【摘要】 微波消解氢化物发生原子荧光光谱法 (HG- AFS)测定了鱼中痕量硒。硝酸 -过氧化氢消解样品 ,在3mol· L-1盐酸介质中产生氢化物 ,2 % (W/V) KBH4为还原剂 ,研究了微波消解条件、预还原条件。方法准确快速。用本法测定国家标准物质的结果与推荐值及国标法测定结果相一致更多还原

【Abstract】 The amount of trace Se in fish was determined by microwave digestion-hydride generation-atomic fluorescence spectrometry.The sample was digested with HNO 3-H 2O 2.The hydride was generated in 3mol·L -1 HCl media with 2%(W/V)KBH 4 as a reducing agent.The experimental conditions of microwave digestion and prereduction were studied.This method is accurate and rapid,and used to the standard reference material with good agreement to the certified values.更多还原