PUMPING SYSTEM FOR CHROMATOGRAPHY APPLICATIONS

摘要

A pumping system for compressible fluids comprises a first pump (20) having a first pump outlet (21) and a second pump (30) having a second pump outlet (31), wherein the first pump outlet (21) and the second pump outlet (31) merge in a junction (40) which is in fluid communication with a main outlet (48). The pumping system further comprises a control (50) to regulate the output pressure (p2) of the second pump (30) on the basis of a measurement of the output pressure (p1) of the first pump (20). The corresponding method of operating a pumping system is also disclosed.