Determination of Cd levels in smoke condensate of Brazilian and Paraguayan cigarettes by Thermospray Flame Furnace Atomic Absorption Spectrometry (TS-FF-AAS)

Autor(es)

Miranda, Kelber ^[1] ; Dionisio, Amalia G. G. ^[1] ; Pessoa Neto, Osmundo D. ^[1] ; Gomes, Marcos S. ^[1] ; Pereira-Filho, Edenir R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Ctr Ciencias Exatas & Tecnol, Dept Quim, Grp Anal Instrumental Aplicada, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Microchemical Journal; v. 100, p. 27-30, JAN 2012.
• Citações Web of Science: 13

Resumo

In this study, the concentrations of Cd in smoke condensate of Paraguayan and Brazilian full flavor normal size cigarettes were determined. A ``fishtail{''} chimney was used to confine and direct cigarette smoke to an impaction trap followed by 3 MCE (mixed cellulose ester) filters for smoke collection. The smoke condensate collected at the first two collection stages (chimney and impactor) was prepared as Triton X-100 slurry samples and the 3 MCE filters (third collection stage) used to collect smoke were microwave digested. Samples were analyzed by Thermospray Flame Furnace Atomic Absorption Spectrometry (TS-FF-AAS) for Cd and the results obtained were compared with Graphite Furnace Atomic Absorption Spectrometry (GFAAS). No significant differences were found between the values obtained with TS-FF-AAS and GFAAS at a 95% confidence level. The total concentration of Cd in the smoke of Brazilian and Paraguayan cigarettes tested ranged from 187 to 281 ng/cigarette and from 176 to 271 ng/cigarette, respectively. The LODs for Cd using TS-FF-AAS and GFAAS, were 5.8 and 1.5 ng/cigarette, respectively, for the analysis of smoke condensate from 1 cigarette. The main advantages of using the simple TS-FF-AAS system are its low running costs and the analysis time when compared to GFAAS. (C) 2011 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 07/04515-4 - Avaliação da combinação da espectrometria de absorção atômica com determinação sequencial e a espectrometria de absorção atômica com tubo na chama e aerossol térmico
• Beneficiário: Edenir Rodrigues Pereira Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/01447-3 - Uso de estratégias de calibração na determinação multi-elementar sequencial rápida de Cd, Cu, Pb e Zn em amostras biológicas e de alimentos com espectrometria de absorção atômica com forno tubular na chama e aerossol térmico (TS-FF-AAS) e padronização interna
• Beneficiário: Kelber dos Anjos de Miranda
• Modalidade de apoio: Bolsas no Brasil - Doutorado