Computer optimization of the rp hplc separation of some taxoids from yew extracts
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Drylab G software has been used to optimize the reversed-phase HPLC separation of taxoids and co-extracted substances from yew. Two preliminary runs based on a linear gradient from 5 to 100% acetonitrile (ACN) in 20 or 60 min were shown to be satisfactory for optimization of resolution. The optimization experiments were performed on a purified extract fortified with taxoid standards. The identity and purity of the peaks were verified by use of photodiode-array detection. Agreement between simulated and experimental data was good. The optimized chromatographic system can be used for quantitative analysis of paclitaxel, cephalomannine, and 10-deacetylbaccatin in yew extracts.
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