| 摘要 |
PURPOSE:To compensate the influence of the adsorption of protein and the potential difference between the remaining solns. by adding a material which is a material except a measuring material, applies interference to an ion electrode and is not contained in a specimen to a standard soln. and obtaining the measured value coincident approximately with the value obtd. by a flame analysis method. CONSTITUTION:The ions of the material Mg which is the material except Na and applies interference to an Na electrode is added to an aq. NaCl soln. which is the standard soln. having 140 Na ion concn., in the case of measuring the Na ion concn. in blood by using said electrode. Then the potential registers a high value and such a concentration 143 to indicate as if the measured Na ion concn. is high is obtd. The reading of the concn. is so calibrated as to attain 140 by using such standard soln. and the measured concn. value lower by as much as the concn. 3 with respect to the specimen in which the Mg ions are not incorporated is obtd. The measured value coincident approximately with the measured value by the flame analysis method is thus obtd. by adjusting the concn. of the Mg ions. The error owing to the adsorption of the protein and the potential difference between the remaining solns. is corrected. |
