Quantification of mixtures of C2 and C3 hydroxy acids and products of glycerol oxidation by high‐performancelLiquid chromatography and quantitative 13 C NMR

lndoor air quality is a major public health issue. lt is related to the choice of construction materials and associated with VOC emissions. Two wood-based commercial panels were tested: a medium-density fiberboard (MDF) and a chipboard (CH), and they were compared to a material produced from a coriander biorefinery (COR). Indic ators chosen to compare the materials were physical properties (density, bending properties, surface hardness, thickness swelling, and water absorption) and VOC ernissions. Emissions were evaluated in an environmental chamber at 23 °C, 31 °C, and 36 °C, and during 28 days. Carbonyl ernissions on day 1 at 23 °C were 74, 146, and 35 μg m 2 h 1, respectively, for MDF, CH, and COR Tetpenic ernissions were 12, 185, and 37 μg m 2 h, respectively. Higher temperature resulted in higher ernissions which decreased over time, except for formaldehyde. VOC ernissions depended Iargely on material and temperature. Formaldehyde ernission was 300 to 600 times lower for coriander boards (< 0.2 μg m 2 h 1), making them significantly more environmentally friendly materials in comparison with MDF and chipboard. These results highlight as the major product, with oxalic acid, tartronic acid, and glyceric acid as by-products