Neng, N R Determination of glyoxal and methylglyoxal in environmental and biological matrices by stir bar sorptive extraction with in-situ derivatization. [electronic resource] - Journal of chromatography. A Oct 2007 - 47-52 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 0021-9673 Standard No.: 10.1016/j.chroma.2007.08.060 doi Subjects--Topical Terms: 2-Naphthylamine--analogs & derivativesAdsorptionBeer--analysisChemical Fractionation--methodsChromatography, High Pressure Liquid--instrumentationEnvironmental Monitoring--methodsFeasibility StudiesFood Contamination--analysisFresh Water--analysisGlyoxal--isolation & purificationPyruvaldehyde--isolation & purificationReproducibility of ResultsSensitivity and SpecificitySolid Phase Extraction--methodsUrine--chemistryWater Pollutants, Chemical--analysisWater Supply--analysis