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

Química Nova

Ziolli, Roberta L.¹  Cunha, Alessandra L. M. C. da¹  Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brasil¹  Aucélio, Ricardo Q.¹ 

关键词: synchronous scanning room-temperature phosphorimetry;    metrological study;    chrysene.;   

DOI  :  10.1590/S0100-40422010000600016

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

Unknown