کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7142660 1462052 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of surrogate parameters in characteristic UV-vis absorption bands for rapid analysis of water contaminants
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Application of surrogate parameters in characteristic UV-vis absorption bands for rapid analysis of water contaminants
چکیده انگلیسی
In recent years, absorption spectroscopy is being widely used for water quality monitoring. However, much of the spectral analysis results do not provide any physical meaning and the use of traditional parameters for monitoring water quality, such as chemical oxygen demand (COD), is not a radical research method because of the large diversity of chemical components in water. Here in, we studied the absorption spectra of eight typical contaminants and proposed four integral parameters in different spectral ranges, which were relative to different functional groups. The proposed surrogate parameters can be used to rapidly analyze and predict the categories of contaminants based on their changes without using any modeling. We used a dynamic partitioning algorithm based on the fourth-order derivative spectrum to adapt the movement of absorption bands. The impact of turbidity was eliminated by deducting the turbidity component from surrogate parameters based on the proportion of four parameters in formazine turbid solution. Using this method, we conducted long-term monitoring of the wastewater released by a dyeing and printing plant. The rapid analysis and prediction potential of different categories of water contaminants was demonstrated. The prediction results can provide evidence for more targeted and detailed analysis and water quality monitoring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 239, February 2017, Pages 718-726
نویسندگان
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