DBD在原子光谱领域内的应用进展

介质阻挡放电因其体积小、结构简单、能耗低、工作温度低、样品解离/激发能力强等显著特点,特别适合于分析仪器的微型化和便携化。目前,基于介质阻挡放电的原子化器或激发光源已成功应用于原子吸收光谱仪、原子荧光光谱仪和原子发射光谱仪中,促进了小型化原子光谱仪器的发展。总结了介质阻挡放电技术在原子光谱领域内的研究进展,着重阐述了介质阻挡放电-原子发射光谱系统在不同进样方式下的应用情况,分析了每种进样方式的优缺点。本文还对介质阻挡放电技术在诱导蒸气发生、固体直接进样方面的新应用方向进行了评述。虽然介质阻挡放电技术已在原子光谱领域内得到广泛的应用,但其反应机理仍然不明确,制约了其后续的拓展研究。

Recent Progress at Atomic Spectrum Field for DBD Research and Development

Because of its small volume,simple structure,low energy consumption,low working temperature,strong ability of sample dissociation/excitation and other significant characteristics,the dielectric barrier discharge is especially suitable for the miniaturization and portable analytical instruments.By now,atomizer or excitation source based on dielectric barrier discharge has applied in atomic absorption spectrometer,atomic fluorescence spectrometer and atomic emission spectrometer successfully, which promoted the development of miniaturization atomic spectrum instrument.This paper reviews DBD’s recent progress in a-tomic spectrum field,emphatically introduces the applications of the DBD-AFS system in different sampling modes and analyses, along with their respective merits and demerits.This paper also introduces the new applications of DBD in vapor generation and direct solid sampling.Due to the DBD’s reaction mechanism is still unclear;the study of its subsequent development may be re-stricted.