| 摘要 |
<p>An electrode system for use in a portable apparatus for measuring the electrochemical characteristics of a sample is disclosed. A disposable cartridge, including a plurality of interconnected flow chambers houses a printed circuit board substrate (44) upon which reference (40A) and indicating (40B) electrodes are formed. The electrodes are coated with a thin paste film (69) to aid in the electrochemical determination of a sample undergoing analysis. A thermal sensing element (42) is in close proximity to the electrodes to permit the correction of the measurement for variations in temperature. After a pH value has been determined, the used cartridge can be mechanically rejected thus eliminating user exposure to the blood sample being measured. In this way, the pH of a blood sample can be determined quickly, effectively, inexpensively and with a minimum amount of sample and reagant preparation.</p> |
