Patent ID: 8906638

Claim:
A method for quantifying remnant-like lipoprotein cholesterol in a sample containing different lipoproteins including the remnant-like lipoprotein, said method comprising: step (1) decomposing cholesterol in lipoproteins in the sample except for cholesterol in the remnant-like lipoprotein by decomposing the cholesterol to make it undetectable in step (2); and step (2) quantifying cholesterol in the remaining remnant-like lipoprotein, wherein said step (1) is carried out under an action of a cholesterol esterase having a molecular weight of more than 40 kDa and not having a subunit having a molecular weight of 40 kDa or less; and said step (2) is carried out under an action of a cholesterol esterase having a molecular weight of 40 kDa or less or a cholesterol esterase having a subunit having a molecular weight of 40 kDa or less.