Automated Potentiometric Determination of Inorganic Blood Constituents (Na+, K+, H+, CI )

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Abstract
A system containing specific electrodes for inorganic constituents (Na+, K+, H+, Cl-)in blood has been developed which is automated with respect to sampling, calibration, and data acquisition and processing. The hardware that was built for the system included glass capillary electrodes, silver capillary electrode, special reference electrode, rotary valve, thermostatting and electrically shielding container, and probe selector-amplifier. Suitable standard solutions for the automatic calibration cycle were formulated and have been compared against primary standards. The computer programs for processing the data are briefly described. Data on the performance of the system (precision, speed, volume of specimen) are given.

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