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Fluorescence enhancement novel green analytical method for paraquat herbicide quantification based on immobilization on clay
(Royal Society of Chemistry, 2019-04-09)
A new green method was developed for the quantification of paraquat (PQ) in water samples based on the fluorescence emission enhancement of the herbicide signal after adsorption on sodium montmorillonite clay (MMT). Radiant ...
Carbon tape as a convenient electrode material for electrochemical paper-based microfluidic devices (ePADs)
(Royal Society of Chemistry, 2018-09)
Electrochemical paper-based analytical devices represent an innovative and versatile platform for fluid handling and analysis. Nevertheless, the intrinsic structure of the paper can impose limitations to both the selection ...
Chemometric and green metric strategies for sustainable analytical methods: Phenolic compounds in lettuce-NADES extracts
(Royal Society of Chemistry, 2021-03)
The combination of chemometric and green metric tools adds up to synergistic effects at method development, being highly compatible with green analytical chemistry (GAC). In the present study, both strategies were applied ...
Analytical Figures of Merit for Partial Least-Squares Coupled to Residual Multilinearization
(American Chemical Society, 2012-12)
A new expression is developed which allows estimating the sensitivity for the whole family of multivariate calibration algorithms based on partial least-squares regression combined with residual multilinearization. The ...
Quantifying the Prediction Error in Analytical Multivariate Curve Resolution Studies of Multicomponent Systems
(American Chemical Society, 2018-06)
In multivariate curve resolution (MCR) analysis, a range of feasible solutions is often encountered, because of the rotational ambiguities associated with the bilinear decomposition of data matrices. For quantitative ...
Application of the correlation constrained multivariate curve resolution alternating least-squares method for analyte quantitation in the presence of unexpected interferences using first-order instrumental data
(Royal Society of Chemistry, 2010-01)
Correlation constrained multivariate curve resolution-alternating least-squares is shown to be a feasible method for processing first-order instrumental data and achieve analyte quantitation in the presence of unexpected ...
Nanostructured paper-based platform for phenylalanine neonatal screening by LED-induced fluorescence
(Royal Society of Chemistry, 2020-03)
In this work, a novel paper-based analytical device (PAD) coupled to LED-induced fluorescence (LIF) detection (fPAD) for the rapid, selective, and sensitive quantification of phenylalanine (Phe) in neonatal samples was ...
Reliable and simple analytical methods for determination of citrulline and metabolically related amino acids by liquid chromatography after derivatization: comparison between monolithic and core–shell columns
(Royal Society of Chemistry, 2014-08)
We describe the development of a high-performance liquid chromatography (HPLC) method for the determination of citrulline and other amino acids relevant to intestinal diseases. The amino acids were derivatized with ...
Design of a novel plasmonic nanoconjugated analytical tool for ultrasensitive antigen quantification
(Royal Society of Chemistry, 2016-07)
To date, while various diagnostic approaches for antigen detection have been proposed, most are too expensive, lengthy and limited in sensitivity for clinical use. Nanoparticle systems with unique material properties, ...
Emerging ionic liquid-based techniques for total-metal and metal-speciation analysis
(Elsevier, 2010-11)
Ionic liquids (ILs) are generally considered to be more environmentally friendly than common organic solvents and have unique characteristics (e.g., effectively no vapor pressure, adjustable viscosity and miscibility in ...