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AN INNOVATIVE POTENTIOMTRI DETERMINATION OF DISSOLVED OXYGEN OF WATER ADOPTING WINKLER'S BASIC PRINCIPLES
AN INNOVATIVE POTENTIOMTRI DETERMINATION OF DISSOLVED OXYGEN OF WATER ADOPTING WINKLER'S BASIC PRINCIPLES
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机译：温克勒基本原理的创新电位滴定法测定水中的溶解氧
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摘要
The assessment of dissolved oxygen ( DO) of water through Winkler's volumetric, clarke's amperometric, Luminecent dissolved oxygen(LDO), are well known. A unique inventive approach of determination of dissolved oxygen is aimed at ,by giving importance to the Winkler's redox reactions of at the Pt indicator electrode of a electrochemical cell , which is coupled with calomel as a reference electrode in a closed cell. Standard Manganous sulphate solutions are prepared to obtain a linear plot .The corresponding DO values are plotted Vs potential (E1 - E2) mv measured for DO water. From this linear plot, DO of the water to be investigated can be found out by knowing the Potential (E1 - E2) mv of the unknown water sample at that temperature. An excellent agreement of the D O values are observed which are comparable to winkler's method.. The D O values obtained potentiometrically are reproducible with accuracy.
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