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Evaluation of viscosity and surface tension of low-volume samples using glass capillary

机译：使用玻璃毛细管评估低体积样品的粘度和表面张力

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摘要

In this paper, methods for measuring the viscosity and surface tension of low-volume liquid samples are proposed. Viscosity is measured by recording the motion of a liquid driven by surface tension through a horizontal glass capillary tube. Surface tension is determined by connecting a container of a constant volume to the distal end of the capillary tube and measuring the penetration distance of the liquid entering via the proximal end. Sucrose solutions of various concentrations (0-50 wt%) were measured as samples, and the determined viscosities were confirmed to be consistent with the tabulated values provided in the Handbook of Chemistry. The surface tension was found to be constant within the measurement sensitivity of the device regardless of the sucrose concentration.
机译：在本文中，提出了测量低体积液体样品的粘度和表面张力的方法。通过通过水平玻璃毛细管记录由表面张力驱动的液体的运动来测量粘度。通过将恒定体积的容器连接到毛细管的远端并测量通过近端进入的液体的穿透距离来确定表面张力。测量各种浓度的蔗糖溶液（0-50wt％）作为样品，并确认确定的粘度与化学手册中提供的表格值一致。无论蔗糖浓度如何，都发现表面张力在装置的测量灵敏度内恒定。

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