7Alebic-Kolbah T, Hirsl-Starcevic S. Determination of piracetam in serum by gas chromatography [J]. Chromatogr Biomed Appl, 1990, 526(2):556-561.
8Mascher H, Kikuta C. Rapid method for the sensitive determination of piracetam in plasma by high-performance liquid chromatography [J]. Journal of Pharmaceutical & Biomedical Analysis, 1989, 7(7):913-916.
9Robert M N, Marc F K, William J O' Brien, et al. Liquid-chromatographic quantification of piracetam [J].Clin Chem, 1983, 29(4):664 - 666.
10Louchehi K, Tod M, Bonnardel P. Determination of piracetam in human plasma and urine by liquid chromatography [J]. J Chromatogr B Biomed App, 1995,663 (2): 385-389.
