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Assessment of cadmium and lead in commercial coconut water and industrialized coconut milk employing HR-CS GF AAS
- Paixão, Luciane B., Brandão, Geovani C., Araujo, Rennan Geovanny O., Korn, Maria Graças A.
- Food chemistry 2019 v.284 pp. 259-263
- atomic absorption spectrometry, cadmium, coconut milk, coconut water, industrialization, lead, monitoring, Brazil
- In this work, an analytical method for the determination of Cd and Pb in natural coconut water samples, industrialized coconut water samples and coconut milk using high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS), after minimum treatment of the sample was developed. The analytical method was applied to 46 samples collected in Salvador, Bahia (Brazil). The ranges of concentrations obtained were: 0.42–18.72 μg L−1 Cd and <0.70–36.32 μg L−1 Pb for natural coconut water samples (n = 14); <0.06–1.49 μg L−1 Cd and 6.57–29.02 μg L−1 Pb for industrialized water coconut samples (n = 16); and <0.10–5.93 ng g−1 Cd and <0.85–22.41 ng g−1 Pb for coconut milk samples (n = 16). For all samples, Cd and Pb concentrations were below the maximum tolerated values recommended by Brazilian Health Surveillance Agency (Agência Nacional de Vigilância Sanitária, ANVISA).