晶体管振荡器的压电晶体在电解质溶液中的频移特性及其化学应用

Frequency Property of Piezoelectric Crystal in Solutions with a Transistorized Oscillator and Its Chemical Applications

野村等曾报告压电晶体在KCl溶液中的频移(至2mm)。对于电解质溶液中压电晶体振荡规律的定量研究,未见文献报道。本文采用晶体管振荡电路,研究了石英压电晶体在电解质溶液中的频移特性与规律。发现:晶体频移与溶液电解质浓度有线性关系,其斜率与电解质种类无显著的依赖关系.

Solution properties of the piezoelectric quartz crystal were studied using a transistorized oscillator.Frequency shift increases linearly with the increasing electrolyte concentration with a slope which is common for the electrolyte salts.Grounding the detection cell,it results’in a wider linearity range.A new frequency shift method has been developed for rapid determination of total electrolyte concentration in natural waters.