检索结果-南通市图书馆

Simultaneous Biparametric Determination of Total Calcium and Potassium in Biological Fluids by flow injection analysis──Use of Powell＇s Method in the System Optimization

引用

Chemical Research in Chinese Universities 1994年第1期10卷 5-15页

作者： Araujo, Alberto N. Jun, Shiao Lima, Jose L.F.C. Alonso, Julian Poch, Manel del Valle, Manel

ＳｉｍｕｌｔａｎｅｏｕｓＢｉｐａｒａｍｅｔｒｉｃＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＴｏｔａｌＣａｌｃｉｕｍａｎｄＰｏｔａｓｓｉｕｍｉｎＢｉｏｌｏｇｉｃａｌＦｌｕｉｄｓｂｙＦｌｏｗＩｎｊｅｃｔｉｏｎＡｎａｌｙｓｉｓ──Ｕｓ... 详细信息

ＳｉｍｕｌｔａｎｅｏｕｓＢｉｐａｒａｍｅｔｒｉｃＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＴｏｔａｌＣａｌｃｉｕｍａｎｄＰｏｔａｓｓｉｕｍｉｎＢｉｏｌｏｇｉｃａｌＦｌｕｉｄｓｂｙＦｌｏｗＩｎｊｅｃｔｉｏｎＡｎａｌｙｓｉｓ──ＵｓｅｏｆＰｏｗｅｌｌ＇ｓＭｅｔｈｏｄ...

关键词： flow-injection analysis Two-component determination Potassiumand calcium Blood serum Powell's optimization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Simultaneous Biparametric Determination of Total Calcium and Potassium in Biological Fluids by flow injection analysis──Use of Powell＇s Method in the System Optimization

引用

Chemical Research in Chinese Universities 1994年第1期

关键词： flow-injection analysis Two-component determination Potassiumand calcium Blood serum Powell’s optimization

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A Study on the Interaction of the DAS-K with Bovine Serum Albumin by On-line Ultrafiltration and Chemiluminescence

引用

Chinese Journal of Chemistry 2006年第12期24卷 1777-1783页

作者：张琰图章竹君孙永华 College of Chemistry and Materials Science Shaanxi Normal University Xi'an Shaanxi 710062 China College of Chemistry and Chemical Engineering Yan'an University Yah'an Shaanxi 716000 China

Potassium dehydroandrographolide succinate （DAS-K） has antibacterial and antiviral effects. It has been used widely for the treatment of virus pneumonia, malaria and respiratory infections. In this work, a novel flow-injection chemiluminescence （CL） method for the determination of DAS-K was proposed. The method is based on the reaction between DAS-K and hexacyanoferrate（III） in alkaline solution to give weak CL signal, which is enhanced by rhodamine B. The experimental conditions for the CL reaction were optimized and the possible reaction mechanism was discussed. Under the optimum conditions, the concentration of DAS-K is proportional to the CL intensity in the range of 0.1-80 μmol·L^-1 with a detection limit of 0.05 μmol·L^-1. The interaction of the DAS-K with bovine serum albumin by on-line ultrafiltration and flow-injection chemiluminescence was studied. The concentrations of unbound DAS-K from ultra filter tube were determined by the flow-injection CL method. The binding parameters were estimated by the Scatchard plot and Klotz plot. The proposed system proved that FIA-CL coupled with on-line ultrafiltration sampling was a fast and simple technique for the study of drug-protein interaction.

关键词： chemiluminescence ultrafiltration sampling flow-injection analysis drug-protein interaction potassium dehydroandrograpolide succinate bovine serum albumin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Electrogeneration of ferrate (Ⅵ) in low concentration NaOH solution for flow-injection-chemiluminescence detection

引用

Chinese Chemical Letters 2010年第8期21卷 951-954页

作者： Hui Jing Zhang Yong Gang Hu Yong Qian Wang Jie Zhang School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Agricultural Microbiology College of Life Science and Technology Huazhong Agricultural UniversityWuhan 430070China College of Environmental Science & Technology Huangshi Institute of TechnologyHuangshi 435003China

The possibility of direct analytical applications of ferrate（Ⅵ） solution,which was freshly electrogenerated in low-concentration NaOH electrolyte,was studied by a flow-injection-chemiluminescence（FI-CL） *** was found that some inorganic ions, organic molecule and biomolecule could enhance the chemiluminescence emission caused by ferrate（Ⅵ）-luminol reaction.V（Ⅴ）, Ca（Ⅱ）,Mg（Ⅱ）,phloroglucinol,and bovine hemoglobin（Hb） chosen as samples were successfully detected by this developed *** analytical characteristics of the system for the analytes determination including linear ranges,correlation coefficients, limits of detection combined with FI analysis were studied.

关键词： Chemiluminescence flow-injection analysis Ferrate(Ⅵ)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

flow-injection Chemiluminescence Sensor for the Determination of Gallic Acid by Immobilizing Luminol and Periodate on Anion-exchange Resin

引用

Chinese Journal of Chemistry 2002年第10期20卷 1049-1054页

作者：张四纯周国俊鞠熀先 Department of Chemistry Institute of Analytical Science State Key Laboratory of Coordination Chemistry Nanjing University Nanjing 210093 China

A novel chemiluminescence (CL) sensor for the determination of gallic acid combined with flow injection analysis was developed by electrostatically immobilizing luminol and periodate on anion-exchange resins respectively. Gallic acid was sensed by its enhancing effect on the weak CL reaction between luminol and periodate, which were eluted from the ion exchange column. The possible reaction mechanism of the CL system was suggested and discussed. The response of the sensor to gallic acid concentration was linear over the range of 8.0×10 -9-1.0×10 -6 mol/L with a detection limit of 6.5×10 -9 mol/L (3σ). The relative standard deviation (RSD) for 7 repetitive determinations of gallic acid (1.0×10 -7 mol/L) was 1.8%. The sensor could be used for over 400 times determination with a good reproducibility.

关键词： chemiluminescence sensor gallic acid luminol periodate flow-injection analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：