l positi ons i n fi nge rprint based o n t he agarose gel e l ectrophoresis (AGE)patte rns of ER I C 2PCR a m plified products can conta i n d iffe rent sequences ,which could possibly exagge ra te t he si m ilarities or d i versities a m o ng sa m ples usi ng d i versity i ndex .H o wever ,the ER I C 2PCR fi ngerpr i nt based on denaturi ng grad ient ge l electrophoresi s gel e lectro phoresis (DGGE)pa tterns can sentitively ,ex 2actl y and e ffecti ve l y sho w the difference of temp l e te D NA ;the DNA bands i n th i s fi ngerpr i nt do not need to be c l oned ,se 2quenced ,and can be directl y used in sc i entifi c resea rch and pro duc i ng prac tice .=K ey w or ds > ER IC ;PCR 2PCR 2AGE ;PCR 2PCR 2DGGE ;F i nge rpri n t肠杆菌基因间重复共有序列(enterobacter i a l repetitive i n 2tergen i c consensus,ER IC)首次由S HARPLES 等[1]于1990年在E.coli 中发现,命名为/基因间重复单位0(i ntergen ic repeat unit ,IRU )。
不同产地木通的电化学指纹图谱研究陈龙梗;李欢欢;石慧慧;刘亚伟;杨青山;程旺兴【摘要】目的:研究中药木通的电化学指纹图谱,考察反应温度、药材加入量等影响因素,并用电化学指纹图谱对不同产地中药木通进行鉴别.方法:采用B-Z震荡技术,将木通粉末加入以丙二酸为耗散物的Br03-+H++ Ce4+丙二酸振荡体系中,用电化学工作站记录数据,用Origin软件绘制电位(E)随时间(t)变化的曲线,计算数据,分析图谱.结果:考察了不同条件对B-Z振荡图谱的影响,获得了不同产地木通的电化学指纹图谱,并对其电化学指纹图谱进行了探讨.确定最佳实验条件为:温度310 K、转速400 r·min-1、药材加入量为0.200 0 g.结论:电化学指纹图谱简便、快速、直观,可方便地用于不同产地木通的区分和鉴别.%Objective:To identify Akebia by using electrochemical fingerprints.Methods:The B-Z chemical oscillating method was applied in the study,oscillating chemical reaction was studied in the system of BrO3-+ H + + Ce4+ +CH3COCH3.Akebia powder was added to the chemical oscillation system,electricity chemistry workstation record data,E-tcurve drawing with Origin software,data calculation,analysis of map.Results:The influence of different conditions on B-Z oscillation pattern was examined,the different regions'electrochemical fingerprints were obtained.The optimum conditions were as follows:310 K the temperature,400 r· min-1 the speed and adding 0.200 0 g of Akebia powder.Conclusion:The electrochemical fingerprints can be used for identifying the Akebia.The established method is fast,convenient and it has the advantage of convenience,fast and intuitive.【期刊名称】《中国现代中药》【年(卷),期】2016(018)009【总页数】4页(P1139-1142)【关键词】木通;电化学指纹图谱;B-Z振荡;鉴别【作者】陈龙梗;李欢欢;石慧慧;刘亚伟;杨青山;程旺兴【作者单位】安徽中医药大学药学院,安徽合肥230012;安徽中医药大学药学院,安徽合肥230012;安徽中医药大学药学院,安徽合肥230012;安徽中医药大学药学院,安徽合肥230012;安徽中医药大学药学院,安徽合肥230012;安徽中医药大学药学院,安徽合肥230012【正文语种】中文随着中药现代化研究的不断前进,人们对中药的研究也在不断地深入。
不同产地黄芪的电化学指纹图谱研究作者:胡俊平李国凯任云来源:《江苏农业科学》2019年第12期摘要:在BrO3--Mn2+-H+-CH3COCH3振荡体系中加入黄芪为反应底物,通过电化学工作站测定黄芪的电化学指纹图谱,设计正交试验考察建立黄芪电化学指纹图谱的条件并考察黄芪加入量、药材粒度对黄芪电化学指纹图谱的影响。
