| 摘要 |
The present invention relates to a method that involves collecting a sample of biological liquid, placing the same in a cell (1) for analysis, supplying a current through the cell from a frequency- and amplitude-adjustable generator (2) and measuring the conductivity Y1. The method also involves using a biological-liquid reference (12) through which a current is supplied at the same amplitude and frequency before measuring its conductivity Yr. The method further involves calculating a value N1 = Y1 / Yr and the biological object is in a normal condition when N1 < 1, whereas a potential disease is diagnosed when N1 > 1. The device of the present invention comprises an analysis cell (1) having a generator (2) connected thereto and also includes a differential amplifier (3), a detector (4) and a measuring unit (5) connected in series. The differential amplifier (3) includes first and second current summing inputs (6, 7) and the generator (2) is connected to the first summing input (6) of said differential amplifier (3). An amplifier (8) is also provided and has first and second current summing inputs (9, 10), while an electrode (13) is connected to the second summing input (7) of the differential amplifier (3) and is capable of three-dimensional displacement so as to be brought into contact with the biological liquid in the analysis cell (1) and with the reference (12). The detector (4) is connected to the measuring unit (5) through the first summing input (9) of the added amplifier (8), while a voltage regulator (11) is connected thereto through the second summing input (10) of said amplifier (8).
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