W. Herenda Sela’s research while affiliated with University of Brawijaya and other places

Erythrocyte quantity is one of the parameters of the physiological conditions. This case causes knowledge about the nature and amount of erythrocytes to be interesting objects of research. This paper discusses the detection of erythrocyte quantities using an interdigitated electrode by Electrical Impedance Spectroscopy (EIS) method. Impedance measurements performed by injecting a current of 10 µA in the frequency range of 100 Hz - 100 kHz. Measurement made at erythrocyte concentrations from 3.79 x 10⁴cell µL-¹ to 7.61 × 10⁶ cell µL⁻¹. The results show that increasing the number of erythrocytes will increase the impedance value exponentially. Increasing the quantity of erythrocytes can be observed well at frequencies above 1 kHz. The minimum detection limit for erythrocytes is 3.79 x 10⁴cell µL⁻¹.