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Automated flow system for sildenafil enrichment using surfactant coated solid-phase with fluorescence detection
(Elsevier Science, 2012-08)
In this work, Amberlite XAD-1180 resin is used for on-line surfactant-mediated pre-concentration of sildenafil as a prior step for its fluorescent detection. In order to activate the column for sildenafil pre-concentration, ...
Evaluation of carbon nanotubes as chiral selectors for continuous-flow enantiomeric separation of carvedilol with fluorescent detection
(Elsevier Science, 2012-11)
Single-walled carbon nanotubes (SWNT) are proposed as chiral selectors for separation of carvedilol stereoisomers beginning since its racemic mixture. The novel developed FIA-methodology employs a microcolumn (mC) packed ...
Fluorimetric determination of fluoride in a flow assembly integrated on-line to an open/closed FIA system to remove interference by solid phase extraction
(Elsevier Science, 2002-11)
A simple flow injection fluorimetric method for fluoride determination is proposed. The method is based on the enhanced fluorescence of quercitin-Zr(IV) complex when fluoride ion is present in the sample. An open/closed ...
Fluorescent serum and urinary advanced glycoxidation edn-paroducts in non-diabetic subjects
(2007)
Introduction: Advanced glycoxidation end-products (AGEs) are involved in age-related conditions and diabetic complications. Diet intake contributes to their circulating concentrations. Aim: To measure serum and urinary ...
A ruthenium-rhodamine complex as an activatable fluorescent probe
(American Chemical Society, 2010-07)
We describe the synthesis and characterization of a ruthenium-bipyridyl complex bearing a rhodamine-based fluorescent ligand. The complex is weakly fluorescent due to the quenching of rhodamine. Upon irradiation of the ...
Evaluation of two fluorescence immunoassays for the rapid detection of SARS-CoV-2 antigen-new tool to detect infective COVID-19 patients
(2021)
Background
Real-Time Reverse-Transcription Polymerase Chain Reaction (RT-PCR) is currently the only recommended diagnostic method for SARS-CoV-2. However, rapid immunoassays for SARS-CoV-2 antigen could significantly ...
Fluorescent serum and urinary advanced glycoxidation end-products in non- diabetic subjects
(Sociedad de Biología de Chile, 2007)
Novel strategy for fluorescence determination of glibenclamide in samples with high concentration of caffeine based on a low-pressure flow injection chromatography system
(Elsevier Science, 2018-11-07)
In this work, a new low-pressure flow injection chromatography (FIA-C) system with fluorescence detection was developed for the toxicological control of glibenclamide in beverages with high caffeine content. As caffeine ...
A fast fluorimetric flow injection method to determine ibuprofen
(Sociedade Brasileira de Química, 2006-12-10)
The native fluorescence of ibuprofen was enhanced when a host-guest complex of the analyte with b cyclodextrin (b-CD) was formed. So, based on this fact, a flow injection method to determine ibuprofen in different ...