Gas-Evolving Headspace Technique toward Highly-Efficient Vanadium Pentoxide Quantification

This investigation established an innovative gas-evolving headspace technique for determining vanadium pentoxide. The methodology capitalizes on quantitative CO 2 measurement via GC where the target analyte undergoes redox transformation with oxalic acid under acidic conditions within a sealed vial system. Experimental validation confirmed the technique's robust performance characteristics, exhibiting excellent measurement reproducibility and satisfactory spike recovery rates across validation samples. This automated headspace GC approach presents significant advantages for industrial-scale analysis of vanadium pentoxide products. Moreover, this novel method offers a template for developing indirect quantifications via gas-evolving headspace analysis.