粮食与饲料工业
糧食與飼料工業
양식여사료공업
CEREAL & FEED INDUSTRY
2014年
5期
61-62,65
,共3页
原子荧光光谱法%微波消解%汞%糙米
原子熒光光譜法%微波消解%汞%糙米
원자형광광보법%미파소해%홍%조미
atomic fluorescence spectrophotometry%microwave digestion%mercury%brown rice
采用微波消解氢化物原子荧光法测定糙米中的汞，研究了微波消解样品的最佳条件。在优化实验条件下，糙米中汞的检出限为0．05μg/L，相对标准偏差为4．53％，回收率为92．00％～110．67％。用标准物质进行对照，其测定值在给定的标准值不确定度范围之内。该法具有快速、简便、重现性好、准确度高、无污染等优点。
採用微波消解氫化物原子熒光法測定糙米中的汞，研究瞭微波消解樣品的最佳條件。在優化實驗條件下，糙米中汞的檢齣限為0．05μg/L，相對標準偏差為4．53％，迴收率為92．00％～110．67％。用標準物質進行對照，其測定值在給定的標準值不確定度範圍之內。該法具有快速、簡便、重現性好、準確度高、無汙染等優點。
채용미파소해경화물원자형광법측정조미중적홍，연구료미파소해양품적최가조건。재우화실험조건하，조미중홍적검출한위0．05μg/L，상대표준편차위4．53％，회수솔위92．00％～110．67％。용표준물질진행대조，기측정치재급정적표준치불학정도범위지내。해법구유쾌속、간편、중현성호、준학도고、무오염등우점。
Mercury in brown rice was determined by microwave digestion and hydride generation atomic fluorescence spec-trometry,and the optimized conditions were studied.Under the conditions,the detecting limit of mercury was 0.05μg/L,the relative standard deviation was 4.53%and the recovery rate was in the rage of 92.00%~110.67%.Comparison with standard substances,the measured values obtained were within the scope of given uncertainty.The advantages of the method were fast, easy,good repeatability,high accuracy,no pollution,and etc.
