| 摘要 |
An enclosed electrode assembly for determining the pH of minute samples of continuously or intermittently flowing liquids. The assembly includes a reference electrode comprised of an elongated tube and a half-cell element positioned within the tube and immersed within a continuously flowing electrolyte. Also included is an indicating electrode comprising an ion sensitive capillary tube, an electrolyte surrounding the capillary and a half-cell element immersed in the electrolyte. The capillary tube, containing a sample to be tested, connects to the elongated tube at an angle and forms a juncture for establishing direct electrical continuity between the flowing sample, the reference electrode, the indicating electrode and an external measuring circuit for determining pH.
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