Patent ID: 7906001

Claim:
A method for separating by free solution capillary electrophoresis, at alkaline pH protein constituents selected from the group consisting of albumin and α 1 -, α 2 -, β- (or β 1 - and β 2 -) and γ-globulin fractions from lipoprotein constituents in a sample comprising: (a) introducing a sample into a capillary tube containing an analysis buffer, said analysis buffer comprising at least one anionic surfactant additive that hydrophobically interacts with said lipoprotein constituents and modifies the electrophoretic mobility with respect to said protein constituents, wherein said at least one anionic surfactant additive in said analysis buffer has a concentration in the range of 0.001 mM to less than 0.1 mM; (b) passing said sample through said capillary tube; and (c) separating said protein constituents and said lipoprotein constituents by electrophoresis.