The highly accurate process employed by the VAP(tm) Test, which separates lighter portions of lipoprotein from heavier portions using centrifugal force in order to measure cholesterol subclasses. During ultracentrifugation, the two density layers contained in the sample blend to form a continuous density gradient, and the lipoproteins present in the serum sample float toward the top of the tube and stop at their characteristic density.
MS = Centrifugation with a centrifuge that develops centrifugal fields of more than 100,000 times gravity. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) AN = an anal chem technique; GEN or unspecified; prefer specifics; NIM UI = D014461