Zobrazeno 1 - 10
of 19
pro vyhledávání: '"E, García Ayuso"'
Autor:
Alberto Zafra-Gómez, Luís E. García-Ayuso, Antonio Garballo, Alberto Navalón, Oscar Ballesteros
Publikováno v:
Biomedical Chromatography. 22:1186-1193
A new liquid chromatography–mass spectrometry (LC–MS) method has been developed and validated for the simultaneous determination of eight quinolone antibacterials for veterinary use in processed bovine milk samples. The quinolones studied include
Publikováno v:
Journal of Agricultural and Food Chemistry. 54:4531-4536
A fast, simple, and reliable method for the isolation and determination of the vitamins thiamin, riboflavin, niacin, pantothenic acid, pyridoxine, folic acid, cyanocobalamin, and ascorbic acid in food samples is proposed. The most relevant advantages
Autor:
E. Fernández-González, Antonio González-Casado, J. Aybar-Muñoz, Luis Cuadros-Rodríguez, L. E. García-Ayuso
Publikováno v:
Chromatographia. 61:505-513
A new method is presented for the rapid classification of vegetable samples into negatives and non-negatives depending on their pesticide residue content. The method uses intervals developed during qualitative method validation to accurately distingu
Autor:
Luis Cuadros-Rodríguez, E Fernández González, J Aybar Muñoz, L E García-Ayuso, A González Casado
Publikováno v:
Talanta. 60:433-447
A qualitative method for the screening of organophosphorus pesticides (OPs) that could present in different types of vegetables has been established and validated. A typical multi-residue extraction procedure of OPs using ethyl acetate and sodium sul
Publikováno v:
Analytica Chimica Acta. 457:247-256
The suitability of laser-induced breakdown spectroscopy (LIBS) for the characterization of jewellery products is demonstrated by the development of a method based on the use of an Nd-YAG laser (operating at 532 nm) which induces ablation of the mater
Publikováno v:
TrAC Trends in Analytical Chemistry. 20:28-34
New leaching approaches, with similar performance to conventional Soxhlet extraction but modified to allow assistance by focused microwaves (FM) irradiation, are reviewed. The most relevant advantages of the FM-assisted Soxhlet extraction (FMASE) tec
Publikováno v:
Scopus-Elsevier
Digital.CSIC. Repositorio Institucional del CSIC
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Digital.CSIC. Repositorio Institucional del CSIC
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Soybean, rape and sunflower lipids have been extracted with a focused microwave-assisted Saxhlet extractor. The main factors affecting extraction efficiency, namely microwave irradiation power, number of cycles and microwave irradiation time were opt
Publikováno v:
The Analyst. 125:317-322
Changes to a commercial Soxwave-100 focused microwave device were made in order to improve both safety and speed of the conventional acid pre-treatments. The changes allowed the conventional procedure (in which the sample is mixed with the appropriat
Publikováno v:
J. Anal. At. Spectrom.. 15:587-593
The application of laser induced breakdown spectrometry for the quantitative determination of gold and silver in Au–Ag–Cu alloys is proposed. Laser induced plasma emission spectra in the ultraviolet region were studied in order to characterize th
Publikováno v:
Analytica Chimica Acta. 382:309-316
The operating variables affecting the performance of a conventional Soxhlet extractor modified for application of focused microwaves on the sample chamber has been evaluated. An experimental approach based on a central composite design (CCD) and oliv