Search Results - "Ayala, J.H."

Analytical methods applied to the determination of heterocyclic aromatic amines in foods by Sanz Alaejos, M., Ayala, J.H., González, V., Afonso, A.M.

“…Analytical aspects concerning the heterocyclic aromatic amines (HAAs) determination in foods are reviewed. Sample pre-treatment procedures such as…”
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Solid-phase microextraction coupled with high-performance liquid chromatography for the analysis of heterocyclic aromatic amines by Cárdenes, Lourdes, Ayala, Juan H, Afonso, Ana M, González, Venerando

“…Solid-phase microextraction (SPME) coupled with high-performance liquid chromatography (HPLC) with UV diode array detection (DAD) for the analysis of…”
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Determination of polycyclic aromatic hydrocarbons in seawater by high-performance liquid chromatography with fluorescence detection following micelle-mediated preconcentration by Pino, V, Ayala, J.H, Afonso, A.M, González, V

“…In this work, the nonionic surfactant polyoxyethylene-10-lauryl ether has been used for the extraction and preconcentration of 14 polycyclic aromatic…”
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Polycyclic Aromatic Hydrocarbons in Smoke Used to Smoke Cheese Produced by the Combustion of Rock Rose (Cistus monspeliensis) and Tree Heather (Erica arborea) Wood by Conde, Francisco J, Ayala, Juan H, Afonso, Ana M, González, Venerando

“…In this work, the polycyclic aromatic hydrocarbons (PAHs) and their methyl derivatives concentrations have been determined in smoke from the rock rose and tree…”
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Protolytic equilibria of indole and several indolecarboxylic acids in micellar media by Linares, R.M., González, A., Ayala, J.H., Afonso, A.M., González, Venerando

“…The influence of two cationic micellar systems on the absorption and fluorescence spectra and on the acid-base equilibria of indole and indole-2-, 3-, 4- and…”
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Biosynthesis of antitumoral and bactericidal sanguinarine by García, Víctor P, Valdés, F, Martín, R, Luis, J C, Afonso, A M, Ayala, J H

“…A simple, rapid, and reliable TLC method for the separation and determination of sanguinarine has been established. This intensively studied biologically…”
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Degradation of carbaryl in natural waters: enhanced hydrolysis rate in micellar solution by Gonzalez, V. (University of La Laguna, La Laguna, Tenerife, Spain), Ayala, J.H, Afonson, A.M

“…Fluorimetric measurements were used to monitor the effects of various factors on the rate of hydrolysis of the carbamate insecticide, carbaryl, in samples of…”
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