摘要
采用微波消解-原子吸收光谱法测定了高活性干酵母中铁、铜、锰、铅及镉5种微量元素含量.用微波消解法处理样品,具有简便、快速的优点.方法的标准曲线线性关系良好（r =0.995～0.999）,方法加标回收率在96.0％～103.0％,相对标准偏差（RSD,n=6）在2.0％～4.9％.表明方法具有较好的准确性和重复性,用于实际酵母样品的测定,获得了满意的结果.
Five trace elements（iron, copper, manganese, lead and cadmium） in yeast were determined by microwave digestion-atomic absorption spectrometry. The results show that this method is rapid, simple and efficient （five elements per test）, and it had a good linear relationship（ r =0. 995~0. 999）. The recovery was in the range of 96.0% ~103.0% and the relative standard deviation （RSD, n = 6 ） was 2.0~4.9%. The good features of the proposed method indicated that it has good accuracy and repeatability. This approach provides a viable alternative to the determination of Fe, Cu, Mn, Pb and Cd in yeast samples with satisfactory results.
出处
《中国无机分析化学》
CAS
2015年第1期1-3,共3页
Chinese Journal of Inorganic Analytical Chemistry
基金
国家质检总局课题(2014IK125)资助
关键词
微波消解
原子吸收光谱
酵母
微量元素
microwave digestion
atomic absorption spectrometry
yeast
trace elements
