000058642 001__ 58642
000058642 005__ 20170831220643.0
000058642 037__ $$aTAZ-TFM-2016-838
000058642 041__ $$aeng
000058642 1001_ $$aGarde Casasnovas, Raúl
000058642 24200 $$aGraphite furnace atomic absorption spectrometry for the selective detection and quantification of nanoparticles
000058642 24500 $$aEspectrometría de absorción atomica en horno de grafito para la detección y cuantificación selectiva de nanopartículas
000058642 260__ $$aZaragoza$$bUniversidad de Zaragoza$$c2016
000058642 506__ $$aby-nc-sa$$bCreative Commons$$c3.0$$uhttp://creativecommons.org/licenses/by-nc-sa/3.0/
000058642 520__ $$aIn this work ionic gold and gold nanoparticle (AuNPs) solutions/suspensions of different sizes have been studied by means of high-resolution continuum source graphite furnace atomic absorption spectrometry (HR CS GFAAS), without any separation step or any extra technique. The application of slow atomization heating ramps and atomization temperatures of around 2200ºC in the absence of chemical modifier allows the differentiation of ions and nanoparticles according to the signal profile. In addition, the size of AuNPs can be estimated using the time of appearance of the maximum peak height, a result of 27.7 ± 8.8 nm was found for a sample provided by NIST of a nominal value of 30 nm diameter. The analytical evaluation gave a limit of detection of 5.5 pg (0.55 µg L-1) and a linear range up to 10 ng (1000 µg L-1). Also it was successfully evaluated by spiking a soft water (certified reference material KEJIM 02). Finally, the possibility of determining samples mixed with both ionic and NPs showed difficulties if quantitative information is required, but the behaviour is as predicted by summing the individual signals of this species.
000058642 521__ $$aMáster Universitario en Materiales Nanoestructurados para Aplicaciones Nanotecnológicas (Nanostructured Materials for Nanotechnology Applications)
000058642 540__ $$aDerechos regulados por licencia Creative Commons
000058642 700__ $$aResano Ezcaray, Martín$$edir.
000058642 7102_ $$aUniversidad de Zaragoza$$bQuímica Analítica$$cQuímica Analítica
000058642 8560_ $$f612737@celes.unizar.es
000058642 8564_ $$s1537459$$uhttps://zaguan.unizar.es/record/58642/files/TAZ-TFM-2016-838.pdf$$yMemoria (eng)
000058642 909CO $$ooai:zaguan.unizar.es:58642$$pdriver$$ptrabajos-fin-master
000058642 950__ $$a
000058642 951__ $$adeposita:2017-01-26
000058642 980__ $$aTAZ$$bTFM$$cCIEN