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author:

Chen, Ying (Chen, Ying.) [1] (Scholars:陈颖) | Xu, Liangjun (Xu, Liangjun.) [2] (Scholars:徐两军) | Lin, Jinming (Lin, Jinming.) [3] | Chen, Guionan (Chen, Guionan.) [4] (Scholars:陈国南)

Indexed by:

Scopus SCIE

Abstract:

A CE with LIF detection was developed for separation and determination of bradykinin (BK)-related peptides, such as BK, kallidin (Kal), and neurokinin A (NKA). BK-related peptides were derivatized with FITC prior to CE-LIF analysis. Sodium borate 10 mmol/L at pH 9.5 was selected as derivatization media in order to get the high efficiency. Three peptides were baseline-separated within 10 min by using 110 mmol/L sodium borate-sodium hydroxide solution at pH 10.0 as the running buffer. Concentration detection limits (S/N = 3) for BK, Kal, and NKA were 0.08, 0.5, and 0.2 nmol/L, respectively. Meanwhile we have also developed a simple, quick, and sensitive large-volume sample stacking (LVSS) technique for CE-LIF detection of BK, Kal, and NKA. By using this stacking technique, the detection limits (S/N = 3) for BK, Kal, and NKA were 0.02, 0.05, and 0.04 nmol/L, respectively. This method has been applied to the assay of human saliva and cerebrospinal fluid with satisfactory results.

Keyword:

bradykinin-related peptides fluorescein isothiocyanate large-volume sample stacking laser-induced fluorescence

Community:

  • [ 1 ] [Chen, Ying]Fuzhou Univ, Dept Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Lin, Jinming]Fuzhou Univ, Dept Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Chen, Guionan]Fuzhou Univ, Dept Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Chen, Ying]Fuzhou Univ, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Lin, Jinming]Fuzhou Univ, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Chen, Ying]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:

  • 陈国南

    [Chen, Guionan]Fuzhou Univ, Dept Chem, Fuzhou 350002, Fujian, Peoples R China

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Source :

ELECTROPHORESIS

ISSN: 0173-0835

Year: 2008

Issue: 6

Volume: 29

Page: 1302-1307

3 . 5 0 9

JCR@2008

3 . 0 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 22

SCOPUS Cited Count: 22

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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