摘要
建立一种电热解—原子吸收光谱法分析食用螺旋藻粉中痕量汞的方法,该方法汞的检出限为0.083 ng(3σ),加标回收率为89.5%～102.7%。该方法与传统的冷原子吸收光谱法对照,不需要进行样品前处理,经过t检验,结果无显著性差异,为螺旋藻粉产品中汞的含量检测提供了一种快速、准确的分析方法。另外对载气流量、样品中可能有的共存元素干扰以及样品取样量等因素进行讨论,最后对样品检测结果进行安全性评价和原因分析以及提出生产质量控制措施。
To establish a method of determination of trace mercury in food grade spirulina powder by electropyrolysis-atomic absorption spectrometry.The detection limit of mercury in the method is 0.083 ng（3 σ）.The recovery of standard addition is 89.5 %-102.7 %.Compared with the traditional cold vapor atomic absorption spectrometry（CVAAS）,the method need not the sample pretreatment and the comparative results are not significant difference through t test.It provides a rapid and accurate analytical method of mercury for the spirulina powder quality inspection.It also discusses the factors of coexisting elements which the samples may contain interference.Finally,it gives the safety evaluation,cause analysis of the testing results and production quality control measure.
出处
《食品研究与开发》
CAS
北大核心
2010年第12期172-175,共4页
Food Research and Development
关键词
食用螺旋藻粉
痕量汞
电热解—原子吸收光谱法
food grade spirulina powder
trace mercury
electropyrolysis-atomic absorption spectrometry
