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Flow injection analysis: Rayleigh light scattering technique for total protein determination
(Springer Heidelberg, 2003-12)
A novel flow injection analysis (FIA) method with Rayleigh light scattering (RLS) detection was developed for the determination of total protein concentrations. This method is based on the weak intensity of RLS of bromothymol ...
A sensitive spectrophotometric method for lead determination by flow injection analysis with on-line preconcentration
(Elsevier Science, 2004-12)
A new flow injection (FI) system for the determination of Pb(II) at trace level with a preconcentration step and spectrophotometric detection is proposed. It is based on preconcentration of lead ions on chitosan and ...
PLS regression in the spectrophotometric data for the simultaneous determination of levodopa and carbidopa in pharmaceutical preparations by using an enzymatic stopped-flow FIA technique
(Taylor & Francis, 2007-01)
An enzymatic stopped-flow-injection analysis is proposed for simultaneous determination of levodopa and carbidopa in pharmaceutical preparations. The dopaquinones obtained after the oxidation catalized by the enzyme were ...
Enzymatic flow injection analysis of coprostanol in non-aqueous media
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
Flow-injection spectrophotometric method with on-line photodegradation for determination of ascorbic acid and total sugars in fruit juices
(Academic Press Inc Elsevier Science, 2011-02)
This article reports a flow-injection spectrophotometric determination (FIA) with a photodegradation step to determine ascorbic acid and total sugars. The flow-injection system includes a simple ultraviolet photoreactor ...
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 ...
Online naphazoline quality control by micellar-enhanced spectrofluorimetry
(John Wiley & Sons Ltd, 2011-11)
The aim of this study was to develop a method for online spectrofluorimetric quality control of naphazoline (NPZ) in pharmaceuticals and raw drugs. A combination of a flow-injection analysis (FIA) system with micellar-enhanced ...
Automated method for the total creatinine determination in dehydrated broths
(Taylor & Francis, 2006-01)
In order to improve the quality control of dehydrated broth, a new automated method was developed to determine total creatinine in dehydrated broths. The sample pretreatment was coupled on-line with the Flow Injection ...
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 ...