Publications by authors named "Miriam Arago"
Article Synopsis
- The study reports a newly developed HPLC-UV method to analyze and classify the phenolic compounds in Spanish paprika using C reversed-phase chromatography and linear discriminant analysis (LDA).
- The method involves optimizing extraction procedures through sonication and centrifugation to enhance the quality of the chromatographic data for better classification.
- A total of 96 paprika samples were analyzed, achieving a perfect classification rate of 100% for the testing group, showcasing the effectiveness of the method in distinguishing different paprika varieties based on their phenolic profiles.
Article Synopsis
- Researchers tested different screen-printed electrodes made from graphite, carbon nanotubes, carbon nanofibers, and graphene to detect phenolic compounds using high performance liquid chromatography (HPLC).
- The carbon nanofiber modified screen-printed electrode (SPCE-CNF) showed the best sensitivity and analytical performance among the types tested.
- Using data collected from SPCE-CNF, linear discriminant analysis (LDA) was applied to classify and analyze 96 samples of Spanish paprika, differentiating them by origin and type.
Catechol (CC), resorcinol (RC) and hydroquinone (HQ) are dihydroxybenzene isomers that usually coexist in different samples and can be determined using voltammetric techniques taking profit of their fast response, high sensitivity and selectivity, cheap instrumentation, simple and timesaving operation modes. However, a strong overlapping of CC and HQ signals is observed hindering their accurate analysis. In the present work, the combination of differential pulse voltammetry with graphene screen-printed electrodes (allowing detection limits of 2.
View Article and Find Full Text PDFBackground And Objective: The aim of this study was to evaluate the modifications of high sensitivity C-reactive protein (CRP) with antihypertensive and statin treatment in a hypertensive population with a wide range of coronary risks (CR).
Patients And Method: Retrospective follow-up study in 665 hypertensive patients: 556 (52% male) without dyslipidemia and CR (Framingham at 10 years) of 8.3 (7.