This study details the development of a novel HPLC-ICPMS method for the rapid and accurate measurement of chromium species (Chromium (III) and Chromium (VI)) in various water sources. The method achieves detection limits of 10 ppt within an analysis time of less than 8 minutes, meeting stringent regulations for drinking water quality worldwide.

Key issues related to the interconversion of chromium species during sampling, extraction, storage, and analysis are thoroughly addressed. The extraction efficiency is significantly influenced by the matrix type, presenting challenges that are critical to the methodology. The innovative coupling of HPLC with ICP-MS facilitates lower limits of detection (LODs) for multiple chromium species, demonstrating its effectiveness for regulated products.

The importance of method validation is emphasized, as it is essential for ensuring the accuracy and reliability of results. Adherence to ISO Standard 24384:2024 enhances data traceability and validity, thereby reinforcing the credibility of the findings. Accurate speciation analysis is vital for assessing the potential risks associated with chromium in water, which has significant implications for environmental and public health.

In summary, this study presents a reliable, efficient, and standardized method for chromium speciation analysis, contributing to regulatory compliance and environmental monitoring efforts.