Process and reagent for specifically determining LDL in specimens from serum

摘要

The invention relates to a process and reagent for the specific determination of the LDL fraction in the presence of other lipoproteins in the serum by adding a polymeric LDL-aggregating polyanion and measuring the LDL aggregate by direct turbidimetry. Preferred polyanions have a comb-like structure where the side branches comprise acidic groups, especially branched alkanesulphonic acids.