Vacuum pyrolysis of wood

Table I. Yields and Mass Balances for Vacuum Pyrolysis of Wood...

The sequential elution chromatographic technique has been found particularly helpful in separating whole oil produced by vacuum pyrolysis of wood into chemically distinguishable fractions. More than 30 of the P.C.U. oil that eluted first (FI to Fll) could bo analysed by GC and GC-M.S with less unambiguity. 

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