SurPASS streaming potential measurement

SurPASS 流电势测量

• 批准号: 423095-2012
• 负责人: Xu, Zhenghe
• 金额: $ 6.68万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=495889
• 关键词: SurPASS; streaming; potential; measurement

Charges of solid surfaces in an aqueous fluid play a critical role in many different scientific and engineering disciplines, ranging from life sciences to environmental protection, waste treatment, food processing and materials engineering. The accurate measurement of surface charge is therefore of great scientific and technical importance. Although surface charge of small particles can be measured accurately by a number of instruments available in our laboratory, the measurement of surface charge for coarse particles or flat surfaces requires a very different instrument, known as streaming potential analyzer. This proposal is to request for a streaming potential analyzer (SurPASS) with necessary accessories by Anton Paar Canada. The SurPASS with different measuring cells provides an accurate and reliable means to measure surface charge characteristics of macroscopic solid particles and flat surfaces using streaming potential principle.

在许多不同的科学和工程学科中，从生命科学到环境保护、废物处理、食品加工和材料工程，固体表面的电荷在许多不同的科学和工程学科中都扮演着重要的角色。因此，表面电荷的准确测量具有重要的科学和技术意义。虽然我们实验室的一些仪器可以准确地测量小颗粒的表面电荷，但测量粗颗粒或平坦表面的表面电荷需要一种非常不同的仪器，称为流动电位仪。本提案要求加拿大Anton Paar公司提供一台带有必要附件的流动电势分析仪(BecPass)。不同测量单元的超越为利用流动电势原理测量宏观固体颗粒和平板表面电荷特性提供了一种准确可靠的手段。