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Journal of Sciences Islamic Republic of Iran، جلد ۱۱، شماره ۱، صفحات ۰-۰
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
COLUMN PRECONCENTRATION OF URANIUM BY 1 -(2-PY RIDYLAZ0)-2-NAPHTHOL SUPPORTED ON NAPHTHALENE USING DIF'FERENTLAL PULSE POLAROGRAPHY |
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| چکیده انگلیسی مقاله |
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. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
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| نشانی اینترنتی |
http://jsciences.ut.ac.ir/article_31300_f07aa8596cd5697036ce52dc4903c800.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/513/article-513-275766.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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