The chemical properties including toxicity of selenium depend on the concentration and chemical structure present in the natural environment. Inorganic selenium is more toxic than organic selenium; thus, the accurate determination of inorganic selenium in various sample has been needed. HG-AAS, HPLC-ICP-MS, and GC-MS are the current methods for the determination of inorganic selenium. However, these methods have the disadvantage of expensive equipment, complicated sample preparation, and long analysis time. LIBS coupled with ion exchange membrane was used for the determination of inorganic selenium. The detection limit of inorganic selenium by the analytical method was 11.21 mg/kg, and the recoveries of 50 and 100 mg/kg Se(VI) were 98.5 % and 101.80 %, respectively. The speciation method is cost-effective, simple, and not labor intensive for the quantitation of inorganic selenium.

中文翻译：

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通过固相萃取和激光诱导击穿光谱快速简单地形成硒

包括硒毒性在内的化学性质取决于自然环境中存在的浓度和化学结构。无机硒比有机硒毒性更大；因此，需要准确测定各种样品中的无机硒。HG-AAS、HPLC-ICP-MS 和 GC-MS 是目前测定无机硒的方法。但这些方法存在设备昂贵、样品制备复杂、分析时间长等缺点。LIBS结合离子交换膜用于无机硒的测定。该分析方法对无机硒的检出限为 11.21 mg/kg，50 和 100 mg/kg Se(VI) 的回收率分别为 98.5% 和 101.80%。该物种形成方法具有成本效益、简单、