火焰原子吸收光谱法测定红酒中微量元素的含量

Determination of the content of trace elements in red wine from different producing area by flame atomic absorption spectrometry

采用硝酸和高氯酸（4＋1）消解样品，火焰原子吸收光谱法（CPE-FAAs）测定不同产地红酒中微量元素Ca、Fe、Mg、Zn的含量。从4种不同产地红酒中各元素含量可看出，均含有丰富的Ca、Fe、Mg，而Zn的含量相对较少，其中产地为法国的葡萄酒中Ca和Fe的含量最高。方法回收率在99．55％～103．7％之间，RSD小于6．1％，具有高效、准确、简单、快捷、安全、精密度高等特点。测定结果满意。

Samples were digested by nitric acid and perchlorie acid （4 ＋ 1） in this experiment and the content of trace elements Ca, Fe, Mg and Zn in red wine from different regions were determined by flame atomic absorption spectrometry. The results showed that four types of red wine from different regions were also rich in trace dements Ca, Fe, Mg and low in element Zn. The content of trace elements Ca, and Fe in wine from French was highest. Recoveries were between 99.55 % - 103.7 % and RSD was less than 6.1%. This method is efficient, accurate, simple, fast and safe and the determination results are satisfying.