Chemometric evidence for Sr and Rb isotopes due to the specific soil chemistry in different geographical regions

Balabanova, Biljana and Fan, Liping (2024) Chemometric evidence for Sr and Rb isotopes due to the specific soil chemistry in different geographical regions. In: International Congress on Natural, Health Sciences and Technology, 15-17 May 2023, Tetovo.

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Abstract

Strontium and rubidium are the commonly used metals for isotope-ratio analysis. Moreover, this geochemical marker varies between different rock types and formations. The 87Sr/86Sr ratio has been shown to vary widely in surface rocks, so any Sr released into soils, rivers, and groundwaters has an isotopic signature that reflects its source. Sr and Rb isotopes have also been used to trace agricultural products, which have incorporated Sr, along with Ca, from soils incorporating the Sr-isotope ratios of the underlying rocks.
The specific conditions in the soil represent characteristic conditions of the environment which is reflected in a certain way in the plants. Despite uncertainty about the organic compounds in a sample, the content of selected elements (trace and rare earth elements, REEs) reflects the growing conditions in the environment. For that instance, in the present research we will give focus on the inorganic compounds’ identifications, due to the more stable response to the lithogenic nature of the soil-plant interaction.
For the present study, the target isotopes were 88Sr, 87Sr, 86Sr and 85Rb. The isotope analysis was conducted with application of ICP-MS, following the protocol provided in the EPA METHOD 6020. In the validation process, no significant interference occurred that could affect the sensitivity of the measurement of the selected isotopes. Data analysis has been applied within the comparative issues between Sr and Rb content in soil from North Macedonia and selected regions in China. Moreover, the same chemometric model was applied for data analysis for selected plant species for both regions.

Item Type:	Conference or Workshop Item (Poster)
Subjects:	Agricultural Sciences > Agriculture, forestry, and fisheries Natural sciences > Chemical sciences Natural sciences > Earth and related environmental sciences
Divisions:	Faculty of Agriculture
Depositing User:	Biljana Balabanova
Date Deposited:	20 May 2024 12:17
Last Modified:	20 May 2024 12:17
URI:	https://eprints.ugd.edu.mk/id/eprint/34110

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