Results 1 to 10 of about 959,191 (335)

Liquid Chromatography/Mass Spectrometry [PDF]

open access: yesAnalytical Chemistry, 1990
Review of the Development of LC/MS Techniques for Enhancing Structural Information for High-Performance LC/MS Conformation of Pesticides Residues by Liquid Chromatography/Tandem Mass Spectrometry Use of Solvent Adduct Ions To Confirm Structure of Selected Herbicides with Thermospray LC/MS Analysis of Chlorinated Herbicides with Thermospray LC/GC ...
Alfred L. Yergey   +3 more
  +6 more sources

Volatiles Emission by Crotalaria nitens after Insect Attack

open access: yesMolecules, 2021
Plants are known to increase the emission of volatile organic compounds upon the damage of phytophagous insects. However, very little is known about the composition and temporal dynamics of volatiles released by wild plants of the genus Crotalaria ...
Fausto Prada   +2 more
doaj   +1 more source

Enhanced Two-Step Extraction from Biomass of Two Cymbopogon Species Cultivated in Santander, Colombia

open access: yesMolecules, 2023
The insertion of circular economy principles into the essential oil (EO) production chain aims to reduce waste generation and make integral use of harvested plant material.
Angie K. Romero   +7 more
doaj   +1 more source

Color, Antioxidant Capacity and Flavonoid Composition in Hibiscus rosa-sinensis Cultivars

open access: yesMolecules, 2023
Hibiscus rosa-sinensis plants are mainly cultivated as ornamental plants, but they also have food and medicinal uses. In this work, 16 H. rosa-sinensis cultivars were studied to measure their colorimetric parameters and the chemical composition of ...
Jesica J. Mejía   +4 more
doaj   +1 more source

Biological Fluid Microsampling for Therapeutic Drug Monitoring: A Narrative Review

open access: yesBiomedicines, 2023
Therapeutic drug monitoring (TDM) is a specialized area of laboratory medicine which involves the measurement of drug concentrations in biological fluids with the aim of optimizing efficacy and reducing side effects, possibly modifying the drug dose to ...
Alessia Cafaro   +5 more
doaj   +1 more source

Chemical Characterization and Determination of the Antioxidant Properties of Phenolic Compounds in Three Scutellaria sp. Plants Grown in Colombia

open access: yesMolecules, 2023
Plants of the genus Scutellaria (Lamiaceae) have a wide variety of bioactive secondary metabolites with diverse biological properties, e.g., anti-inflammatory, antiallergenic, antioxidant, antiviral, and antitumor activities.
Silvia M. Porras   +5 more
doaj   +1 more source

The Suitability of RNA from Positive SARS-CoV-2 Rapid Antigen Tests for Whole Virus Genome Sequencing and Variant Identification to Maintain Genomic Surveillance

open access: yesDiagnostics, 2023
The COVID-19 pandemic has transformed laboratory management, with a surge in demand for diagnostic tests prompting the adoption of new diagnostic assays and the spread of variant surveillance tools. Rapid antigen tests (RATs) were initially used only for
Annamaria Cucina   +6 more
doaj   +1 more source

Pitfall in the high-throughput quantification of whole blood cyclosporin A using liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2005
In a growing number of laboratories the technique of liquid chromatography-tandem mass spectrometry is used for the quantification of cyclosporin A in whole blood, employing cyclosporin D as the internal standard. Cyclosporin A is extensively metabolized
Spöhrer, Ute, Vogeser, Michael
core   +2 more sources

Defensive functions and potential ecological conflicts of floral stickiness

open access: yesScientific Reports, 2022
Stickiness of vegetative tissues has evolved multiple times in different plant families but is rare and understudied in flowers. While stickiness in general is thought to function primarily as a defense against herbivores, it may compromise mutualistic ...
Alexander Chautá   +4 more
doaj   +1 more source

A UHPLC–MS/MS Method for Therapeutic Drug Monitoring of Aciclovir and Ganciclovir in Plasma and Dried Plasma Spots

open access: yesBiomedicines, 2021
The role of therapeutic drug monitoring (TDM) of valaciclovir (VA)/aciclovir (A) and valganciclovir/ganciclovir (VG/G) in critically ill patients is still a matter of debate.
Federica Pigliasco   +8 more
doaj   +1 more source

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