کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1213868 966907 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new way of solid-phase microextraction fibers preparation for selected antibiotic drug determination by HPLC–MS
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A new way of solid-phase microextraction fibers preparation for selected antibiotic drug determination by HPLC–MS
چکیده انگلیسی

The polypyrrole (PPy) and polythiophene (PTh) solid phase microextraction (SPME) coatings were obtained with the use of the electropolymerisation and linear sweep voltammetry. Such fibers were modified by an ozone treatment in a gaseous phase in the concentration of 2.1 ± 0.2 × 10−5 mol dm−3. Both kinds of fibers were applied in the microextraction of linezolid from standard solutions to compare the extraction efficiencies displayed by these sorption phases. In these investigations a better adsorption capacity was obtained for polypyrrole fibers and hence only these kinds of fibers were utilized in the measurements from human plasma. In all measurements the concentrations of the drugs were in the range from 1 to 20 μg ml−1 (standard solutions) and 1 to 15 μg ml−1 (human plasma). Before the measurements, an optimization of the desorption solution experiments was performed. The correlation coefficients (R) obtained in the standard solution and human plasma were in the range from 0.8399 to 0.9970. The relative standard deviations (RSDs) were in the range of 0.1–7.6%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volume 879, Issue 25, 1 September 2011, Pages 2542–2548
نویسندگان
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