منابع مشابه
polarographic method versus analytical method in determination of dissolved oxygen and n-no3
polarographic method is considered as an alternative laboratory technique for analytical method in determination of dissolved oxygen and n-n03. analytical method is a time consuming technique and is subject to several interferences due to some of constituents in sewage. in this laboratory research, the polar graphic technique with, mercury drop electrodes and titrometric method were applied in ...
متن کاملprediction of dissolved oxygen through mathematical modeling
water quality aspect with regard to dissolved oxygen was studied for a 24 kilometer stretch of malaprabha river in karnataka state, india. main objective of the research was to simulate the predicted dissolved oxygen depletion due to the waste load allocation in the river with the ambient observed values of dissolved oxygen, and to ascertain the application of mathematical modeling for predicti...
متن کاملcharacteristics and seasonal variations of dissolved oxygen
large amounts of degradable wastes including sewage water and agricultural waste or nutrients that stimulate growth of organic matter are discharged into the caspian sea. as a result, average dissolved oxygen concentration in deeper layers is decreasing. this paper presents distribution and seasonal variations of the concentration of dissolved oxygen over the southern shelf of the caspian sea a...
متن کاملSpectrophotometric Winkler determination of dissolved oxygen: re-examination of critical factors and reliability
The spectrophotometric iodine measurement for oxygen determination by the Winkler method is reexamined for theoretical and operational aspects. It is shown that the selection of an isobestic point for measuring the mixture of iodine and tri-iodide in the solution enhances reliability. The wavelength value of 466 nm was selected after a spectrum study. Then, performances are assessed by mean of ...
متن کاملUrate oxidase electrode based on dissolved oxygen probe for urine uric acid determination.
A biosensor for the specific determination of uric acid in urine was developed using urate oxidase (EC 1.7.3.3) in combination with a dissolved oxygen probe. Urate oxidase was immobilized with gelatin by means of glutaraldehyde and fixed on a pretreated teflon membrane to serve as enzyme electrode. The electrode response was maximum when 50 mM glycine buffer was used at pH 9.2 and 35 degrees C....
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1973
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed050p160.2