Analytical chemistry

Spring Changes In The Chemical Composition Of Eutrophicated Water Bodies, On The Example Of Lake Kapustikha In Muravyov Park For Sustainable Nature Use And Environmental Education

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Research article

Sunyaikina Y. V.

DOI:

https://doi.org/10.60797/IRJ.2026.163.71

EDN:

GBGJGX

Suggested:

15.09.2025

Accepted:

25.12.2025

Published:

23.01.2026

Issue: № 1 (163), 2026

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

458

Determination of the mass fraction of elements in PUROLITE C160 ion exchange resin using X-ray fluorescence analysis

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Research article

Ulanova O. D.

Bunkov G. M.

DOI:

https://doi.org/10.60797/IRJ.2025.160s.36

EDN:

LZCOKQ

Suggested:

24.08.2025

Accepted:

24.08.2025

Published:

24.10.2025

Issue: № 10 (160) S, 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

679

Creation of certified mixtures of substances for chemical analysis of diatomite and vanadium catalysts

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Research article

Shikhaleeva M. A.

DOI:

https://doi.org/10.60797/IRJ.2025.160s.24

EDN:

JTTRWJ

Suggested:

10.08.2025

Accepted:

10.08.2025

Published:

24.10.2025

Issue: № 10 (160) S, 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

529

Comparative analysis of the quantitative composition of excipients of the drug Bisoprolol

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Data paper

Repin N. N.

DOI:

https://doi.org/10.60797/IRJ.2025.154.63

EDN:

GDZWGQ

Suggested:

04.03.2025

Accepted:

10.04.2025

Published:

17.04.2025

Issue: № 4 (154), 2025

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

1104

Comparative analysis of spectrophotometric and atomic absorption methods for the determination of total iron in archaeological finds of bog ore

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Research article

Tyurin S.

Belousova M.

DOI:

https://doi.org/10.60797/IRJ.2024.146.139

EDN:

MBOWLD

Suggested:

01.07.2024

Accepted:

01.08.2024

Published:

16.08.2024

Issue: № 8 (146), 2024

Rightholder: authors. License: Attribution 4.0 International (CC BY 4.0)

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