Determination of amide, urea, and nitrile compounds using alkali-fusion reaction gas chromatography

Measuring poly(acrylamide) flocculants in fresh water using inter-polymer complex formation

“…16 Spectrophotometrically it is possible to test a solution for amide and nitrile functionalities on the polymers. 28 However, the methods highlighted the requirement for high temperature fusion with a highly concentrated alkali, liberating the nitrogen as either ammonia or an organic amine, and the analysis of each sample took over half an hour. Oxidation of the amide functional groups with bromine can produce an iodide ion which can be detected after the excess bromine is removed.…”

Determination of Imides, Aromatic, Polyimides, Polyamides, and Poly (Amide-Imides) by Alkali Fusion Reaction Gas Chromatography

“…The application of this technique to nylon polymers made from aliphatic difunctional monomers has been previously reported (43). EXPERIMENTAL Fusion Reagent.…”

Determination of micromolar quantities of primary amides by flame emission spectrometry

“…These gas chromatographic methods all require a separate calibration curve for each amide assayed. Amides resistant to solution saponification have been assayed by reaction gas chromatography (14). In this procedure, solid potassium hydroxide is fused with the amide to liberate ammonia or the amine which is then determined by gas chromatography.…”