Determination of serum apolipoproteins A1 and B by immunoturbidimetry using the Cobas-Bio centrifugal analyzer. Influence of hyperlipemia

The authors describe an immunoturbidimetric technique for the determination of the serum apolipoproteins A1 and B using a Cobas-Bio centrifugal analyser. This methods is sensitive and reproducible (CV less than 5%) and show a good correlation with electroimmunodiffusion which was taken as method of reference. It may be applied to serum stored at 4 degrees C or frozen at -20 degrees C. No light is transmitted in the case of either turbid hyperlipemic sera or sera extensively icteric or hemolyzed. The physiological values found in a large population of men and women of various ages are in agreement with those reported in the literature. The method described thus provides a suitable means of investigation adapted to large series for screening for coronary disease states.