GONZÁLEZ GONZÁLEZ , Antonio Gustavo

The separation and quantitation of phosphorous oxoanions have been investigated by non-suppressed ion chromatogra- phy (IC) with conductometric detection using a modified gluconate-borate buffer as eluent. Hypophosphite being coeluted with the injection peak, its previous oxidation into phosphate is ...

En este trabajo se pasa revista a los factores que influyen en el proceso de calibrado en el análisis químico. Los postulados en los que se basa la aplicación del método de los mínimos cuadrados, la bondad del ajuste del modelo empleado y el análisis de residuales son objeto de consideración. Este último tópico constituye una poderosa...

The present paper describes a method based on the extraction of analytes by multiple hollow fibre liquid-phase microextraction and detection by ion-trap mass spectrometry and electron capture detectors after gas chromatographic separation. The limits of detection are in the range of 0.13-0.67 μg kg -1, five orders of magnitude lower than those...