SCANNING ELECTROCHEMICAL DETECTION IN CAPILLARY ELECTROPHORESIS

被引：14

作者：

FERRIS, SS ^{[1
]}

LOU, G ^{[1
]}

EWING, AG ^{[1
]}

机构：

[1] PENN STATE UNIV,DAVEY LAB 152,UNIV PK,PA 16802

来源：

JOURNAL OF MICROCOLUMN SEPARATIONS | 1994年 / 6卷 / 03期

关键词：

CAPILLARY ELECTROPHORESIS; SCANNING ELECTROCHEMICAL DETECTION; VOLTAMMETRIC DETECTION; CATECHOLAMINES; PEPTIDES;

D O I：

10.1002/mcs.1220060311

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Scanning electrochemical detection has been combined with capillary electrophoresis to increase the resolving power for closely eluting solutes. This detection mode has been characterized and provides voltammetric information for easily oxidized solutes with linear detection over concentrations in the 10(-3) to 10(-5) M range. Detection limits for catechols range from 360 amol to 740 amol (2.3 muM to 6.6 muM concentrations). Finally, two neutral solutes, catechol and tryptophan, co-elute under zone electrophoresis conditions, but are resolved with scanning detection.

引用

页码：263 / 268

页数：6

共 18 条

[1] CAUDILL WL, 1983, ANAL CHEM, V53, P1877
[2] ELECTROCHEMICAL DETECTION FOR CAPILLARY ELECTROPHORESIS
CURRY, PD
ENGSTROMSILVERMAN, CE
EWING, AG
[J]. ELECTROANALYSIS, 1991, 3 (07) : 587 - 596
[3] COMPUTER-ASSISTED RAPID-SCAN CYCLIC STAIRCASE VOLTAMMETRY IN NORMAL-PHASE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY
GUNASINGHAM, H
TAY, BT
ANG, KP
[J]. ANALYTICAL CHEMISTRY, 1987, 59 (02) : 262 - 266
[4] ELECTROCHEMICAL DETECTORS IN HPLC AND ION CHROMATOGRAPHY
HORVAI, G
PUNGOR, E
[J]. CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY, 1989, 21 (01) : 1 - 28
[5] HUBBARD AT, 1970, ELECTROANALYTICAL CH, V4
[6] LIQUID-CHROMATOGRAPHY WITH PULSED ELECTROCHEMICAL DETECTION AT GOLD AND PLATINUM-ELECTRODES
JOHNSON, DC
LACOURSE, WR
[J]. ANALYTICAL CHEMISTRY, 1990, 62 (10) : A589 - A597
[7] SWEPT-POTENTIAL OXIDATIVE DETECTION IN FLOW STREAMS
OWENS, DS
JOHNSON, CM
STURROCK, PE
JARAMILLO, A
[J]. ANALYTICA CHIMICA ACTA, 1987, 197 : 249 - 256
[8] DETERMINATION OF TRIAZINE PESTICIDES BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH SWEPT-POTENTIAL ELECTROCHEMICAL DETECTION
OWENS, DS
STURROCK, PE
[J]. ANALYTICA CHIMICA ACTA, 1986, 188 : 269 - 274
[9] PLOGEMAKERS HHJ, 1985, ANAL CHIM ACTA, V174, P71
[10] A SWEPT-POTENTIAL ELECTROCHEMICAL DETECTOR FOR FLOW STREAMS
REARDON, PA
OBRIEN, GE
STURROCK, PE
[J]. ANALYTICA CHIMICA ACTA, 1984, 162 (AUG) : 175 - 187

← 1 2 →