“Non-traditional” stable isotopes applied to the study of trace metal contaminants in anthropized marine environments

Atomic spectrometry update – a review of advances in environmental analysis

“…A novel signal-enhancement strategy for LIBS analysis of soil combined 201 APGD and cylindrical (plasma) connement. The LODs of 2,31,21,35,49,67,43,20 and 18 mg kg −1 for Ba, Cu, Eu, La, Lu, Ni, Ti, Y and Yb, respectively, were signicantly better than the values (10,133,102,175,262,356,246,158 and 105 mg kg −1 , respectively) achievable using conventional LIBS. An alternative approach involved 202 addition of 15% KI to soil samples to increase plasma temperature and electron density.…”

“…A review (149 references) of the use of “non-traditional” stable isotope ratios in studies of the geochemical and ecotoxicological aspects of marine metal contamination included 102 the application of MC-ICP-MS to studies of contaminated marine environments. It was concluded that measurement of isotope ratios will detect changes caused by mankind and follow interactions with marine biota.…”

Lithium isotopes in marine food webs: Effect of ecological and environmental parameters

“…Recently, these questions have started to be investigated using non-traditional isotopes, e.g., Cu, Hg, Zn (e.g., Jaouen et al, 2016;Briant et al, 2019;Köbberich and Vance, 2019;Nitzsche et al, 2020). Stable isotopes of trace metals are emergently used as biomonitoring tools for tracing their sources (Kwon et al, 2015;Xu and Wang, 2017), pollution effects (Araújo et al, 2022;Ma et al, 2019;Bonsignore et al, 2020), physiological investigations (Balter and Vigier, 2014;Bolea-Fernandez et al, 2019;Manceau et al, 2021;Renedo et al, 2021;Queipo-Abad et al, 2022), species ecology (Martin et al, 2015;McCormack et al, 2022), and studying their modern and past biogeochemical cycles (Blum et al, 2013).…”

Isotopic compositions of copper and zinc in plankton from the Mediterranean Sea (MERITE-HIPPOCAMPE campaign): Tracing trophic transfer and geogenic inputs

“…The new generation of high-resolution mass spectrometers, such as the multi-collector inductively coupled plasma mass spectrometers (MC-ICP-MS), have allowed measuring accurately isotope compositions of trace metal in natural marine samples (Araújo et al, 2022a). Cu has two stable isotopes, 63 Cu and 65 Cu, with natural average abundances of 69.17 and 30.83%, respectively, while Zn has five stable isotopes, 64 Zn, 66 Zn, 67 Zn, 68 Zn, and 70 Zn, with natural average abundances of 48.63, 27.90, 4.10, 18.75, and 0.62%, respectively (Maréchal et al, 1999).…”

“…These changes in isotope ratios have proven useful in tracing sources and biogeochemical processes in hydrothermal systems (Larson et al, 2003;Rouxel et al, 2004;Maher and Larson, 2007), ore deposits (Graham et al, 2004;Mason et al, 2005;Lemaitre et al, 2020a) and open ocean (Conway and John, 2014;Conway et al, 2021). In coastal marine ecosystems, these isotopes have been relevant to track metal dispersion and to differentiate the type and nature of particles (natural versus anthropogenic, mineral versus organic) by river inputs or atmospheric deposition (Araújo et al, 2022a;b). However, the Cu and Zn isotopic fractionation related to planktonic organisms, colloids and the dissolved matrix in seawater is not yet clearly elucidated.…”