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author:

Chen, Ying (Chen, Ying.) [1] (Scholars:陈颖) | Zhang, Lan (Zhang, Lan.) [2] (Scholars:张兰) | Xu, Liangjun (Xu, Liangjun.) [3] (Scholars:徐两军) | Lin, Jin-Ming (Lin, Jin-Ming.) [4] | Chen, Guonan (Chen, Guonan.) [5] (Scholars:陈国南)

Indexed by:

Scopus SCIE

Abstract:

A CE with LIF detection was developed for the separation and determination of three bradykinin (BK) metabolites: BK2-9, BK1-7 and BK1-5. BK fragments were derivatized with 5-(4, 6-dichloro-s-triazin-2-ylamino) fluorescein before CE-LIF analysis. Eighty millimolar of Tris-H3PO4 (pH 9.0) was selected as the derivatization media. Three BK fragments were baseline separated within 10 min by using 0.2 M TAPS-Tris buffer (pH 8.5) as the running buffer. Meanwhile we have also developed a simple, quick, and sensitive on-column transient ITP preconcentration for CE-LIF detection of three BK fragments. Ten millimolar of Tris-HCl (pH 9.0) was chosen as the leading electrolyte and 0.2 M TAPS-Tris (pH 8.5) containing 10 mM 1-butyl-3-methylimidazolium tetrafluoroborate as the terminating electrolyte and also served as the running buffer during CZE separation. By using this transient ITP coupled with CE-LIF, concentration detection limits (S/N= 3) for BK2-9, BK1-7 and BK1-5 were 0.3, 0.1 and 0.1 pmol/L, respectively. This method has been applied to the assay of human saliva and plasma samples with satisfactory results.

Keyword:

Bradykinin fragments CE LIF Transient ITP

Community:

  • [ 1 ] [Chen, Ying]Fuzhou Univ, Dept Chem, Minist Educ Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Zhang, Lan]Fuzhou Univ, Dept Chem, Minist Educ Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Lin, Jin-Ming]Fuzhou Univ, Dept Chem, Minist Educ Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Chen, Guonan]Fuzhou Univ, Dept Chem, Minist Educ Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Chen, Ying]Fuzhou Univ, Analyt & Testing Ctr, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Zhang, Lan]Fuzhou Univ, Analyt & Testing Ctr, Fuzhou 350002, Fujian, Peoples R China
  • [ 7 ] [Xu, Liangjun]Fuzhou Univ, Analyt & Testing Ctr, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 张兰

    [Zhang, Lan]Fuzhou Univ, Dept Chem, Minist Educ Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Fujian, Peoples R China

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Source :

ELECTROPHORESIS

ISSN: 0173-0835

Year: 2009

Issue: 13

Volume: 30

Page: 2300-2306

3 . 0 7 7

JCR@2009

3 . 0 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 13

SCOPUS Cited Count: 13

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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