Browsing QFA_Articles by Title
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Analysis of selected veterinary antibiotics in fish by micellar liquid chromatography with fluorescence detection and validation in accordance with regulation 2002/657/EC
Elsevier (2010)A simple and sensitive method was optimised and validated for the simultaneous analysis of five quinolones (oxolinic acid, flumequine, enrofloxacin, difloxacin and sarafloxacin) in different fish muscles. Analytical ... -
Analysis of the Pb0.30CaxSryTiO3 ternary system: The effect of Ca2+ and Sr2+ cations on the electrical properties of PbTiO3
Sao Paulo State University. Institute of Chemistry (2022-08-17)Powder and thin films of the Pb0.30Ca0.10Sr0.60TiO3 (PCST 30/10/60) and Pb0.30Ca0.60Sr0.10TiO3 (PCST 30/60/10) ternary system were synthetized by the polymeric precursor method and the thin films deposited on the Si/SiO2/Ti/Pt ... -
Analysis of thiabendazole, 4-tert-octylphenol and chlorpyrifos in waste and sewage water by direct injection – micellar liquid chromatography
Royal Society of Chemistry (2015-01)A micellar liquid chromatographic method has been developed for the simultaneous quantification of the pesticides thiabendazole and chlorpyrifos, as well as an alkylphenol, which is included in pesticide formulations, i.e., ... -
Analytical determination of hydroxytyrosol in olive extract samples by micellar liquid chromatography
Elsevier (2011)Hydroxytyrosol is a well-known natural phenolic component obtained from olive extract samples with antioxidant effects. A micellar liquid chromatography method to detect and quantify hydroxytyrosol in olive extract samples ... -
Analytical investigation of cannabis biomarkers in raw urban wastewater to refine consumption estimates
Elsevier (2022-08)Wastewater analysis of Δ9-tetrahydrocannabinol (THC) biomarkers can provide essential information on trends in cannabis consumption. Although analysis is mostly focused on the aqueous phase, previous studies have illustrated ... -
El análisis de aguas residuales con fines epidemiológicos: presente y futuro en España
Asociación Española de Estudio en Drogodependencias, AESED (2020)El análisis de aguas residuales con fines epidemiológicos es actualmente una herramienta fiable y comple-mentaria a las metodologías basadas en indicadores tradicionales para el control de diferentes sustancias entre las ... -
Anisotropy of spin–orbit induced electron spin relaxation in [001] and [111] grown GaAs quantum dots
IOP Publishing (2015)We report a systematic study of the spin relaxation anisotropy between single electron Zeeman sublevels in three-dimensional cuboidal GaAs quantum dots (QDs). The QDs are subject to an in-plane magnetic field. As the field ... -
Anomalous oriented attachment growth behavior on SnO2 nanocrystals
Royal Society of Chemistry (2011)This work reports a detailed characterization of an anomalous oriented attachment behaviour for SnO2 nanocrystals. Our results evidenced an anisotropic growth for two identical 〈110〉 directions, which are equivalent according ... -
Anserine and carnosine determination in meat samples by pure micellar liquid chromatography
Elsevier (2008)Anserine and carnosine, which are both imidazole dipeptides, are natural antioxidants that are present in some types of meat. A pure micellar liquid chromatographic procedure was developed using a micellar mobile phase of ... -
Antiviral leather: A functional coating based on SiO2-AgNPs to eliminate pathogens
Elsevier (2023-09-12)A bovine leather material functionalized with SiO2-Ag nanoparticles (NPs) composite, which possesses highly efficient antimicrobial activity against the SARS-CoV-2 virus and Staphylococcus aureus (S. aureus) bacteria, has ... -
An improved method for preparation of SrTiO3 nanoparticles
Elsevier (2011)SrTiO3 nanoparticles were synthesized for the first time via a modified polymeric precursor method. The samples were characterized by thermogravimetry, X-ray diffraction (XRD), BET surface area, micro-Raman spectroscopy, ... -
Application of a liquid chromatographic procedure for the analysis of penicillin antibiotics in biological fluids and pharmaceutical formulations using sodium dodecyl sulphate/propanol mobile phases a.
© 2010 Elsevier (2011-07)A direct injection liquid chromatography procedure was developed for the simultaneous determination of four penicillin antibiotics (amoxicillin, ampicillin, cloxacillin and dicloxacillin) in pharmaceutical formulations and ... -
Application of catalytic ozonation using Y zeolite in the elimination of pharmaceuticals in effluents from municipal wastewater treatment plants
Elsevier (2024)Catalytic ozonation using faujasite-type Y zeolite with two different SiO2/Al2O3 molar ratios (60 and 12) was evaluated for the first time in the removal of 25 pharmaceutical compounds (PhCs) present in real effluents from ... -
Application of micellar liquid chromatographic method for rapid screening of ceftriaxone, metronidazole, amoxicillin, amikacin and ciprofloxacin in hospital wastewater from Sagar District, India
Elsevier (2022-06)The present research work mainly highlights the simultaneous detection of five antibiotics i.e., ceftriaxone (CTX), metronidazole (MTZ), amoxicillin (AMX), amikacin (AMK) and ciprofloxacin (CPFX) in hospital wastewater located ... -
Application of multiple headspace-solid-phase microextraction followed by gas chromatography-mass spectrometry to quantitative analysis of tomato aroma components
Elsevier (2009)The objective of this paper is to investigate the potential of multiple headspace-solid-phase microextraction (MHS-SPME) for the determination of volatile compounds in complex matrix samples. A method based on MHS-SPME for ... -
Application of ultra-high-pressure liquid chromatography-tandem mass spectrometry to the determination of multi-class pesticides in environmental and wastewater samples. Study of matrix effects
Elsevier (2009)An ultra-high-pressure liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for the determination of 37 pesticides (herbicides, insecticides and fungicides) in environmental and wastewater has been developed. ... -
Are analysts doing method validation in liquid chromatography?
(2015-06-22)Method validation is being applied in the reported analytical methods for decades. Even before this protocol was defined, authors already somehow validated their methods without full awareness. They wished to assure the ... -
Are Heme-Dependent Enzymes Always Using a Redox Mechanism? A Theoretical Study of the Kemp Elimination Catalyzed by a Promiscuous Aldoxime Dehydratase
American Chemical Society (2020-09-03)The design of biocatalysts is a goal to improve the rate, selectivity and environmental friendship of chemical processes in biotechnology. In this regard, the use of computational techniques has provided valuable assistance ... -
Assessment of the health and antioxidant trade-off in gilthead sea bream (Sparus aurata L.) fed alternative diets with low levels of contaminants
Elsevier (2009)The aim of the present work was to analyze the effect of partial and total replacement of fish oil (FO) by a blend of vegetable oils on the health and antioxidant status of gilthead sea bream (Sparus aurata L.) fed primarily ... -
Auger Recombination Suppression in Nanocrystals with Asymmetric Electron–Hole Confinement
WILEY-VCH Verlag (2012)Type II and quasi-type II nanocrystals with thick shells exhibit reduced blinking. However, after a number of monolayers, the influence of the shell thickness is found to vanish. Using a two-band Kane Hamiltonian, it is ...