کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5139099 | 1494860 | 2017 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selective determination of clenbuterol residues in urine by molecular imprinted polymer-Ion mobility spectrometry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Selective determination of clenbuterol residues in urine by molecular imprinted polymer-Ion mobility spectrometry Selective determination of clenbuterol residues in urine by molecular imprinted polymer-Ion mobility spectrometry](/preview/png/5139099.png)
چکیده انگلیسی
Clenbuterol is banned for sports use and strictly regulated in livestock industry. In this study, a procedure for the determination of clenbuterol residues in water and urine has been developed using selective supports combined with ion mobility spectrometry (IMS) determination. A molecular imprinted polymer (MIP) was used for efficient clean-up and preconcentration of clenbuterol followed to a dispersive liquid-liquid microextraction (DLLME) in order to improve selectivity and sensitivity of IMS determinations. Quantitative recoveries from 81 to 99% were obtained for water and spiked urine samples using MIP-DLLME-IMS method. A precision of 4.5%, established as the relative standard deviation of analysis at a concentration level of 5 μg Lâ 1, was obtained, being the limit of quantification (LOQ) of 0.2 μg Lâ 1. A certified reference and several blind-spiked urine samples were analyzed by the proposed methodology and results were compared to a reference ultra-high-performance liquid chromatography mass spectrometry (UHPLC-MS-MS) procedure, being statistically comparable. Thus, the proposed methodology is an attractive strategy for the sensitive and selective analysis of clenbuterol residues in water and urine samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 134, September 2017, Pages 62-67
Journal: Microchemical Journal - Volume 134, September 2017, Pages 62-67
نویسندگان
Otilia Peñuela-Pinto, Sergio Armenta, Francesc A. Esteve-Turrillas, Miguel de la Guardia,