METHOD FOR CHOLESTEROL CONTENT DETERMINATION IN BLOOD SERUM BY DYNAMIC SURFACE TENSION RESULTS Russian patent published in 2018 - IPC G01N33/48 

FIELD: medicine.

SUBSTANCE: dynamic surface tension of a 1-3 ml blood serum sample is measured on a tensiometer operating by the principle of maximum pressure in the vial, the cholesterol content ([Cholesterol], mmol/l) is determined from the obtained dynamic surface tension values using the regression-correlation analysis formulas [Cholesterol]=0.25σ₁-0.22σ₂-0.1λ₀+0.12λ₁+0.71, where σ₁ [mN/m] is the surface tension at t=0.02 seconds, σ₂ [mN/m] is the surface tension at t=1 second, λ₀ [mN/m⋅s^1/2] is the angle of inclination of the initial section of the curve in the coordinates σ/(t^1/2). λ₁ [mN/m⋅s^-1/2] is the angle of inclination of the final section of the curve in the coordinates σ/(t^-1/2).

EFFECT: increased accuracy of determination.

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