2 results about "Middle molecular weight" patented technology

The invention discloses a mixed polypeptide analysis method, which uses a volume exclusion chromatographic column in a mixed mode, carries out separation by combining the hydrophobicity difference of samples on the basis of a common volume exclusion chromatographic column, and can effectively solve the problem that the common volume exclusion chromatographic column is difficult to effectively separate samples with small molecular weight difference. Especially, different polypeptide components with similar molecular weights in the mixed polypeptide can be effectively separated, the steps are simple and easy to operate, and rapid and efficient analysis of the components of the mixed polypeptide can be realized without connecting other analysis methods in series.

Processes and apparatuses for reducing molecular weight fluctuation in a tail gas stream from a pressure swing adsorption process. Multiple PSA separation zone are synchronized such that when one of the PSA units is generating a low molecular weight tail gas, there is another PSA unit generating a high molecular weight tail gas.