ICCAS OpenIR
Theoretical examination of electroosmosis control with external radial electric field in capillary electrophoresis
Chen, Y; Zhu, Y
1999-07-01
Source PublicationELECTROPHORESIS
ISSN0173-0835
Volume20Issue:9Pages:1817-1821
AbstractThe influence of an external radial electric field (E-R) on electroosmosis in capillary electrophoresis was studied theoretically. Based on a Stern-like model, three basic equations were deduced, with only two unknown parameters of delta and psi(d) where delta is the distance between the flowing shear interface and the tube wall, while psi(d) is the potential at the starting point of diffuse layer. The new equations reveal that, to effectively regulate the electroosmosis at E-R <3 X 10(8) V/m, buffer pH should be kept below 5. In a common case of E-R <10(8) V/m, the buffer pH should be below 4, otherwise the flow direction of the electroosmosis cannot be reversed. A way to increase the working pH range lies in the use of chemically coated rather than bare tubes. As expected, small capillaries and low ionic strength are preferred.
KeywordElectroosmosis External Radial Field Control Theory
Indexed ByISTP ; SCI
Language英语
WOS IDWOS:000081688800002
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74808
Collection中国科学院化学研究所
Corresponding AuthorChen, Y
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Chen, Y,Zhu, Y. Theoretical examination of electroosmosis control with external radial electric field in capillary electrophoresis[J]. ELECTROPHORESIS,1999,20(9):1817-1821.
APA Chen, Y,&Zhu, Y.(1999).Theoretical examination of electroosmosis control with external radial electric field in capillary electrophoresis.ELECTROPHORESIS,20(9),1817-1821.
MLA Chen, Y,et al."Theoretical examination of electroosmosis control with external radial electric field in capillary electrophoresis".ELECTROPHORESIS 20.9(1999):1817-1821.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Y]'s Articles
[Zhu, Y]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Y]'s Articles
[Zhu, Y]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Y]'s Articles
[Zhu, Y]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.