Study on preparation of high-purity natural d-borneol.
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SYF Song YongFang, LJL Luo JiaLiang
2003
cabidigitallibrary.org
Crude d-borneol was obtained by water vapour distillation and sublimation from leaves of Cinnamomum glanduliferum. In order to prepare high-purity d-borneol, experiments were carried out to investigate the effects of different solvent, solvent amount, times of crystallization and crystallizing time. High-purity d-borneol was analysed by GC and GC/MS, and crystal of d-borneol was examined by scanning electron microscopy (SEM). Results showed that petroleum was the best solvent for crystallizing d-borneol, purity of d-borneol …
