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This differential potentiometric technique is based upon the invention of a new simple electronic RC filter circuit capable of yielding analytical results of high accuracy and precision in addition to having the obvious advantages of very low cost and ease of operation over the earlier conventional and complicated differentiator circuits. The technique has the potential of application to other types of potentiometric estimations such as compleximetry and redox titrimetry.

A computerized gamma-ray scanning device, based on radiation absorption/ transmission principles, has been applied for the investigation of industrial problems. The self designed, developed and applied computer code program "COLSCAN" is a practical model of gamma scanning for the rectification of chemicals and petroleum distillation columns/ towers in industry. The diagnosis technique is completely non-destructive, in-situ, economical, efficient, accurate and with out any disturbance to the normal operation of the industrial plants. The computerization of data acquisition and analysis further...