Simultaneous preconcentration and penta-elemental speciation analysis of Cr, As, Cd, Hg, and Pb by online solid-phase extraction and high-performance liquid chromatography–inductively coupled plasma mass spectrometry

Key Points

• Effective detection of chromium, arsenic, cadmium, mercury, and lead occurs through advanced elemental analysis.
• High-performance liquid chromatography paired with inductively coupled plasma mass spectrometry demonstrates sensitivity for detecting trace levels.
• The method includes simultaneous preconcentration and solid-phase extraction for enhanced accuracy in speciation analysis.
• Highlighting the importance of this analysis in environmental monitoring may encourage stronger regulations on toxic element exposure.