Catalytic and kinetic spectrophotometric method for determination of vanadium(V) by 2,3,4-trihydroxyacetophenonephenylhydrazone
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چکیده
منابع مشابه
Kinetic Spectrophotometric Method for Determination of S032- Using Methylen blue
The present work reports a kinetic spectrophotometric method for the determination of traceamounts of sulphite that is based on inhibitory effect of sulphite on the oxidation of Methyleneblue (MB) in acidic media. The reaction is followed spectrophotometrically by monitoring thedecrease in absorbance of MB at 664 nm with a fixed time of 0.5-4.5 minutes. It was found thatsulphite exert a strong ...
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This paper reports a new simple, sensitive and selective catalytic kinetic spectrophotometric method for the determination of trace quantities of Os(VIII). Janus Green is oxidized by hydrogen peroxide in borate buffer at pH 9.0 and Os(VIII) catalyzes the reaction. Reaction rate was monitored spectrophotometrically at 618 nm. The calibration graph is linear for 0.4 – 430.0 ng mL-1 of Os(VIII) an...
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ژورنال
عنوان ژورنال: Journal of Saudi Chemical Society
سال: 2014
ISSN: 1319-6103
DOI: 10.1016/j.jscs.2011.11.007