- High performance liquid chromatography apparatus and method for feeding a liquid to the high performance liquid chromatography apparatus -

摘要

With the high performance - liquid chromatography apparatus of the present invention, a similar separation effect is obtained as with a constant speed gradient elution method and in this case the measuring time is shortened. When a data processor (13) on the basis of the course of previously measured pressure values a converted by a constant pressure gradient, a in a pressure value curve - memory unit (13a) stored pressure value course file and selected on a display screen and a pressure value determined. A constant pressure gradient method - conversion unit (13b) converts a in a constant speed gradient method - memory unit (13c) stored constant speed gradient method in a constant pressure gradient method, and the the in the conversion resulting constant pressure gradient method are also indicated by corresponding numbers. The liquid feed section (5, 6) of a liquid feed pump (4), by means of a fleece speed - adjusting unit (13d) and a mixing ratio - adjusting unit (13e) according to the displayed on the display screen controlled constant pressure gradient method.