کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1168245 960582 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multivariate calibration analysis of colorimetric mercury sensing using a molecular probe
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Multivariate calibration analysis of colorimetric mercury sensing using a molecular probe
چکیده انگلیسی
Selectivity is one of the main challenges of sensors, particularly those based on chemical interactions. Multivariate analytical models can determine the concentration of analytes even in the presence of other potential interferences. In this work, we have determined the presence of mercury ions in aqueous solutions in the ppm range (0-2 mg L−1) using a ruthenium bis-thiocyanate complex as a chemical probe. Moreover, we have analyzed the mercury-containing solutions with the co-existence of higher concentrations (19.5 mg L−1) of other potential competitors such as Cd2+, Pb2+, Cu2+ and Zn2+ ions. Our experimental model is based on partial least squares (PLS) method and other techniques as genetic algorithm and statistical feature selection (SFS) that have been used to refine, beforehand, the analytical data. In summary, we have demonstrated that the root mean square error of prediction without pre-treatment and with statistical feature selection can be reduced from 10.22% to 6.27%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 633, Issue 2, 9 February 2009, Pages 173-180
نویسندگان
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