摘要
研究了各类海藻中总硒的含量及硒的赋存形态的分布。采用连续浸提法研究各海藻中硒的赋存形态,经湿法消化后,采用氢化物-原子荧光分光光度法测定各组分中的含硒量。结果表明,12种海藻样品中,总硒含量范围为:0.0268～0.2234μg/g,海藻中硒的各赋存形态分布情况:碱溶态>残渣态>水溶态>盐溶态>乙醇态。
The total selenium and the distribution of combined forms in marine algae were studied.The sequential chemical extractions had been developed for partitioning selenium in marine algae into five fractions： ethanol soluble,water soluble,salt soluble,NaOH solution soluble and residual.The selenium contents of all fractions were determined by hydride generation atomic fluorescence spectrometry （HG-AFS） after wet-digestion.The contents of total selenium of the 12 kinds of marine algae samples were in the range from 0.0268 to 0.2234μ/g,and the sum of selenium in the fractions from high to low was in the order of NaOH solution soluble 〉 residual 〉 water soluble 〉 salt soluble 〉 ethanol soluble.
出处
《食品工业科技》
CAS
CSCD
北大核心
2010年第4期352-354,共3页
Science and Technology of Food Industry
关键词
海藻
氢化物-原子荧光分光光度法
硒
赋存形态
marine algae
hydride generation atomic fluorescence spectrometry
selenium
combined form
