A method is described for the determination of formaldehyde in river water as its 2,4-dinitrophenylhydrazone using high-performance liquid chromatography with ultraviolet detection. The method has a detection limit of 5.6 µg l–1.
P. J. Whittle and P. J. Rennie, Analyst, 1988, 113, 665 DOI: 10.1039/AN9881300665
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