原子吸收光谱法测定蔬菜中的锌、钙、铜、铅和镉  

Determination of Zn,Ca,Cu,Pb and Cd in Vegetables by Atomic Absorption Spectrometry

作　　者：刘洋[1] 张晓倩[1] 李梦婷[1] 孙守钧[1] 

机构地区：[1]天津农学院农学与资源环境学院,天津300384

出　　处：《食品研究与开发》2015年第17期52-54,共3页Food Research and Development

摘　　要：采用硝酸-高氯酸消解蔬菜样品,火焰原子吸收光谱法测定蔬菜中锌、钙和铜,石墨炉原子吸收光谱法测定蔬菜中的铅和镉。在最佳实验条件下对小白菜、香菜、西红柿和水萝卜4种蔬菜进行测定,含量分别为锌：90.333、74.417、54.417、76.667 mg/kg,钙：2.820 2、0.273 9、9.074 3、8.167 9 mg/kg,铜：11.618、22.768、8.618、14.844 mg/kg,铅：0.145 9、0.000 0、0.393 0、0.000 0 mg/kg和镉：0.687 1、0.360 6、0.058 0、0.626 0 mg/kg。加标回收率为98.15%-101.96%。The amounts of Zn, Ca and Cu in 4 kinds of vegetables were determined by flameatomic absorption spectrometry, and the contents of Pb and Cd in 4 kinds of vegetables were determined by graphite furnace atomic absorption spectrometry. Vegetables were dissolved with nitricacid and perchloricacid. Contents of metalsinchives, celery and cabbage were obtained 90.333,74.417,54.417,76.667 mg/kg for Zn, 2.820 2,0.273 9,9.074 3,8.167 9 mg/kg for Ca, 11.618,22.768,8.618,14.844 mg/kg for Cu, 0.145 9, 0.000 0, 0.393 0,0.000 0 mg/kg for Pb and 0.687 1,0.360 6,0.058 0,0.626 0 mg/kg for Cd, respectively. Recovery was between98.15 % and 101.96 %.

关 键 词：原子吸收光谱法 金属元素 蔬菜 

分 类 号：O657.31[理学—分析化学]