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- Title
Voltammetric Analysis of Cadmium and Lead (Undesirable Elements) in Brine, Supported by Solid Phase Extraction – the Right Solution of the Analytical Challenge.
- Authors
Drwal, Krzysztof; Górska, Zuzanna; Bończak, Patrycja; Krasnodębska‐Ostręga, Beata
- Abstract
The stripping voltammetry at HMDE is proposed for Cd and Pb (undesirable ingredients) determination in the natural brine (CCl >43 g L−1). Samples with so high salinity have to be significantly diluted. For ICP MS, a 105–6 times dilution is required, which disqualifies this method. The proposed procedure allows to determine Cd (0.001 μg L−1) and Pb (0.005 μg L−1) after only 100 times dilution. The thermal chloride stripping or isolation by Chelex 100 increase the quality of obtained data. The recovery study was performed. The LOQs are below recommendations related to the use of brines in balneology.
- Subjects
SOLID phase extraction; LEAD; VOLTAMMETRY; SALT; ANALYTICAL solutions; CADMIUM; ARTIFICIAL seawater
- Publication
Electroanalysis, 2023, Vol 35, Issue 5, p1
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.202200397