liquid chromatography system two-dimensional liquid chromatography system MS:1003598 A system for two-dimensional liquid chromatography (2D-LC), also often referred to as LC-LC or LC×LC, an advanced analytical technique that combines two different liquid chromatography methods in series to achieve enhanced separation of complex mixtures. It offers significantly higher resolving power and peak capacity compared to conventional one-dimensional liquid chromatography (1D-LC). MS