کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1236996 1495291 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Partial least-squares regression for the simultaneous determination of aluminum and beryllium in geochemical samples using xylenol orange
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Partial least-squares regression for the simultaneous determination of aluminum and beryllium in geochemical samples using xylenol orange
چکیده انگلیسی
A partial least-squares regression (PLS) was developed for the simultaneous spectrophotometric determination of aluminum and beryllium in geochemical samples by xylenol orange as the chromogenic reagent in water media and in micellar media. The effects of pH, xylenol orange concentration and surfactant concentration on the complexes formation reactions were studied. In the absence of surfactant the complex color development takes place at 2 h after mixing the reagents. By using CTAB as micellar media the complexes formation was improved and the rate of the complexation reactions increased. By using PLS-1 algorithm satisfactory results were obtained. The proposed procedure showed to be useful for prediction of Al and Be values from 0.1 to 1.0 mg L−1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issues 13–14, October 2005, Pages 2988-2994
نویسندگان
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