ABSTRACT
INTRODUCTION The high-frequency electrodeless lamps (HF EDL-s) are widely used as bright radiators of narrow and intensive spectral lines, covering the spectrum from vacuum-ultraviolet to infrared. HF EDL-s are applied in various scientific devices such as radiation and absorption spectrometers, spectrometers for angle and glass refractive index measurements, frequency standards, magnetometers [1]. The early works showed that the intensities of HF EDL emission lines are higher than ones for others sources, as example, hollow cathode lamps (HCL-s). However, such light sources have not been widely exploited some time because of technical difficulties, connected with the creation of high-frequency (HF) field, the lack of pure heavy noble gases and the necessity of pure filling elements. The use of EDL-s in atomic absorption devices was restricted mainly because of big dimensions and weight of HF generators. In the last time, the dimensions and weight of HF generators are decreasing; there is no problem to design the HF generator together with lamp in the dimensions smaller than hollow cathode lamp. Because of different new EDL preparation techniques also other HF EDL parameters (resource, intensity) are rising. This provoked new interest of HF EDL-s usage in atomic absorption analysis. In this paper we present our experience in preparation and investigation of new type HF EDL-s with different fillings (Cd, Zn, Hg, As, Te, Se, Pb, Sn, T1, Bi) for their use in atomic absorption spectrometry (AAS).
