Jordi Labs has recently developed a novel packing material for GPC systems. This c
To maximize GPC resolution, the key is to use a column containing the maximum number of pores of the desired size to separate the molecular weight range of interest. New generation individual pore size Jordi Resolve columns 5 μm (7.8 mm ID x 300 mm L) provide high resolution in the specific molecular weight ranges given in Table 1.
The linear part of each calibration curve defines the molecular weight range of each individual porosity column. To cover a wider range of molecular weight with a constant resolution for the analysis of polydisperse or unknown materials, Jordi Labs designed the mixed bed Resolve column 5 μm (7.8 mm ID x 300 mm L). Mixed bed Resolve columns allows separation over the molecular weight range from 200 to 3,000,000 g/mol (PS equivalent) with a coefficient of determination (R2) of 0.999, as shown in Figure 2, and an industry leading specification of 70,000
For higher molecular weights, Jordi Labs offers its Jordi Resolve DVB 13 μm columns. New generation Jordi Resolve columns (7.8 mm x 300 mm) are produced to allow separation over the molecular weight range from 500 to 12,000,000 g/mol (PS equivalent). Polyolefins often have broad molecular weight ranges characterized by high polydispersity values. Jordi Labs has developed mixed bed columns especially for these broad distribution samples which were designed by blending a large number of individual pore size packing materials.