sentences:  The valving and piping arrangements and the predetermined control of these allow switching at regular intervals the sample entry in one direction, the solvent entry in the same direction but at a different location in the continuous loop, whilst changing the "fast product" and "slow product" takeoff positions to also move in the same direction, but at different relative locations within the loop.Ref 3 explains that the advantage of the SMBC is high production rate, because a system could be near continuous, whilst its disadvantage is that it only performs one cut in mixtures.Thus, it is well-suited for separation of a binary mixture.