This is a complete isocratic stand-along system with a high pressure solvent delivery pump, an UV/VIS detector, a manual injection valve,and solvent tray, a column and a Chromatography Workstation. This system enables you to choose different pump heads to finish work from analytical application to Semi-preparative application. Due to the internal HPG design, it is very convenient to expand this system up to quaternary high pressure gradient by add additional uniform pumps!