Patent ID: 8624599

Claim:
An analysis system for the analysis of a sample, the system comprising: a gel permeation chromatograph having a gel permeation chromatography (=GPC) separating column system filled with porous particles, said separating column system having at least one GPC separating column, wherein GPC separating columns of said GPC separating column system have an overall combined internal volume of at least 45 cm 3 or of at least 100 cm 3 ; and a nuclear magnetic resonance (=NMR) spectrometer coupled to said chromatograph, said NMR spectrometer being configured as a low-field NMR spectrometer having a permanent magnet system for generating a B 0 field of said NMR spectrometer, wherein said low-field NMR spectrometer comprises a shim system with which a homogeneity of said B 0 field of at least 0.5 ppm or of at least 0.1 ppm is achieved in a right circular cylindrical sample volume having a diameter of at least 5 mm and a length of at least 15 mm, said low-field NMR spectrometer further comprising a lock device to compensate for a drift of said B 0 field.