KOÇAK E, KAPLAN O, ÇELEBİER M, . Liquid-liquid extraction and ultrafiltration based sample preparation technique for Q-TOF LC/MS analysis of non-polar metabolites in human plasma samples. J.Res.Pharm. 2020;  24(1):  038-043. http://dx.doi.org/10.35333/jrp.2020.111