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Clinical Chemistry 25: 1795-1798, 1979;
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Clinical Chemistry, Vol 25, 1795-1798, Copyright © 1979 by American Association for Clinical Chemistry

Comparison of two micromethods for determination of lipoprotein cholesterol in plasma

IR Kupke, S Zeugner and A Gottschalk

We compared the results obtained by a micromethod for the determination of plasma lipoprotein cholesterol, in which electrophoresis is used to separate the lipoprotein fractions (beta-, pre-beta-, and alpha- lipoproteins), with those determinations with ultracentrifugation (low- density, very-low-density, and high-density lipoproteins). Precision of determination (coefficient of variation, CV, %) was the same for beta- and low-density lipoproteins (1.6%), and for pre-beta- and very-low- density lipoproteins (3.7%); however, determination of alpha- lipoprotein cholesterol was more precise (1.4%) than that of high- density lipoprotein cholesterol (3.1%). Analytical recovery of lipoprotein cholesterol was the same for both methods (98--100%) and the results were closely correlated (r = 0.943). The procedure has been used to determine the cholesterol content of plasma lipoprotein fractions of apparently healthy adults (both sexes). Lipoprotein cholesterol concentrations in our population sample compare well with those reported for other groups of similar age, in particular Stanford long-distance runners.




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Copyright © 1979 by the American Association for Clinical Chemistry.