结果表明,黄芪加入量0.5 g,粒度为80目时可以取得理想的电化学指纹图谱。
在此测定条件下,研究不同产地黄芪的电化学指纹图谱,通过分析图谱中的特征物理参数,达到鉴定黄芪真伪和对不同产地黄芪进行质量评价的目的。
关键词:电化学指纹图谱;黄芪;不同产地;质量评价;正交试验;真伪鉴定;质量评价;产地鉴别中图分类号: S567.23+9.01 ;文献标志码: A ;文章编号:1002-1302(2019)12-0224-04黄芪(Radix Astragali)为豆科植物膜荚黄芪或蒙古黄芪的干燥根,具有健脾补中、利水消肿、升阳举陷、利尿之功效,主要分布在山西、甘肃、黑龙江、吉林、辽宁、河北、内蒙等地。
黄芪的化学成分为黄芪皂苷、黄酮、多糖、单糖、生物碱、叶酸、多种氨基酸以及人体所需要的微量元素[6]。
本研究分析了黄芪在BrO3--Mn2+-H+-CH3COCH3体系中做振荡反应的电化学指纹图谱,其特征物理量为(1)诱导时间(t诱导):从加入试剂到振荡发生的时间;(2)振荡寿命(t振荡):振荡开始到振荡结束的时间;(3)最高电位(Emax):振荡曲线的电位最高值;(4)平衡电位(E平衡):振荡结束时所对应的电位。
同时,本研究探讨了振荡体系各物质浓度、温度、药材粒度、加入量等对电化学指纹图谱的影响,分析了不同产地黄芪电化学指纹图谱的特征,结果表明不同产地黄芪的电化学指纹图谱有明显区别,该方法可用于黄芪药材的产地鉴别[7]。
1 仪器与材料1.1 仪器WK-600A高速药物粉碎机(山东省青州市精誠机械有限公司);DF-101S聚热式恒温加热磁力搅拌器(河南省巩义市予华仪器有限公司);电化学工作站(瑞士万通204);烧杯;容量瓶;玻璃棒;滴管。
不同产地连翘的电化学指纹图谱胡俊平;杨健;任云;刘妍;毕慧敏;游富英【摘要】在BrO3--Mn2+-H+-CH3 COCH3振荡体系中加入连翘为反应底物,通过电化学工作站测定柴胡的电化学指纹图谱.单因素试验确定柴胡加入量为1.2 g、温度为45℃、粒度为80目时,可以取得理想的电化学指纹图谱;在此测定条件下,研究不同产地柴胡的电化学指纹图谱,通过分析图谱中的特征物理参数,达到鉴定柴胡真伪和对不同产地柴胡进行质量评价的目的.【期刊名称】《江苏农业科学》【年(卷),期】2017(045)024【总页数】3页(P173-175)【关键词】电化学指纹图谱;连翘;质量评价;单因素试验;特征物理参数【作者】胡俊平;杨健;任云;刘妍;毕慧敏;游富英【作者单位】邯郸学院化学化工与材料学院/邯郸学院化学化工省级本科实验教学示范中心,河北邯郸056005;邯郸学院化学化工与材料学院/邯郸学院化学化工省级本科实验教学示范中心,河北邯郸056005;邯郸学院化学化工与材料学院/邯郸学院化学化工省级本科实验教学示范中心,河北邯郸056005;邯郸学院化学化工与材料学院/邯郸学院化学化工省级本科实验教学示范中心,河北邯郸056005;邯郸学院化学化工与材料学院/邯郸学院化学化工省级本科实验教学示范中心,河北邯郸056005;邯郸学院化学化工与材料学院/邯郸学院化学化工省级本科实验教学示范中心,河北邯郸056005【正文语种】中文【中图分类】R284.1中草药的发展和研究在中国具有悠久的历史和深远的文化,是中华名族不可或缺的瑰宝,也是世界文化遗产的重要组成部分,更为全世界人们的健康作出了不菲的贡献。
众所周知,中药是由多种化学成分组成的混合物,只有多种成分相互作用才能达到治病的效果。
因此,很难通过测定药材某种成分达到评价中药专属性和有效性的目的[1]。
目前,中药常用的检测方法有气相色谱指纹图谱法、高效液相指纹图谱法、红外光谱法等[2-3]。
专利名称:一种电化学指纹图谱用于快速鉴别陈皮和广陈皮的方法
专利类型:发明专利
发明人:周鸿立,韩浩渺,高佳卉,曲小姝,张艺潼,王亚婷
申请号:CN202210315614.3
申请日:20220329
公开号:CN114659861A
公开日:
20220624
专利内容由知识产权出版社提供
摘要:本发明是一种电化学指纹图谱用于快速鉴别陈皮和广陈皮的方法,属于中药材鉴别领域。
通过层次分析对影响鉴别的因素进行筛选,根据重要程度选取温度、硫酸、溴酸钠三个因素进行实验;通过单因素试验选取最优的实验条件,最终以最优条件进行陈皮与广陈皮的鉴别。
在此条件下,不仅节约了时间和成本,而且陈皮与广陈皮有着明显的差别。
该技术为今后陈皮与广陈皮及其他相似中药材的鉴别和质量评价提供技术基础。
申请人:吉林化工学院
地址:132000 吉林省吉林市龙潭区承德街45号
国籍:CN
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Cortex Moutan is a traditional Chinese medicine from the root bark of Paeonia suffruticos Andr. It can be used for the treatment of antiinflammatory, sedative, lower blood pressure,antithrombosis, antiatherosclerosis and antiarrhythmia 1. As a result, a fast and convenient determination method is required in pharmaceutical analysis. Currently identification of Cortex Moutan has been mainly performed by the high-performance liquid chromatography 2-5 approach. High-performance liquid chromatography has high