New approaches in environmental analysis using graphite furnace atomic absorption spectrometry

New approaches in environmental analysis using graphite furnace atomic absorption spectrometry

Konferenční sborník (ne stať)

Atomic absorption spectrometry (AAS) is an analytical technique used for quantitative elemental analysis. Despite the availability of other analytical techniques, AAS still offers several advantages: high sensitivity, low detection limits, operational cost-effectiveness and small sample volume required. Furthermore, advanced AAS techniques are being progressively adopted for routine analyses. High-resolution continuum source atomic absorption spectrometry (HR-CS AAS) is a technique enabling both sequential and simultaneous analysis, utilizing a high-resolution monochromator and a solid-state detector. A high-pressure xenon lamp serves as the continuum radiation source, providing a spectrum of wavelengths in the range of 190–1000 nm. Detection is performed by a charge-coupled device (CCD) array, which captures the spectral area of the analytical line. Hence, it is possible to determine two or more elements simultaneously. Furthermore, HR-CS AAS is able to measure the molecular absorption spectra of diatomic molecules. This provides the possibility to determine non-metallic elements. The applicability of AAS is not restricted to liquid samples; it also extends to the introduction of suspensions and solid-phase materials. The aim of this study is to develop multielement methods for the determination of Fe, Ni, and Cd in environmental matrices, and to explore the applicability of solid sampling HR–CS AAS for the direct analysis.

Atomic absorption spectrometry (AAS) is an analytical technique used for quantitative elemental analysis. Despite the availability of other analytical techniques, AAS still offers several advantages: high sensitivity, low detection limits, operational cost-effectiveness and small sample volume required. Furthermore, advanced AAS techniques are being progressively adopted for routine analyses. High-resolution continuum source atomic absorption spectrometry (HR-CS AAS) is a technique enabling both sequential and simultaneous analysis, utilizing a high-resolution monochromator and a solid-state detector. A high-pressure xenon lamp serves as the continuum radiation source, providing a spectrum of wavelengths in the range of 190–1000 nm. Detection is performed by a charge-coupled device (CCD) array, which captures the spectral area of the analytical line. Hence, it is possible to determine two or more elements simultaneously. Furthermore, HR-CS AAS is able to measure the molecular absorption spectra of diatomic molecules. This provides the possibility to determine non-metallic elements. The applicability of AAS is not restricted to liquid samples; it also extends to the introduction of suspensions and solid-phase materials. The aim of this study is to develop multielement methods for the determination of Fe, Ni, and Cd in environmental matrices, and to explore the applicability of solid sampling HR–CS AAS for the direct analysis.

atomic absorption spectrometry, AAS, HR-CS AAS, multielement method, method development, simultaneous method, cadmium, nickel, iron

atomic absorption spectrometry, AAS, HR-CS AAS, multielement method, method development, simultaneous method, cadmium, nickel, iron

ŠACHROVÁ, S.; JURNEČKA, R.; KOMENDOVÁ, R.

26.11.2025

Fakulta chemickej a potravinárskej technológie

Bratislava

978-80-8208-162-9

2

https://zenodo.org/records/17647142