Synchronous scanning phosphorimetry for the selective determination of chrysene: a metrological study

Autor:	Alessandra L. M. C. da Cunha, Roberta L. Ziolli, Ricardo Q. Aucélio
Jazyk:	angličtina
Rok vydání:	2010
Předmět:	Chrysene Analyte Chromatography Analytical chemistry General Chemistry chrysene Phenanthrene High-performance liquid chromatography lcsh:Chemistry chemistry.chemical_compound synchronous scanning room-temperature phosphorimetry lcsh:QD1-999 chemistry metrological study Fish Acetonitrile
Zdroj:	Química Nova, Volume: 33, Issue: 6, Pages: 1301-1306, Published: 2010 Química Nova v.33 n.6 2010 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Química Nova, Vol 33, Iss 6, Pp 1301-1306 (2010)
Popis:	Room-temperature phosphorimetry was used to quantify trace levels of chrysene in sugar-cane spirits and in fish bile. A selective phosphorescence enhancer (AgNO3) and synchronous scanning allowed the detection of ng amounts of chrysene. Accuracy (113 ± 17%) and selectivity was evaluated using the CRM-NIST-1647d - Priority Pollutant Polycyclic Aromatic Hydrocarbons in acetonitrile. Analysis of sugar-cane spirit samples enabled recovery of 108 ± 18% which agreed with the one achieved using HPLC. Method's uncertainty was equivalent to 3.4 ng of the analyte, however, the analyte pre-concentration (SPE) improved sensibility and minimized the relative uncertainty. Characterization and homogeneity studies in fish bile were also performed.
Databáze:	OpenAIRE
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