Talanta
Paper plate-assisted two-step - fractionation and speciation - for the evaluation of nickel and vanadium porphyrins via laser ablation inductively coupled plasma mass spectrometry.
Eduarda Q Machado, Bárbara B E Salles, Leandro W Hantao, Cleverson J F de Oliveira, Marco A Z Arruda
Published: 202610.1016/j.talanta.2025.128988
Abstract
This manuscript presents a novel two-step separation method for the fractionation and speciation of nickel (Ni) and vanadium (V) metalloporphyrins in light, medium, and heavy crude oil samples using a simple paper-based chromatographic platform (5 ×…
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