Journal ArticleDOI
Progress in Pretreatment and Analytical Methods of Coumarins: An Update since 2012 – A Review
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TLDR
An updated overview of the latest trends in sample preparation techniques and methods used to detect coumarins from March 2012 to April 2019 is provided.Abstract:
Coumarins are widely used due to their wide range of biological activities, but the long-term or excessive use of coumarin flavors can pose serious health hazards. Therefore, sensitive and specific methods for the quantification of these compounds in different matrices have been developed. In this review, an updated overview of the latest trends in sample preparation techniques and methods used to detect coumarins from March 2012 to April 2019 is provided. This study reviews different analytical methods (such as liquid chromatography coupled with different detectors, electrochemical sensors, capillary electrophoresis, etc.) and different pretreatment methods (such as liquid-liquid extraction, solid-phase extraction, dispersive liquid-liquid microextraction, etc.). Different methods for the pretreatment and determination of coumarins in plant, food, environmental, pharmaceutical and biological samples are summarized, discussed and compared.HighlightsProgress in pretreatment and analytical methods of coumarins are summarized.Fundamentals, instrumentation and applications of purification and quantification are summarized and compared.Optimization of experimental conditions are discussed.Newly emerged eco-friendly methods are introduced.read more
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Trending Topics on Coumarin and Its Derivatives in 2020.
Aitor Carneiro,Maria João Matos,Maria João Matos,Eugenio Uriarte,Eugenio Uriarte,Lourdes Santana +5 more
TL;DR: Coumarins are naturally occurring molecules with a versatile range of activities and their structural and physicochemical characteristics make them a privileged scaffold in medicinal chemistry and chemical biology as discussed by the authors.
Journal ArticleDOI
Application of infrared spectroscopy combined with chemometrics in mushroom
TL;DR: Different species and geographic regions of mushrooms differ in nutritional and medicinal value, while traditional chemical methods are destructive, timeconsuming and expensive to sample as mentioned in this paper. But, the benefits of these methods are limited.
Journal ArticleDOI
Sweeping-micellar electrokinetic chromatography versus reversed phase liquid chromatography for the determination of coumarin in curry.
TL;DR: In this paper, the analytical performance of reversed-phase liquid chromatography (RP-LC) and sweeping-micellar electrokinetic chromatography(MEKC) methods for the determination of coumarin in complex curry (gravy) samples was compared.
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Coumarin as a chemical probe to evaluate efficiency of vortex – based hydrodynamic cavitation process
TL;DR: In this paper , the performance of a vortex-based hydrodynamic cavitation (HC) system is evaluated via an indirect method using coumarin as a chemical probe, and the authors show that the use of persulfate oxidant along with HC is the most effective in maximizing OH• generation with a cavitation yield of 15.30 × 10−4 mg/W-min.
References
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Fast and Easy Multiresidue Method Employing Acetonitrile Extraction/Partitioning and "Dispersive Solid-Phase Extraction" for the Determination of Pesticide Residues in Produce
TL;DR: A simple, fast, and inexpensive method for the determination of pesticide residues in fruits and vegetables is introduced and effectively removes many polar matrix components, such as organic acids, certain polar pigments, and sugars, to some extent from the food extracts.
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Determination of organic compounds in water using dispersive liquid-liquid microextraction
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TL;DR: The ability of DLLME technique in the extraction of other organic compounds such as organochlorine pesticides, organophosphorus pesticides and substituted benzene compounds were studied.
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Solvent microextraction into a single drop.
TL;DR: An analytical technique is described which combines solvent extraction with gas chromatographic (GC) analysis in a simple and inexpensive apparatus involving very little solvent consumption and is in good agreement with a convective-diffusive kinetic model.
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Liquid-liquid-liquid microextraction for sample preparation of biological fluids prior to capillary electrophoresis.
TL;DR: Liquid-liquid-liquid microextraction (LLLME) served as a technique for sample cleanup since large molecules, acidic compounds, and neutral components were not extracted into the acceptor phase.
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Solid-phase extraction: method development, sorbents, and coupling with liquid chromatography
TL;DR: The objective of this review is to provide updated information about the most important features of the new solid-phase extraction (SPE) materials, their interaction mode and their potential for modern SPE.