摘要
通过使用微波消解、湿法消解两种不同的样品前处理方法,采用氢化物原子荧光光谱法测定菜籽油中总砷的含量,实验表明两种前处理方法得到的检测结果无显著性差异。其中,湿法消解的回收率略低于微波消解法,其测定值精密度也略低于微波消解法。从实验成本、效率、安全、环保等方面考虑,建议有条件的实验室可优先选择微波消解方法进行样品前处理。
Two different kinds of pretreatment methods for samples was used to pretreat samples of rapeseed oil,microwave digestion and wet digestion,total arsenic in rapeseed oil was determined by hydride atomic fluorescence spectrometer.The results shoued that the two pretreatment methods have no significant difference.While,the recovery rate with wet digestion was slightly lower than that with microwave digestion,and the precision of the measured was also slightly lower than that with microwave digestion.Therefore,it is recomended to use microwave digestion for sample pretreatment,considered the cost,efficient,safety and environment.
作者
邱艳
周天智
吴秋蓉
陈冉
李婕妤
陈军
刘丽英
Qiu Yan;Zhou Tianzhi;Wu Qiurong;Chen Ran;Li Jieyu;Chen Jun;Liu Liying(Hubei Sinograin Grain and oil quality supervision center Co.Ltd.430311)
出处
《粮食储藏》
2019年第2期41-43,46,共4页
Grain Storage
关键词
菜籽油
总砷
微波消解
湿法消解
rapeseed oil
total arsenic
microwave digestion
wet digestion
