Ultrasonic Measurements with Milliliter Liquid Samples in the 0.5–100 MHz Range

Abstract

A resonator and a pulse method for relative ultrasonic absorption measurements in liquids from about 0.5 to 100 MHz are described and discussed. Due to the small sample volumes needed (around 1 ml) both techniques are suitable for relaxational studies on fast biochemical reactions. Cells are described, which have been operated with aqueous and organic media in a temperature range from − 10 to 80 °C.