Sequential Determination of Cd, Cu and Pb in Tea Leaves by Slurry Introduction to Thermospray Flame Furnace Atomic Absorption Spectrometry
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A simple procedure for the sequential determination of Cd, Cu and Pb in tea leaves by slurry introduction to thermospray flame furnace atomic absorption spectrometry was developed. Detection limits were 0.05 mg kg−1 for Cd, 2.1 mg kg−1 for Cu and 0.68 mg kg−1 for Pb using 0.67 % (m/v) slurries (100 mg/15 mL).
KeywordsFlame furnace Atomic absorption spectrometry Slurry introduction Tea Fast sequential Thermospray
The authors thank the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) for the financial support (grants 07/04515-4 and 09/09636-0) and to the fellowship to KM (grant 09/01447-3). The authors are also grateful to the Conselho Nacional de Desenvolvimento Tecnológico (CNPq) (grant 304060/2009-7).
Conflict of Interest
Kelber Miranda declares that he has no conflict of interest. Edenir R. Pereira-Filho declares that he has no conflict of interest. This article does not contain any studies with human or animal subjects.