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. 2018 May 2;23(5):1065. doi: 10.3390/molecules23051065

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Separation of 16 active pharmaceutical ingredients. Xbridge BEH Shield RP18 column (50 × 4.6 mm i.d., 2.5 µm). Gradient elution of ethanol from 5% to 80% (slope of 2.57%/min) with acetate buffer 20 mM at pH 4.85. Flow rate: 0.8 mL/min. Temperature: 33.7 °C. Detection at 210 nm. Peak identification: 1 = paracetamol; 2 = doxylamine; 3 = ondansetron; 4 = melatonin; 5 = quinine; 6 = metopimazine; 7 = domperidone; 8 = pravastatin; 9 = ketoprofen; 10 = rosuvastatin; 11 = midazolam; 12 = diclofenac; 13 = atorvastatin; 14 = fluvastatin; 15 = artemether; and 16 = simvastatin. Similar to Reference [54].