使用微波消解方法通过石墨炉原子吸收光谱法测定婴儿配方奶粉中的硒
GFAAS determination of selenium in infant formulas using a microwave digestion method.
作者信息
Alegria A, Barbera R, Farré R, Moreno A
机构信息
Department of Nutrition and Food Chemistry, University of Valencia, Spain.
出版信息
Nahrung. 1994;38(4):382-5. doi: 10.1002/food.19940380406.
A method for determining the selenium content of infant formulas is proposed. It includes wet digestion with nitric acid and hydrogen peroxide in medium pressure teflon bombs in a microwave oven and determination by graphite furnace atomic absorption spectrometry (GFAAS). The absence of interferences is checked. Values obtained for the limit of detection (19.4 ng/g), precision (RSD = 2.2%) and accuracy by analysis of a reference material show that the method is reliable.
提出了一种测定婴儿配方奶粉中硒含量的方法。该方法包括在微波炉中使用中压聚四氟乙烯消解罐，用硝酸和过氧化氢进行湿法消解，并通过石墨炉原子吸收光谱法（GFAAS）进行测定。检查是否存在干扰。通过分析参考物质获得的检测限（19.4 ng/g）、精密度（RSD = 2.2%）和准确度值表明该方法可靠。
Zotero 插件