基于单皮升液滴和原位电化学测量的液-液分配研究。

A study on liquid-liquid distribution based on single picoliter droplets and in situ electrochemical measurements.

作者信息

Nakatani K, Sudo M, Kitamura N

机构信息

Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Japan.

出版信息

Anal Chem. 2000 Jan 15;72(2):339-42. doi: 10.1021/ac981297a.

DOI:10.1021/ac981297a

PMID:10658328

Abstract

A microelectrode technique combined with the microcapillary injection/manipulation of a single organic droplet in water was developed. The technique was applied to the study of the distribution of a ferrocene derivative across a single-picoliter-nitrobenzene-droplet/water interface and to the simultaneous in situ electrochemical determination of the distributed solute in the picomole-femtomole range. The liquid-liquid distribution processes were discussed in terms of droplet size and solute concentration (in water) dependencies of the interfacial mass transfer rate.

摘要

开发了一种将微电极技术与微毛细管注射/操控水中单个有机液滴相结合的技术。该技术被应用于研究二茂铁衍生物在单皮升硝基苯液滴/水界面上的分布，并用于同时原位电化学测定皮摩尔至飞摩尔范围内的分布溶质。根据液滴大小和溶质浓度（水中）对界面传质速率的依赖性，对液-液分布过程进行了讨论。