“…Column chromatography by Kolesnikov et al (231,232) revealed that n-heptane was present in the essential oil of all representative species of the family Pinaceae. This was further confirmed by thin-layer chromatography.…”
“…Column chromatography by Kolesnikov et al (231,232) revealed that n-heptane was present in the essential oil of all representative species of the family Pinaceae. This was further confirmed by thin-layer chromatography.…”
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