کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1254413 971373 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Detection of parathion methyl using a surface plasmon resonance sensor combined with molecularly imprinted films
ترجمه فارسی عنوان
تشخیص پاراتیون متیل با استفاده از سنسور رزونانس پلاسما در ترکیب با فیلم های مولکولی چاپ شده
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
چکیده انگلیسی

An ultra-sensitive and highly selective parathion methyl (PM) detection method by surface plasmon resonance (SPR) combined with molecularly imprinted films (MIF) was developed. The PM-imprinted film was prepared by thermo initiated polymerization on the bare Au surface of an SPR sensor chip. Template PM molecules were quickly removed by an organic solution of acetonitrile/acetic acid (9:1, v/v), causing a shift of 0.5° in SPR angle. In the concentrations range of 10−13–10−10 mol/L, the refractive index showed a gradual increase with higher concentrations of template PM and the changes of SPR angles were linear with the negative logarithm of PM concentrations. In the experiment, the minimum detectable concentration was 10−13 mol/L. The selectivity of the thin PM-imprinted film against diuron, tetrachlorvinphose and fenitrothion was examined, but no observable binding was detected. The results in the experiment suggested that the MIF had the advantages of high sensitivity and selectivity.

The selectivity of the thin PM-imprinted film against diuron, tetrachlorvinphose and fenitrothion was examined, but no observable binding was detected.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 26, Issue 6, June 2015, Pages 797–800
نویسندگان
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