sensitivity and good selectivity, but it requires the complex sample pre-treatment.Compared to the HPLC method, using oscillation system for identification of traditional Chinese medicine has gained interests from several analysts work 6-9 because of its simplicity,high speed and good sensitivity 10-14.This paper presents a study we have conducted to identify Cortex moutan using oscillation system. Present study shows that addition of some amount of Cortex Moutan powder in oscillation system causes a change in the E-t curve. Such response suggests that some components in Cortex Moutan are reacting to some components in this system. The E-t curve is then correlated with different origin areas to identify the origin areas of Cortex moutan, called electrochemical finger-print. The study shows that this method is very fast andStudy on Electrochemical Fingerprints of Traditional ChineseMedicine Cortex Moutan from Different OriginsW ANG -X ING C HENG *, Y I G UAN , J IA C HEN and C HENG -W U F ANGSchool of Pharmacy, Anhui University of Traditional Chinese Medicine, Anhui Key Laboratory of Modern Traditional Chinese Medicine,45th Shihe Road, Hefei 230031, P .R. China*Corresponding author: Fax: +86 551 5169222; Tel: +86 551 5169230; E-mail: chengwangxing@Asian Journal of Chemistry; V ol. 24, No. 8 (2012), 3533-3536(Received : 28 July 2011;Accepted : 14 March 2012)AJC-11184convenient in identifying traditional Chinese medicine. In addition, it has advantages of good reproducibility, sensitivity and precision.All chemicals used in the study are of analytical reagent grade and from Sinopharm Chemical Co., Ltd. (Shanghai,China). Solutions of 0.2 M KBrO 3, 0.4 M HOOC-CH 2-COOH,3 M H 2SO 4, 0.005 M Ce(NH 4)4(SO 4)4 were made immediately before the experiment. Double distilled water was used in the entire experiment.Cortex Moutan used in the study are from Phoenix Mountain, Bozhou, Tongling, Qingyang (Anhui China) and were identified prior to the experiment.Oscillating experiments were performed in a glass container with a Model CJJ78-1 magnetic stirrer (Jiangsu,China) regulated by a Model HH-501 thermostat at 38 ± 0.05ºC (Jiangsu, China), changes in potential were followed by a type 213 platinum electrode (Shanghai, China), a model 217saturated calomel electrode (Shanghai, China) as reference electrode. Potentials (E) of the electrode as a function of time (t) were recorded by LK2005A electrochemical instrument (Tianjin, China) to record kinetic curves (E-t) of the oscillation reaction.。