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- W2503043120 abstract "Lignocellulose naturally contains formaldehyde, and generates much more when heated. A simple quantitation of such biogenic formaldehyde is desirable for the analysis and utilization of lignocellulose. Heretofore, a boiling toluene extraction (the perforator method) was the best known technique to determine biogenic formaldehyde in wood. Described here is a simple milligram-scale water extraction that avoids specimen heating. This method was validated by comparison to a laborious extraction using poly(allylamine), PAA, beads that strongly sorb formaldehyde. The PAA-based extraction and the water-only extraction were found to be effectively equivalent, recovering about 94% of wood formaldehyde. The incomplete formaldehyde recovery is offset by experimental simplicity, and suitability for large sampling. For instance, the new method was applied to the analysis of tree increment cores; formaldehyde levels measured in never-heated Pinus virginiana ranged from 1 to 5 μg/g dry wood, and were comparable to published values using the perforator method. Heating at 200° for 10 min generated about 10–20 times more biogenic formaldehyde. This simple extraction is useful to document biogenic formaldehyde levels in wood, and the formaldehyde generation potential associated with heating, as in the manufacture of wood-based composites." @default.
- W2503043120 created "2016-08-23" @default.
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- W2503043120 date "2016-08-12" @default.
- W2503043120 modified "2023-10-06" @default.
- W2503043120 title "Simple Milligram-Scale Extraction of Formaldehyde from Wood" @default.
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- W2503043120 doi "https://doi.org/10.1021/acssuschemeng.6b01477" @default.
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