Abstract Hydride generation (HG) of bismuth was accomplished in non-aqueous media by using solid reductant of potassium borohydride (KBH4) as a derivation reagent. The riched micelle phase of surfactant Triton X-114 was used as the non-aqueous media for the chemical vapor generation (CVG), and atomic fluorescence spectrometry (AFS) was used for the elemental determination. The analyte ions were firstly extracted into the non-aqueous media from the bulk aqueous phase of analyte/sample solution via a rapid cloud point extraction (RCPE) process and then directly mixed with the solid reductant KBH4 to generate volatile bismuth hydride in a specially designed reactor, which was then rapidly transported to a commercial atomic fluorescence spectrometer for detection. Under the optimal conditions, the limit of detection (LOD) for bismuth was 0.08 μg/L. Compared to conventional HG-AFS, the efficiency of non-aqueous phase HG accomplished using solid reductant and the analytical performance of the developed method was considerably improved.

中文翻译：

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非水相氢化物的产生及原子荧光光谱法测定痕量铋

摘要 以硼氢化钾（KBH4）的固体还原剂为衍生试剂，在非水介质中完成了铋的氢化物生成（HG）。表面活性剂 Triton X-114 的富胶束相用作化学蒸汽发生 (CVG) 的非水介质，原子荧光光谱法 (AFS) 用于元素测定。分析物离子首先通过快速浊点萃取 (RCPE) 工艺从分析物/样品溶液的本体水相中萃取到非水介质中，然后直接与固体还原剂 KBH4 混合，以特殊设计的方式生成挥发性氢化铋。反应器，然后将其快速运送到商用原子荧光光谱仪进行检测。在最佳条件下，铋的检测限 (LOD) 为 0.08 μg/L。