کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
582197 | 877852 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On-site determination of tin in geological and water samples using novel organic reagent with iodide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
A new, simple and sensitive method for spectrophotometric determination of tin (IV) with iodide and amide is described. The Sn(IV)-Iâ complex is extracted with chloroform solution of amide (N-phenylacetamide, N-alkylacetamide, alkyl = butyl, phenyl, hexyl and octyl group) in the strong sulphuric acid solution. Among five amides studied, N-octylacetamide (OAA) has been selected as it yielded best sensitivity. The apparent (at twofold preconcentration) molar absorptivity with respect to tin is (2.40) Ã 105 L molâ1 cmâ1 at λmax, 410 nm. The detection limit of the method is 4 μg Lâ1 Sn. The method is free from interferences of common ions that are normally associated with Sn. The method is highly sensitive and found to be applicable for the rapid determination of tin in water samples at micro-gram levels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 164, Issue 1, 15 May 2009, Pages 95-98
Journal: Journal of Hazardous Materials - Volume 164, Issue 1, 15 May 2009, Pages 95-98
نویسندگان
Kavita Agrawal, Khageshwar Singh Patel, Kamlesh Shrivas, Virendra Kumar Jain, Fahmida Khan,