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Analytical and Bioanalytical Chemistry Research، جلد ۲، شماره ۱، صفحات ۱۳-۲۱
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عنوان انگلیسی Determination of Iron Species by Combination of Solvent Assisted-Dispersive Solid Phase Extraction and Spectrophotometry
چکیده انگلیسی مقاله A simple, rapid and sensitive solvent assisted-dispersive solid phase extraction method was developed for the extraction of iron(II) prior to its spectrophotometric determination. The Fe(II) reacted with 2,4,6-tris(2-pyridyl)-1,3,5-triazine, neutralized with sodium dodecyl sulfate and extracted onto the fine particles of benzophenone which were formed upon rapid injection of a mixture of benzophenone as the sorbent and ethanol as the disperser solvent into the aqueous solution. After phase separation, the sedimented phase containing the complex was dissolved in ethanol and the analyte concentration was determined by measuring its absorption at 594 nm. Total iron was determined after the reduction of Fe(III) to Fe(II) with hydroxylamine hydrochloride. Under the optimized conditions, an enhancement factor of 32, the detection limit of 0.16 µg l-1, and the relative standard deviation of 1.9% (n = 6) at 20 µg l-1 concentration level of Fe(II) were achieved. The method was successfully applied to the determination of iron species in water samples and total iron in infant dry formula milk, apple, rice, spinach and parsley samples.
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نویسندگان مقاله زهرا دهقانی |
department of chemistry, faculty of science, yazd university, yazd 89195-741, iran
سازمان اصلی تایید شده: دانشگاه یزد (Yazd university)

shayessteh دادفرنیا |
department of chemistry, faculty of science, yazd university, yazd 89195-741, iran
سازمان اصلی تایید شده: دانشگاه یزد (Yazd university)

علی محمد حاجی شعبانی | ali mohammad haji shabani
department of chemistry, faculty of science, yazd university, yazd 89195-741, iran
سازمان اصلی تایید شده: دانشگاه یزد (Yazd university)

محمد حسن احرامپوش | mohammad hasan
department of environmental health, shahid sadoughi university of medical sciences, yazd, iran

نشانی اینترنتی http://www.analchemres.org/article_9229_cc96fa2e21cc1561b9ef092d69be88c2.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/378/article-378-332587.pdf
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زبان مقاله منتشر شده en
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