ELECTROCHEMICAL METHOD AND DEVICES USABLE FOR DETERMINING CONCENTRATION OF SUBSTANCES UNDER STUDY WITH CORRECTION ON HEMATOCRIT NUMBER Russian patent published in 2005 - IPC

FIELD: medicine.

SUBSTANCE: method involves introducing physiologic sample into measuring instrument having electrochemical cell with working electrode and comparison electrode. The first electric potential is applied to the cell and the current flowing through the cell is measured during the first time period for determining the first time-current transition characteristic. Then, the second electric potential is applied to the cell for determining the second time-current transition characteristic. Then, preliminary concentration of the substances under study is calculated from the first and/or the second time-current transition characteristics. The preliminary concentration value with background value being subtracted is multiplied by correction coefficient for determining concentration of substance under study in the sample.

EFFECT: minimized analytical error caused by hematocrit number.

9 cl, 1 dwg