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研制了一种适用于ICP光源用的新型超声波雾化器。其特点是:在耦合介质中有选择地将压电晶片辐射的超声纵波模式变成板波模式,利用这种波的频散特性,使其有效地透过声耦合板,并用高频封闭技术,将超声能量集中于需要分析的少量样液之中,使其比纵波法更强烈地雾化。本文把GPW型超声波雾化器与ICP光源耦合使用,对被测元素的检出限、灵敏度、再现性、组份影响、记忆效应等进行了考察
A new type of ultrasonic atomizer for ICP light source was developed. Its characteristics are: in the coupling medium selectively piezoelectric piezoelectric wafer radiation longitudinal wave mode into a plate wave mode, the use of this wave dispersion characteristics to make it effectively through the acoustic coupling plate, and closed with high-frequency technology , The ultrasonic energy is concentrated in the need to analyze a small amount of sample solution, making it more intense than the longitudinal wave method of atomization. In this paper, the GPW ultrasonic nebulizer coupled with the ICP light source used to detect the detection limit of the element, sensitivity, reproducibility, component effects, memory effects were investigated