A simple online phase separator for the microfluidic mass transfer studies

A simple online phase separator for the microfluidic mass transfer studies
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用于微流体传质研究的简单在线相分离器

DOI:
10.1016/j.cej.2017.05.056
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发表时间:
2017-10
影响因子:
15.1
通讯作者:
Luo Guangsheng
Luo Guangsheng
中科院分区:
工程技术1区
文献类型:
--
作者:
Liu Di;Wang Kai;Wang Yue;Wang Yundong;Luo Guangsheng

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开发了一种由疏水T型连接器和亲水针头组成的简单相分离器,用于微流控萃取研究。基于流体选择性润湿性的相分离器具有非常小的体积和几乎为零的连续相滞留。易于在实验室中组装、清洁和维修。在150 ~ 1500 μL/min的操作流速范围内,四种典型的萃取体系(界面张力为49.6 ~ 1.68mN/m)均能在该相分离器中工作。传质实验表明,该相分离器的传质系数比重力相分离器的传质系数更准确。该相分离器具有很强的应用潜力,可用于管式微流控装置的传质动力学研究。
A simple phase separator consisting of a hydrophobic T-connector and a hydrophilic needle was developed for microfluidic extraction studies. The phase separator based on the selective wettability of fluids has a very small volume and nearly zero hold-up of the continuous phase. It is easy to assemble, clean and repair in the laboratory. Four classical extraction systems with interfacial tensions ranging from 49.6 to 1.68 mN/m worked well in this phase separator over operating flow rates ranging from 150 and 1500 μL/min. Mass transfer experiments showed that the measured mass transfer coefficients from the new phase separator were more accurate than the data from the gravity phase separator. This phase separator has strong potential to be used in the kinetic study of mass transfer in tubular microfluidic device.
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