Год выпуска: 2012 Автор: Nofrizal Syamsudin,Afidah Abdul Rahim and Bahruddin Saad Издательство: LAP Lambert Academic Publishing Страниц: 164 ISBN: 9783847373902
Описание
The inhibitive action of commercial green tea extracts on mild steel (MS) in a 1.0 M hydrochloric acid solution was investigated by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). A high-performance liquid chromatographic (HPLC) analysis showed conclusively that of the eight catechin monomers and caffeine found in the original extracts, only four components were responsible for the inhibition of MS. The decreasing adsorption capacity of monomers on MS is related to the stereochemistry of molecules and the number of phenolic groups, and it is as follows: epigallocatechin gallate
