Spectroscopic methods for isotope analysis of heavy metal atoms: A review

Source and Migration Pathways of Heavy Metals in Soils from an Iron Mine in Baotou City, China

“…Additionally, the current research on isotope fractionation of contaminants is also in its early stages. Therefore, accurate tracing of all heavy metals using isotopes may not be feasible [39,40]. The geochemical speciation of heavy metals can also be used to identify the source of heavy metals.…”

Laser Ablation Saturated Absorption Spectroscopy (LA-SAS) for In Situ Detection of Neodymium Isotopes

“…The constructed system could successfully mitigate the line broadening while providing an intense signal. However, this fluorescence feature is contributed by atoms at all velocities, resulting in a superimposed Doppler absorbing background . In contrast, saturated absorption spectroscopy (SAS) represents a more targeted approach to eliminate Doppler broadening by adopting counter-propagated pump–probe beams .…”

“…Two-photon spectroscopy could be a viable alternative to cancel out the Doppler effect. − A recent study by Miyabe et al established the optical configuration employing resonance-enhanced two-photon spectroscopy to observe fluorescence for calcium isotope analysis. The constructed system could successfully mitigate the line broadening while providing an intense signal.…”

Simultaneous quantification of trace heavy metals in mushrooms using a three-dimensional highly reduced graphene oxide/Fe 3O 4 nanocomposite-based electrochemical sensor

“…However, their growth process makes them susceptible to the accumulation of heavy metals from the environment, which can have detrimental effects on human health, such as osteoporosis, rickets, and dwarfism [1][2][3] . Various conventional analytical techniques, including atomic absorption spectrometry (AAS) [4][5][6] , inductively coupled plasma-optical emission spectrometry (ICP-OES) [7,8] , and ICP-MASS spectrometry [9] , are commonly employed for the detection and quantification of heavy metal ions. Although these analytical methods possess remarkable stability, precision, and low detection limits, their lack of universalization and portability is attributed to the bulky and costly instruments employed.…”