Method validation and geochemical modelling of chromium speciation in natural waters.

ABSTRACT: The study focuses on validating reference methods such as ICP-OES and ICP-MS for detecting ultra-trace levels of chromium in groundwater, where concentrations are typically very low. Additionally, it verifies a hyphenated technique, IC-ICP-MS, for determining naturally occurring Cr(VI) in tested waters. The validation process involved various chromium analysis variants, including isotopes ⁵²Cr and ⁵³Cr in ICP-MS and IC-ICP-MS techniques, along with specific emission lines in the ICP-OES technique. Statistical data processing revealed that the achieved limits of quantification for Cr in different techniques ranged from 0.053 µg/L to 1.3 µg/L, with the associated measurement uncertainty estimated between 14% and 19% (at a coverage factor k = 2, 95%). For speciation anal

SUBMITTER: Rusiniak P 

PROVIDER: S-EPMC11649762 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature