Study on electrochemical kinetics of matrine and sophoridine in a physiological medium / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 1836-1839, 2005.
Article
in Zh
| WPRIM
| ID: wpr-287275
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the kinetic processes of direct electrooxidation for both matrine and sophoridine in a physiological medium.</p><p><b>METHOD</b>Their direct electrooxidative behaviors and the parameters of electrochemical kinetics were obtained by cyclic voltammetry (CV), bulk electrolysis with coulometry, chronocoulometry (CC), chronoamperometry (CA).</p><p><b>RESULT AND CONCLUSION</b>The electrochemical experimental results show that the two totally irreversible oxidation peaks in the region of 0.3-1.2 V vs SCE for both MT and SR were observed, and the electrode reactions processes were diffusion-controlled. Their electron transfer number n and electron transfer coefficient alpha were obtained by CV and electrolysis with coulometry. The diffusion coefficient D and rate constant kf were also calculated by CC and CA.</p>
Full text:
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Index:
WPRIM
Main subject:
Oxidation-Reduction
/
Plants, Medicinal
/
Quinolizines
/
Kinetics
/
Chemistry
/
Sophora
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Electrochemistry
/
Electrodes
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Alkaloids
/
Methods
Language:
Zh
Journal:
China Journal of Chinese Materia Medica
Year:
2005
Type:
Article