摘要
通过电热板直接消化法和微波消解法两种消化方式测定大米和面粉中的镉和砷,掌握两种样品前处理方式的特点,通过试验过程中的现象和上机后测定的试验结果数据,分析不同消化方式的优缺点,找出最佳的试验条件与方法;针对微波消解法出现的试验失败的现象及结果,提出了两种合理、可行的成功试验改进方案,并探讨性的分析试验失败的可能原因,从而完善两种消化方式对镉和砷的测定。
Cadmium and arsenic in rice and flour was determined by microware digestion and direct digestion with electrothermal board. Mastering the characters of the pre-disposal mode for these samples, and depending on the phenomena during the experiment and the results determined by the machine, the authors can analyse the merit and disadvantage of the different digestion mode to find out the most excellent conditions and methods for experiment, then give out reasonable and applicable method based on unsuccessful experiments, analyse the reasons for unsuccessful experiments, and perfect two digestion methods which the authors used to determine cadmium and arsenic.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2007年第1期177-179,共3页
Spectroscopy and Spectral Analysis
基金
黑龙江省青年科学技术专项资金项目(QC05C68)资助
关键词
消化方式
大米
面粉
镉
砷
Digestion mode
Rice
Flour
Cadmium
Arsenic