Hematocrit and hemoglobin detection using capacitance

A method of determining hematocrit or hemoglobin concentration of a blood sample includes calculating a complex capacitance at a predetermined imaginary value based on a plurality of complex capacitance values of the blood sample, each of the plurality of complex capacitance values of the blood sample having a corresponding frequency; and determining a hematocrit or hemoglobin concentration based on the calculated complex capacitance or a real part of the calculated complex capacitance. 确定血液样本的血细胞比容或血红蛋白浓度的方法包括：基于血液样本的多个复电容值来计算预定虚部值处的复电容，血液样本的多个复电容值中的每一个具有对应频率；和基于计算的复电容或计算的复电容的实部来确定血细胞比容或血红蛋白浓度。