it's about understanding the principles that make those steps necessary
References to specific products, dosing schedules, or clinical protocols in this article are for informational and educational purposes only and do not constitute an endorsement of any specific treatment approach
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For the extraction, methanol and internal standards were added, followed by incubation for 15 min at 30C on a thermal shaker (650 rpm, TS1 ThermoShaker, Biometra, Gttingen, Germany), centrifugation (21,000 x g, 10 min, 4C, Heraeus Fresco 21 Centrifuge, Thermo Scientific, Schwerte, Germany), evaporation, and centrifugation with methanol again