Application of high performance liquid chromatography with fluorescence detection to determination of ampicillin in plasma deproteinized by the phenol method Nakagawa, H.; Nishiyama, K.; Higashitani, T.; Ishikawa, S.; Fukui, Y. Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan 105(11): 1096-1099 1985 https://eurekamag.com/research/068/590/068590280.php