[Determination of the high density lipoprotein (HDL) cholesterol in blood serum. Comparison of 3 methods: ultracentrifugation and precipitations (author's transl)].

Three methods of assaying the high density lipoprotein cholesterol were applied simultaneously to a hundred of human sera: ultracentrifugation, precipitation by concavalin A and phosphotungstic acid. The obtained results were compared by statistical means: it was shown that the three procedures were equivalent. Some of their analytical features are discussed.