•  
  •  
 

Abstract

Being different from bipolar pulse technique,a new type conductivity detection circuit system applying constant current source for ion chromatography was designed which effectively reduces the complexity of bipolar pulse technique,accurately and intelligently completes the signal amplification,collection,processing and spectrum displaying.In this article the detection principle and the hardware of the system were described and the experimental results with accurate and reliable measurements were shown.

Keywords

constant current source, ion chromatography, conductimetric detection

Publication Date

2009-02-28

Online Available Date

2009-02-28

Revised Date

2009-02-28

Received Date

2009-02-28

References

[1]Mou Shi-fen(牟世芬),Liu Ke-na(刘克纳).Meth-ods and applications of ion chromatography[M].Bei-jing:Chemical Industry Press,2000.
[2]Small H,Stevens T S,Bauman W C.Novel ion ex-change chromatographic method using conductimetricdetection[J].Analytical Chemistry,1975,47:1801-1809.
[3]Rosanne M Guijt,Christopher J Evenhuis,MiroslavMacka,et al.Conductivity detection for conventionaland miniaturised capillary electrophoresis systems[J].Electrophoresis,2004,25:4032-4057.
[4]Johnson D E,Enke C G.Bipolar pulse technique forfast conductance measurement[J].Analytical Chemis-try,1970,42(3):329-335.
[5]Zhou Zhi-you(周志有),Lin Shui-chao(林水潮),Wang Jian-hua(王建华),et al.Conductivity detectorbased on square wave stimulation and pulsed sampling[J].Analytical Instrumentation(in Chinese),2000,4:17-21.
[6]Gao Guang-tian(高光天).Theappliedtechniqueofinstrument amplifier[M].Beijing:Science Press,1995.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.