Studies on the Practical Application of Ion Electrode Method. VII. Fundamental Analytical Conditions in the Determination of Chloride Ion

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  • イオン電極法の実用化に関する研究(第7報)塩素イオンの定量における基礎的分析条件

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In the continuous determination of chloride ion in a large number of sample solutions, concentrations of which varied as in river and sea water, it was confirmed that the ion-selective electrode method was much better than the conventional Mohr's method in the simplification of the procedure, because the calibration curve of the former method was almost linear in such a wide range of chloride ion concentrations as 10-100000 ppm. The ion-selective electrode method was interfered by a sulfide ion, which, however, could be eliminated by the addition of lead acetate solution. With this method, determination of 100 ppm chloride ion solution was not affected by cupric ion less than 10 ppm and mercuric ion less than 0.1 ppm.

Journal

  • Eisei kagaku

    Eisei kagaku 22 (5), 286-290, 1976

    The Pharmaceutical Society of Japan

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