Direct Determination of Lead in Sea Water by High-Resolution Atomic Absorption Spectroscopy Using a Mixed Modifier Barium Nitrate–Hydrofluoric Acid
- Authors: Sobolev N.A.1, Ivanchenko N.L.1, Kozhevnikov A.Y.1
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Affiliations:
- Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
- Issue: Vol 74, No 5 (2019)
- Pages: 444-448
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183202
- DOI: https://doi.org/10.1134/S1061934819020126
- ID: 183202
Cite item
Abstract
A procedure is proposed for the direct determination of lead in sea water by electrothermal atomization high-resolution atomic absorption spectrometry. The effect of background interferences due to sea water matrix is eliminated using a mixed modifier barium nitrate–hydrofluoric acid. The optimum amount of the modifier matrix is 60 µg Ba (NO3)2 + 1.52 µg HF. The conditions of analysis are as follows: pyrolysis temperature 600°C, atomization temperature 1200°C. The limit of detection for the developed procedure is 0.0003 mg/L.
About the authors
N. A. Sobolev
Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
Email: a.kozhevnikov@narfu.ru
Russian Federation, Arkhangelsk, 163002
N. L. Ivanchenko
Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
Email: a.kozhevnikov@narfu.ru
Russian Federation, Arkhangelsk, 163002
A. Yu. Kozhevnikov
Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
Author for correspondence.
Email: a.kozhevnikov@narfu.ru
Russian Federation, Arkhangelsk, 163002