Study of the possibilities of determining mobile sulfur by physical-chemical and chemical methods in various substrates in the presence of orthanilic K

Svetlana Lokhanina; Katerina Sorokina

doi:10.54517/aas.v5i2.2921

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Asia Pacific Academy of Science Pte. Ltd. (APACSCI) specializes in international journal publishing. APACSCI adopts the open access publishing model and provides an important communication bridge for academic groups whose interest fields include engineering, technology, medicine, computer, mathematics, agriculture and forestry, and environment.

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Study of the possibilities of determining mobile sulfur by physical-chemical and chemical methods in various substrates in the presence of orthanilic K

Svetlana Lokhanina, Katerina Sorokina

Article ID: 2921
Vol 5, Issue 2, 2024

DOI: https://doi.org/10.54517/aas.v5i2.2921

Received: 2 September 2024; Accepted: 24 September 2024; Available online: 30 September 2024; Issue release: 31 December 2024

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Abstract

The article presents the results of testing the developed method for determining mobile sulfur in wood ash and various soil substrates. Determination of sulfur in sulfate form in presence of orthanilic K is possible due to the indicator’s ability to form coloured complexes with Ba²⁺ ion. We examined the ranges of volumetric and photometric determination. The accuracy of the analysis was determined by comparison with a certified method. We present optimal conditions for the successful determination of the mobile sulfur with the titration and with spectrophotometric method. The results of experiments confirming the capabilities of the method under study are presented.