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Differential sound velocity apparatus for the investigation of protein solutions
Abstract
A differential method for the measurement of sound velocity in solutions is described. The instrument uses two identical acoustic resonators and a newly developed electronic measuring system. The sound velocity is determined with a relative accuracy of ≈3×10-6 over the entire frequency range 0.5-10 MHz. The instrument has been used to determine the compressibility of protein solutions and to study their velocity dispersion.
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