Determination of trace amounts of chromium ions in water and food samples using ligand-less solid phase extraction-based modified nano-boehmite(AlOOH)

Rezaiati, Mohammad; Salimi, Farhad; Karami, Changiz

- فلوچارت مراحل ورود و ثبت نام در سامانه نشریات علمی وزارت عتف

- راه اندازی سیستم مدیریت نشریات علمی دانشگاه پیام نور

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	Determination of trace amounts of chromium ions in water and food samples using ligand-less solid phase extraction-based modified nano-boehmite(AlOOH)
Iranian chemical communication
مقاله 4، دوره 5، Issue 4, pp. 364-493, Serial No. 17، دی 2017، صفحه 397-406 اصل مقاله (914.77 K)
نوع مقاله: Original Research Article
نویسندگان
Mohammad Rezaiati^* ¹؛ Farhad Salimi²؛ Changiz Karami³
¹Azad university
²Azad university of kermanshah
³Shahid bahonar university
چکیده
Chromium is one of the hazardous pollutants in industrial effluents. In this study, a new nano-boehmite modiﬁed with sodium dodecyl sulphate is developed for preconcentration trace amounts of chromium ions as a prior step to its determination by ﬂame atomic absorption spectrometry. We investigated the effect of various parameters on the recovery of the analyte ions, including pH of sample solution, amount of sorbent, sample volume on extraction efficiency of the chromium ions. Under the best experimental conditions, the calibration curve was linear in the range of 1.0 -700.0 ng.mL-1 of chromium with R2 = 0.997. Detection limit was 0.6 ng.mL-1 in the original solution (3Sb/m) and the relative standard deviation for seven replicate determination of 0.5 µg.mL-1 chromium was ±2.4%. The developed method was successfully applied to the extraction and determination of chromium in water and food samples with satisfactory results.
کلیدواژه‌ها
solid phase extraction؛ Preconcentration؛ nano boehmite؛ chromium؛ flame atomic absorption spectrometry

مراجع
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Determination of trace amounts of chromium ions in water and food samples using ligand-less solid phase extraction-based modified nano-boehmite(AlOOH)