Progress in the determination of metalloids and non-metals by means of high-resolution continuum source atomic or molecular absorption spectrometry. A critical review

Abstract

This work examines the new possibilities introduced with the arrival of commercially available high-resolution continuum source atomic absorption spectrometers for the determination of metalloids (B, Si, Ge, As, Se, Sb and Te) and non-metals (P, S, F, Cl, Br, I and N-based species), such as the improved potential to detect and correct for spectral overlaps and the strategies available to correct for matrix effects. In particular, and considering the increasing number of papers reporting on the use of molecular absorption spectrometry using graphite furnaces and flames as vaporizers, the work discusses in detail the advantages and limitations derived from the monitoring of molecular spectra from a practical point of view, in an attempt to guide future users of the technique.

Chlorine isotope determination via the monitoring of the AlCl molecule by high-resolution continuum source graphite furnace molecular absorption spectrometry – a case study

“…The resulting technique, high-resolution continuum source graphite furnace molecular atomic spectrometry (HR CS GFMAS) opens new ways to determine non-metals, [34][35][36] for which it is hardly feasible to get access to their main atomic lines because they are located in the vacuum UV. The resulting technique, high-resolution continuum source graphite furnace molecular atomic spectrometry (HR CS GFMAS) opens new ways to determine non-metals, [34][35][36] for which it is hardly feasible to get access to their main atomic lines because they are located in the vacuum UV.…”

Liquid-phase microextraction combined with graphite furnace atomic absorption spectrometry: A review

“…To sum up, HR-CS-GFAAS seems to be a more flexible technique than the classic instrumentation with better limits of detection, significantly better background and spectral interferences correction system than conventional GFAAS. Several reviews focused on HR-CS-GFAAS are available in the literature for interesting readers [145][146][147][148][149].The combination of LPME-HR-CS-GFAAS has been performed in few recent publications. Concretely, they involved the preconcentration of Cd from vegetable oils by UA-SDME [37], Cr from effluents and water sources by DLLME-SFO [67] and Pt from geological samples and spent automobile converter by DSDME [150] prior to HR-CS-GFAAS.…”

Determination of palladium, platinum and rhodium in used automobile catalysts and active pharmaceutical ingredients using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis

“…Moreover, the introduction of high-resolution continuum source (HR CS) GFAAS instrumentation has represented an important step forward for this technique, significantly improving its potential to overcome spectral interferences, to adjust the sensitivity to the sample content, and even permitting to determine several analytes simultaneously, in some circumstances [23][24][25][26][27][28]. Despite these possibilities, HR CS GFAAS has not been used for the direct determination of PGMs, with only one exception (determination of Pd in airborne particulates [29]).…”