A syringe for surface tension measurements at constant temperature期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

A syringe for surface tension measurements at constant temperature

Affiliation:	1. Department of Radiology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA;2. Department of Radiology, University of Alabama – Birmingham, JTN 358; 619 S 19th Street South, Birmingham, AL 35294, USA;1. Department of Biology, Faculty of Science, Autonomous University of Madrid, Spain;2. Division of Endocrinology, Metabolism, and Diabetes, CU Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, United States;3. Unit of Physical Anthropology, Department of Biodiversity, Ecology, and Evolution, Faculty of Biological Sciences, Complutense University of Madrid, Spain;4. EPINUT Research Group (reference 920325), Faculty of Medicine, Complutense University of Madrid, Spain

Abstract:	The drop volume method can give precise results for the surface tension of liquids if a certain number of precautions are taken. One of the most important is the temperature control. A drop volume syringe fitted with a jacket is described; water at constant temperature circulates in the jacket. The syringe is introduced in a brass chamber and the whole system immersed in a thermostat. The closed chamber eliminates evaporation and allows the surface tension to be determined in an inert atmosphere.

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