Spectrophotometric determination of trace amounts of mercury with phenanthroline and eosin
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منابع مشابه
Spectrophotometric Determination of Trace Amounts of Mercury With Phenanthroline and Eosin
Owing to the toxicity of mercury in the environment, the determination of trace amounts of mercury has attracted great attention. I 32 The conventional technique of dithizone extraction is not always favoured because the procedure is cumbersome, sensitive to light and is subject to interferences from other metal ions.3 Analytical methods based on ternary complex formation seem to offer superior...
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A catalytic method has been developed for the determination of microgram amounts of mercury (II) based on its catalytic effect on the rate of a ligand substitution reaction. The reaction studied involved the substitution of cyanide in hexacyanoferrate (II) by resacetophenone benzoic acid hydrazone (2’, 4’dihydroxy propiophenone benzoic acid hydrazone) and the reaction was monitored spectrophoto...
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Cerium (IV) has a catalytic effect on the very slow redox reaction between gallocyanine and bromate in acidic media. The reaction was monitored spectrophotometrically at 525 nm by a fixed time method of 4.0 rnin from initiation of the reaction. The decrease in absorbance at 525 nm is proportional to the Ce (IV) concentration in the range of 0.005-1.000 and 1.00-10.00 pg. ml-l. The limit of ...
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ژورنال
عنوان ژورنال: The Analyst
سال: 1984
ISSN: 0003-2654,1364-5528
DOI: 10.1039/an9840901577