A simple capillary electrophoresis with electrochemical detection method for determination of the hydrolysis rate constant of chlorogenic acid

Talanta ◽  
2009 ◽  
Vol 77 (5) ◽  
pp. 1790-1794 ◽  
Author(s):  
P TONG ◽  
L ZHANG ◽  
Y HE ◽  
Y CHI ◽  
G CHEN
Keyword(s):  
Capillary Electrophoresis ◽  
Chlorogenic Acid ◽  
Electrochemical Detection ◽  
Rate Constant ◽  
Detection Method ◽  
Hydrolysis Rate ◽  
Hydrolysis Rate Constant

Determination of Polyphenols in Lycopus lucidus Turcz by Capillary Electrophoresis with Electrochemical Detection

2013 ◽  
Vol 750-752 ◽  
pp. 1613-1616
Author(s):  
You Yuan Peng
Keyword(s):  
Capillary Electrophoresis ◽  
Chlorogenic Acid ◽  
Electrochemical Detection ◽  
Detection Limits ◽  
Borate Buffer ◽  
Wall Jet ◽  
Disk Electrode ◽  
Optimum Conditions ◽  
Lycopus Lucidus

A method based on capillary electrophoresis with electrochemical detection was developed for the determination of polyphenols inLycopus LucidusTurcz. Operated in a wall-jet configuration, a 300 μm diameter carbon-disk electrode was used as the working electrode. Under the optimum conditions, the targeted analytes, i.e. rutin, chlorogenic acid, apigenin, luteolin and quercetin were baseline separated within 25 min in a 60mmol/L borate buffer (pH 9.0). Notably, excellent linearity was obtained over three orders of magnitude with detection limits (S/N=3) ranging from 1×10-7g/mL to 1×10-6g/mL for all analytes.

Determination of Bioactive Components inPolygonum perfoliatumL. by Capillary Electrophoresis with Electrochemical Detection

2009 ◽  
Vol 27 (4) ◽  
pp. 773-776 ◽  
Author(s):  
Shuping JIN ◽  
Xifeng GUO ◽  
Yinyan ZHANG ◽  
Ping LI ◽  
Pingang HE ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Electrochemical Detection ◽  
Bioactive Components
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