A simultaneous atomic absorption and emission spectrometer with dielectric barrier discharge for atomization and excitation

Abstract

A simultaneous atomic absortion and emission spectrometer (AAS and AES) was developed using dielectric barrier discharge (DBD) microplasma for atomization and excitaion. The feasibility of the simulatenous measurement scheme was...

Highly sensitive determination of arsenic in water samples by hydrogen-doped solution anode glow discharge-optical emission spectrometry

“…We speculate that the significant enhancement of the signal intensity was mainly caused by the significant enhancement of the vapor generation process of As. A recent report investigated plasma characteristics in pure and mixed gas, 53 in which it was proved that the rotational temperature and excitation temperature increased slightly, whereas the electron density increased significantly. Therefore, the enhancement of the As signal is likely mainly related to the significant increase of electron density, although the increase of excitation temperature also plays some role.…”

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…An LOD of 0.3 μg L −1 was obtained for Cd under optimised conditions. The same group published a second paper 79 using the same DBD system in combination with a simultaneous AAS and OES spectrometer . However, in the paper they observed no apparent enhancement in Hg AAS signal on the addition of H 2 or N 2 into both Ar and He carrier gases, and a marked decrease in OES signal was observed.…”