کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5139046 | 1494861 | 2017 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Amperometric determination of omeprazole on screen-printed electrodes using batch injection analysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work demonstrates the sensitive amperometric determination of omeprazole on screen-printed electrodes (SPE) using batch-injection analysis (BIA). A SPE containing a multiwalled carbon nanotube modified electrode coupled to the BIA system provided an analytical method with a low detection limit (9 nmol Lâ 1), high precision (1.3%) and sample throughput (120 hâ 1), employing microliter sample volumes injected by an electronic micropipette. The full analytical system presents portable characteristics that enable application for on-site analysis. Analytical results for pharmaceutical samples analyzed by the proposed method were in agreement with those obtained by spectrophotometry. Moreover, the BIA method presented advantages over the flow-injection analysis with amperometric detection such as detection limit, sensitivity, and sample throughput.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 133, July 2017, Pages 398-403
Journal: Microchemical Journal - Volume 133, July 2017, Pages 398-403
نویسندگان
Jéssica S. Stefano, Thiago F. Tormin, JamÃlia P. da Silva, Eduardo M. Richter, Rodrigo A.A. Munoz,