Turbulent flow bioanalysis in drug metabolism and pharmacokinetics

Turbulent flow chromatography (TFC) as an analytical technique was introduced in the mid-1990s for online sample processing in bioanalysis. Turbulent flow columns are packed with large particles permitting the use of high mobile phase linear velocities. Solute molecules travel in a uniform concentrated band in which large matrix biomolecules are effectively separated from lower molecular weight analytes by differential mass transfer effects. In addition, the use of various bonded stationary phases enhances selectivity in TFC separations. Originally, the turbulent flow column was used for both online sample processing and the analytical separation. This mode of operation has largely been replaced...

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