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. Journal of Agriculture and Sustainable Rural Development, 2 (3-4). ISSN 2955-2257

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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 groundwater 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 the 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 to 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. Data analyses has improved the significant differences within the element contents and ratios as well between both geographical regions.

Item Type:	Article
Subjects:	Agricultural Sciences > Agriculture, forestry, and fisheries Natural sciences > Chemical sciences Natural sciences > Earth and related environmental sciences Agricultural Sciences > Other agricultural sciences
Divisions:	Faculty of Agriculture
Depositing User:	Biljana Balabanova
Date Deposited:	17 Sep 2024 08:30
Last Modified:	17 Sep 2024 08:30
URI:	https://eprints.ugd.edu.mk/id/eprint/34633

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