Department of Chemistry, Shahid Bahonar University of Kerman, P.O. Box 76175-133, Kerman, Iran.
Analyst. 2011 Feb 7;136(3):545-9. doi: 10.1039/c0an00593b. Epub 2010 Nov 16.
An electroactive self-assembled monolayer was fabricated by covalent attachment of protocatechuic acid at a gold surface and its electrochemical behavior was investigated using cyclic voltammetry. The modification involves a three-step method: (i) preparation of a cysteamine self-assembled monolayer, (ii) activation of the carboxylic groups of protocatechuic acid in solution and (iii) modification of cysteamine self-assembled monolayers by activated protocatechuic acid to functionalize the self-assembled monolayer by catechol-terminated groups. This resulting thin film modified electrode was tested successfully for the electrocatalytic determination of dopamine in aqueous solution.
通过将原儿茶酸共价附着在金表面上制备了一种电活性自组装单层，并使用循环伏安法研究了其电化学行为。该修饰涉及三步法：（i）制备半胱胺自组装单层，（ii）在溶液中激活原儿茶酸的羧酸基团，以及（iii）通过激活的原儿茶酸修饰半胱胺自组装单层，以将功能化的自组装单层通过邻苯二酚末端基团。成功地将所得的薄膜修饰电极用于在水溶液中电催化测定多巴胺。
