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[Objective] The research aimed to choose appropriate conditions for determining trace antimony in RADIX ACHYRANTHIS BIDENTATAE from different producing areas by hydride generation-atomic fluorescence spectrometry, and to measure the content of trace antimony. [Method] Effects of factors such as acidity, concentration of potassium borohydride and pre-reducing agent on the analytical sensitivity were investigated. [Result] Under the optimum conditions, parameters of antimony were: detection limit of 0.05 μg/L, linear range of 0.05-100 μg/L, relative standard deviation value (RSD) of 1.36%, recovery of 93.1%-106.5% and antimony content of 0.059-0.772 μg/g. [Conclusion] The method was simple and easy to be operated, rapid, high sensitive and less interference.
[Objective] The research aimed to choose appropriate conditions for determining trace antimony in RADIX ACHYRANTHIS BIDENTATAE from different producing areas by hydride generation-atomic fluorescence spectrometry, and to measure the content of trace antimony. [Method] Effects of factors such as acidity, concentration of potassium borohydride and pre-reducing agent on the analytical sensitivity were investigated. [Result] Under the optimum conditions, parameters of antimony were: detection limit of 0.05 μg / L, linear range of 0.05-100 μg / L, relative standard deviation value (RSD) of 1.36%, recovery of 93.1% -106.5% and antimony content of 0.059-0.772 μg / g [Conclusion] The method was simple and easy to be operated, rapid, high sensitive and less interference.