Sample/standard preparation for HPLC

HA Hadil Alaydi
PD Peter Downey
MM Michelle McKeon-Bennett
TB Tanya Beletskaya
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Solvent and SFE-CO2 extracts were evaporated to dryness under a stream of nitrogen and reconstitute in 5 ml hexane and filtered through 0.20 μm filter before HPLC analysis. Two sets of polyprenol standard mixtures, quantitative mixture of C70–C100 prenologues (P-14 to P-20) and quantitative mixture of C80–C125 prenologues (P-16 to P-25) were used for the HPLC analysis, provided by LGC in liquid form at a concentration of 5 mg/0.5 ml hexane, serial dilutions were prepared.

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