Effect of matrices on absorbance of selenium in graphite furnace atomic absorption spectrometry.
نویسندگان
چکیده
منابع مشابه
GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY WITH MAlIlRIX MODIFICATION FOR DETERMINATION OF LEAD IN DRINKING WATER
An amoniumvanadate plus sodium molybdate mixed modifier Graphite Furnace Atomic Absorption Spectrometric method has been developed for determination of traces of lead in drinking water. The concentration of lead in the sample is obtained by direct comparison to linear working graph prepared from aqueous standards in the modifier medium, The results indicate the better performance of the pro...
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The production of edible sprouts is a fast-growing segment of the food industry worldwide. Although several kinds of seeds may be eaten as sprouts, adzuki (Vigna angularis) and mung (Vigna radiata) beans are preferred and commonly used for sprout production.1 Studies have shown that grain germination increases the content of essential nutrients, such as minerals, vitamins, and proteins, and red...
متن کاملEffect of the chemical species of arsenic on sensitivity in graphite furnace atomic absorption spectrometry.
The sensitivity of graphite furnace atomic absorption spectrometry (GFAAS) to arsenobetaine (AB) was 1.3-times higher than to inorganic As. In order to understand the mechanism underlying this observation, the atomization processes for both chemical species were investigated in terms of the enthalpy change (DeltaH) during the atomization process in GFAAS. The enthalpy change of AB was slightly ...
متن کاملUtilization of electrodeposition on a graphite probe modified with palladium in determination of lead by graphite furnace atomic absorption spectrometry in water and environmental samples
In this work a rapid and selective procedure for separation and preconcentration of lead(Pb2+) before determination by electrothermal atomic absorption spectrometry (ETAAS) wasdeveloped. The procedure is based on the electrodeposition on a graphite probe modified withpalladium. The lead was deposited from acetate buffer solution at pH 5.5. Various parameters,such as pH of solutions, deposition ...
متن کاملgraphite furnace atomic absorption spectrometry with malilrix modification for determination of lead in drinking water
an amoniumvanadate plus sodium molybdate mixed modifier graphite furnace atomic absorption spectrometric method has been developed for determination of traces of lead in drinking water. the concentration of lead in the sample is obtained by direct comparison to linear working graph prepared from aqueous standards in the modifier medium, the results indicate the better performance of the propose...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1986
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.35.6_553