Resin Electrode for pH Measurement

pH Measurement with the Glass Electrode and Vacuum Tube Potentiometer.

Blood pH measurement with the glass electrode; study of venous and fingertip blood.

BSERVATIONS MADE DURING the routine estimation of blood pH with the glass electrode noted that specimens of fingertip blood often tended to drift rapidly toward the alkaline side when exposed to air at 370 or showed a slower drift in this direction under oil. This change was noted to be slower with specimens of venous blood. The pH of blood taken from fingertip or vein under oil and cooled rapi...

Measurement of tubular fluid bicarbonate concentration by the cuvette-type glass micro pH electrode.

NIy comments will be confined to aspects of electrode construction or measuring techniquie that liffer from those originally (lescribed by Uhlich, Baldamus, and Ullriclh(l). I wislh to indlicate my deep gratittu(le to these investigators who kin(dly introduce(d me to their elegant method in 1968. The hiiglh impedlance Orion 801 amplifier witlh specially slhielded cables was used for the pH elec...

pH electrode performance under automated management conditions

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 p...

Plastic pH electrodes for the measurement of gastrointestinal pH.

Plastic electrodes have been developed for measuring pH in the human gastrointestinal tract. The electrodes have a plastic hydrogen ion sensitive membrane sealed to a length of fluid filled PVC tubing. Two recently developed hydrogen ion sensitive ligands have been examined. Their operational characteristics have been described. These electrodes have an electrical response of 52 to 58 mV/pH uni...