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- Metabolic profiling of Piper species by direct analysis using real time mass spectrometry combined with principal component analysis. Preeti Chandra, Vikas Bajpai, Mukesh Srivastva, K. B. Ramesh Kumar, Brijesh Kumar
, Anal. Methods
, 2014
, 6
, 4234
- Alkaloids analysis using off-line two-dimensional supercritical fluid chromatography × ultra-high performance liquid chromatography. Kuiyong Li, Qing Fu, Huaxia Xin, Yanxiong Ke, Yu Jin, Xinmiao Liang
, Analyst
, 2014
, 139
, 3577
- Purification of amide
alkaloids from Piper longum L. using preparative two-dimensional normal-phase liquid chromatography × reversed-phase liquid chromatography. Kuiyong Li, Wenya Zhu, Qing Fu, Yanxiong Ke, Yu Jin, Xinmiao Liang
, Analyst
, 2013
, 138
, 3313