In recent years, in the course of pharmaceuticals purified, as the need to chiral purification decreased since the improving of the asymmetric synthetic techniques, the desire to make medicine effective yet with a smaller number of doses and promised safety has raised
Theanine is a neurologically active amino acid found in tea plants. L-Theanine is a dominant amino acid in green tea and is responsible for its unique pleasant taste as well as known relaxation effect.
Scientists employ fused silica capillary tubing routinely in a wide range of analytical applications, encompassing GC, CE, capillary LC, and CEC. It has proven as an ideal substrate for interfacing in hyphenated techniques.
Polar neurotransmitters are difficult to retain using ODS columns. In this work we show two different methods to retain these polar analytes on the multi-mode Scherzo SS-C18 column. The versatility in retention characteristics with simple changes in mobile phase is highlighted.