Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan.
Electrophoresis. 2024 Apr;45(7-8):706-711. doi: 10.1002/elps.202300153. Epub 2023 Aug 31.
A general theory is presented for the transient dynamic electrophoresis of a spherical colloidal particle in an electrolyte solution under a suddenly applied oscillating electric field. An approximate analytic expression is derived for the transient dynamic electrophoretic mobility, which is applicable for low particle zeta potentials and arbitrary Debye length. It is found that the electrophoretic mobility shows a damped oscillation, approaching its final value, unlike the case where a step electric field is applied.
本文提出了一种在电解质溶液中球形胶体颗粒在外加瞬态振荡电场作用下的电泳动力学的一般理论。推导出了在低颗粒zeta 电位和任意德拜长度情况下瞬态电泳迁移率的近似解析表达式。结果表明，电泳迁移率表现为阻尼振荡，逐渐趋近于其最终值，与施加阶跃电场的情况不同。
