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. (1378). COLUMN PRECONCENTRATION OF URANIUM BY 1 -(2-PY RIDYLAZ0)-2-NAPHTHOL SUPPORTED ON NAPHTHALENE USING DIF'FERENTLAL PULSE POLAROGRAPHY. , 11(1), -.
. "COLUMN PRECONCENTRATION OF URANIUM BY 1 -(2-PY RIDYLAZ0)-2-NAPHTHOL SUPPORTED ON NAPHTHALENE USING DIF'FERENTLAL PULSE POLAROGRAPHY". , 11, 1, 1378, -.
. (1378). 'COLUMN PRECONCENTRATION OF URANIUM BY 1 -(2-PY RIDYLAZ0)-2-NAPHTHOL SUPPORTED ON NAPHTHALENE USING DIF'FERENTLAL PULSE POLAROGRAPHY', , 11(1), pp. -.
. COLUMN PRECONCENTRATION OF URANIUM BY 1 -(2-PY RIDYLAZ0)-2-NAPHTHOL SUPPORTED ON NAPHTHALENE USING DIF'FERENTLAL PULSE POLAROGRAPHY. , 1378; 11(1): -.

COLUMN PRECONCENTRATION OF URANIUM BY 1 -(2-PY RIDYLAZ0)-2-NAPHTHOL SUPPORTED ON NAPHTHALENE USING DIF'FERENTLAL PULSE POLAROGRAPHY

Journal of Sciences, Islamic Republic of Iran
مقاله 4، دوره 11، شماره 1، خرداد 2000    اصل مقاله (348.89 K)
چکیده
A solid chelating material, 1-(2-pyridy1azo)-2-naphthol (PAN) supported on
naphthalene provides a rapid and highly selective means of preconcentration of
uranium from aqueous solution. Uranium is quantitatively retained on this adsorbent
in the pH range 9.8-10.7 with a flow rate of 1 ml min . The metal complex was
desorbed with 10 ml of 2 M hydrochloric acid and uranium is determined by
differential pulse polarography (DPP). The detection limit is 1.5 µg ml (Signal to
noise ratio = 2). The linearity is maintained in the concentration range 3.0 - 310 ) µ g
ml with a correlation coefficient of 0.9994 (n=7) and relative standard deviation of
1.1 %(n=7). Characterization of the electroactive process included an examination
of the degree of reversibility. Various parameters such as the effect of pH, volume of
aqueous phase and interference of a number of metal ions on the determination of
uranium have been studied in detail to optimize the conditions for determination of
uranium.
عنوان مقاله [English]
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چکیده [English]
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