Special issue : Significance and problems of pH measurement in acid rain survey.Characteristics of pH electrode.

1993 ◽  
Vol 22 (10) ◽  
pp. 572-575
Author(s):  
Shinji TAKEICHI ◽  
Hiromi OHKAWA
Keyword(s):  
Acid Rain ◽  
Ph Measurement ◽  
Special Issue ◽  
Ph Electrode

All-Solid-State pH Sensor Based on Conducting Polymer

2010 ◽  
Vol 93-94 ◽  
pp. 591-594 ◽  
Author(s):  
W. Natedungta ◽  
W. Prissanaroon-Ouajai
Keyword(s):  
Solid State ◽  
Conducting Polymer ◽  
Electrolyte Solution ◽  
Ph Sensor ◽  
Reference Electrode ◽  
Ph Measurement ◽  
Metallic Silver ◽  
Internal Solution ◽  
State Reference ◽  
Ph Electrode

A solid-state (free of internal electrolyte solution) reference electrode based on metallic silver is simply fabricated via a simple electrodeposition from AgNO3. Potentiometry is carried out to study the performance of the solid-state reference electrode in comparison with the commercial Ag/AgCl reference electrode. In addition, the proposed solid-state reference electrode has been integrated with the PPy-modified pH electrode to form an all-solid-state pH sensor, showing the capability of pH measurement. Absence of the internal solution leads to the pH sensor that is convenient to use and maintenance. In addition, the proposed pH sensor is possibly applied to biochemical and medical processes as well as flow infection analysis.

scholarly journals pH electrode performance under automated management conditions

1997 ◽  
Vol 19 (6) ◽  
pp. 213-224 ◽  
Author(s):  
J. E. A. Comer ◽  
C. Hibbert
Keyword(s):  
Ph Measurement ◽  
Automated System ◽  
Standard Methods ◽  
Electrode Performance ◽  
Buffer Solutions ◽  
Effects Of Temperature ◽  
Ph Scale ◽  
Proper Account ◽  
Ph Electrode ◽  
Automated Management

pH is frequently measured in laboratories, but to have confidence in the results it is necessary to know that it was measured properly. For an electrode to give accurate results it must be treated well and calibrated correctly. In this paper, an automated system for pH measurement is described; the system uses the operational pH scale and calibrates using two or three buffer solutions, taking proper account of the effects of temperature on the system. The system can be programmed with standard methods and procedures to ensure that the electrode gives the best possible performance. Calibrations and measurements within the system are reproducible, and the automated system is more robust than the manual pH meter, and requires less operator time.

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