Mark L. Powell

Bioanalytical Method Validation—A Revisit with a Decade of Progress

Vinod P. Shah, Kamal K. Midha, John W. A. Findlay et al. · Pharmaceutical Research · 2000 · 1.6K citations

Direct-injection LC–MS–MS method for high-throughput simultaneous quantitation of simvastatin and simvastatin acid in human plasma

Mohammed Jemal, Zheng Ouyang, Mark L. Powell · Journal of Pharmaceutical and Biomedical Analysis · 2000 · 112 citations

Direct-injection Lc–ms–ms Method, Engineering, Medicine +11

Ternary-column system for high-throughput direct-injection bioanalysis by liquid chromatography/tandem mass spectrometry

Yuanqing Xia, Daisy B. Whigan, Mark L. Powell et al. · Rapid Communications in Mass Spectrometry · 2000 · 53 citations

Biological Mass Spectrometry, Direct Injection, Separation Science +20

Relative merits of two methods of sample introduction in inductively coupled plasma mass spectrometry: electrothermal vaporisation and direct sample insertion

G.E.M. Hall, Jean‐Claude Pelchat, Dave W. Boomer et al. · Journal of Analytical Atomic Spectrometry · 1988 · 51 citations

Engineering, Biological Mass Spectrometry, Sample Introduction +23

Direct injection versus liquid-liquid extraction for plasma sample analysis by high performance liquid chromatography with tandem mass spectrometry

Mohammed Jemal, Mike Huang, Xiaohui Jiang et al. · Rapid Communications in Mass Spectrometry · 1999 · 49 citations

Plasma Sample, Direct Injection, Separation Science +17