The feasibility of using a simple radiochemical method to determine the extent of formylation resulting from interaction of formic acid solutions with soil constituents was investigated. The interaction between formic acid-14C solvents and starch was used as a model reaction. Radioassay of 1 cm3 formic acid solution by liquid scintillation counting in 10 cm3 of the scintillator-solubilizer Insta-gel was found to be suitable. The method is simple to use and sample preparation is easy.
- formic acid
- Soil organic matter