【摘 要】
：
The stepwise motion of molecules interacting with a chromatographic surface can be tracked theoretically and experimentally.Simulation of affinity capillary
【机 构】
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IowaStateUniversityandHunanUniversity
【出 处】
：
2016年分析化学前沿国际研讨会及中美分析化学研讨会
论文部分内容阅读
The stepwise motion of molecules interacting with a chromatographic surface can be tracked theoretically and experimentally.Simulation of affinity capillary electrophoresis,which is controlled by solution equilibrium vs.wall adsorption,by dividing the electrolyte into thin radial zones accurately predicts the experimental band shapes.Superlocalization microscopy is used to follow submicron motions of single particles at video frame rates.In the strong adsorption regime,particles can be seen spending more time near the surface than in the bulk.Even in the case of weak adsorption,when the particle distributions appear to be identical at the surface and in the bulk,analysis of the magnitude and the directon of the individual steps can reveal subtle wall interactions.For longitudinal motion in a cylindrical channel,correlation analysis of single particle locations can be used to extract diffusion coefficients.
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