采用 HR-CS GF AAS 法评估市售椰汁和工业化椰奶中的镉和铅。
Assessment of cadmium and lead in commercial coconut water and industrialized coconut milk employing HR-CS GF AAS.
机构信息
Departamento de Química Analítica, Instituto de Química, Universidade Federal da Bahia, Grupo de Pesquisa em Química Analítica, Campus Universitário de Ondina, 40170-115 Salvador, Bahia, Brazil.
Departamento de Química Analítica, Instituto de Química, Universidade Federal da Bahia, Grupo de Pesquisa em Química Analítica, Campus Universitário de Ondina, 40170-115 Salvador, Bahia, Brazil; Universidade do Estado da Bahia, Departamento de Ciências Exatas e da Terra, Cabula, 41195-001 Salvador, Bahia, Brazil.
出版信息
Food Chem. 2019 Jun 30;284:259-263. doi: 10.1016/j.foodchem.2018.12.116. Epub 2019 Jan 14.
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 Cd and <0.70-36.32 μg L Pb for natural coconut water samples (n = 14); <0.06-1.49 μg L Cd and 6.57-29.02 μg L Pb for industrialized water coconut samples (n = 16); and <0.10-5.93 ng g Cd and <0.85-22.41 ng g 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).
本工作建立了一种采用高分辨率连续光源石墨炉原子吸收光谱法（HR-CS GF AAS）对经最小化处理的天然椰汁、工业化椰汁和椰奶样品中 Cd 和 Pb 进行测定的分析方法。该方法应用于在巴西萨尔瓦多采集的 46 个样品中。获得的浓度范围为：天然椰汁样品（n=14）中 Cd 浓度为 0.42-18.72μg/L，Pb 浓度为<0.70-36.32μg/L；工业化椰汁样品（n=16）中 Cd 浓度为<0.06-1.49μg/L，Pb 浓度为 6.57-29.02μg/L；椰奶样品（n=16）中 Cd 浓度为<0.10-5.93ng/g，Pb 浓度为<0.85-22.41ng/g。对于所有样品，Cd 和 Pb 的浓度均低于巴西卫生监督局（Agência Nacional de Vigilância Sanitária，ANVISA）推荐的最大耐受值。
Zotero 插件