| 摘要 |
PROBLEM TO BE SOLVED: To provide a cell respiratory activity evaluation method and its device capable of evaluating metabolic activities such as respiratory activity or photosynthetic activity in a sample solution including a biosample such as a cell, by measuring a local oxygen concentration change near the sample solution. SOLUTION: The sample solution A is set in a capillary tube 1, and an oxygen permeable film 2 is arranged on an capillary tube opening, and the tube is dipped in a measuring solution B. A micro-electrode 6 is installed near the capillary tube opening, and a reference electrode 7 and a counter electrode 8 corresponding to the micro-electrode 6 are arranged. The micro-electrode 6 is used as a working electrode, and potential control and current detection are executed between the reference electrode 7 and the counter electrode 8. The micro-volume sample solution A is prepared, and three-dimensional position control of the capillary tube 1 is executed, and the oxygen concentration in the sample is selectively evaluated by a reduction current. |
