Quo vadishigh-resolution continuum source atomic/molecular absorption spectrometry?

Abstract

After more than a decade since its commercial introduction, high-resolution continuum source atomic/molecular absorption spectrometry may be facing a mid-life crisis.

Preparation of MnO2 modified magnetic graphitic carbon nitride composite and its adsorption toward Pb(II) in waste water

“…Batch of sorption experiments were displayed to optimize the correlative factor of MMCN material for Pb(II) adsorption. The values of adsorption capacity were calculated by ultraviolet spectrophotometer according to colorimetric theory (Resano et al 2019). Therefore, the adsorption quantity of MMCN for Pb(II) was calculated by Equation ( 3):…”

Breaking the boundaries in spectrometry. Molecular analysis with atomic spectrometric techniques

“…Instead, the reader is referred to the review of Welz et al already mentioned above for early works [4], to reviews [65] and [66], and finally to review [5] for the most updated information (last five years). In the particular case of sulfur determination, there is another review available [67].…”

“…F is an exception, as it is an element that can be determined with great sensitivity via HR CS GF MAS, while it is very complex to determine it using other atomic techniques [75]. Therefore, it is one of the non-metals most often determined using HR CS MAS [5].…”

“…As a result, their main atomic absorption/emission lines fall in the vacuum ultraviolet (VUV) region, difficulting their determination by optical techniques, while the high ionization potential, in combination with the occurrence of spectral overlap, hampers their determination by inductively coupled plasma mass spectrometry (ICP-MS). However, it will be discussed in this review how the generation and measurement of molecules or of polyatomic ions containing the analyte may result in significant improvements for trace determination of these elements by means of these techniques [4,5].…”

Introducing multi-energy ratios as an alternative to multi-energy calibration for Br determination via high-resolution continuum source graphite furnace molecular absorption spectrometry. A case study

“…Generally, the vaporization process is often not as straightforward as a pure atomization process mostly based on temperature, and the presence of many other species may result in the formation of other compounds different from the targeted one. 27,28 Interestingly, while commercially available HR CS AAS instrumentation offers the potential to monitor only a narrow part of the spectrum simultaneously, which affects the multi-element possibilities of the technique, 29,30 when molecular species are measured different rotational or vibrational transitions superimposed to the electronic transitions are monitored, 31,32 and the resolution of the instrumentation is often sufficient to resolve such transitions. In other words, when HR CS MAS is used, often many lines can be fully simultaneously monitored, which can make MEC an ideal strategy to minimize matrix effects as well as to increase sample throughput.…”