Direct Determination of Vanadium in Hair by Graphite Furnace Atomic Absorption Spectrometry Using Air Ashing in the Graphite Furnace.
نویسندگان
چکیده
منابع مشابه
Direct Determination of Tin in Human Hair by Graphite Furnace Atomic Absorption Spectrometry Using Air Ashing in Graphite Tube
Direct determination of tin in human hair was performed by graphite furnace atomic absorption spectrometry. Human hair was cut into 3-5 mm long and 1-2 mg of the sample was directly introduced into a pyrolytically coated graphite tube, of which the injection hole was enlarged to a diameter of approximately 5 mm. After introduction of the sample, 20 μl of 30 mg Pd/l in 1 mol/l HCl was added as a...
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 pro...
متن کاملdirect determination of arsenic in potassium citrate tablet using graphite furnace atomic absorption spectrometry
in this study, a rapid and simple method based on graphite furnace atomic absorption spectrometry (gfaas) is described for direct determination of arsenic in potassium citrate tablet samples. pyrolytic graphite tubes were used as atomizers. nickel nitrate was used as chemical modifier. the ashing and atomization temperature and the concentration of modifier were also optimized. the detection li...
متن کاملDirect determination of zinc in serum by Zeeman atomic absorption spectrometry with a graphite furnace.
We developed a precise and accurate graphite furnace atomic absorption spectrometric method for the direct determination of zinc in serum. Serum samples are analyzed after 20-fold dilution with water of ultrapure analytical grade. No other reagent is used, from the moment of sampling until measurement. During atomization, the argon flow is kept at 150 mL/min instead of gas stop, to decrease the...
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2001
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.17.1351