通过重复激光技术荧光测定各种材料中的痕量铀(VI)。
Fluorescence determination of trace amounts of uranium(VI) in various materials by a repetitive laser technique.
作者信息
Romanovskaya G I, Pogonin V I, Chibisov A K
机构信息
V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Academy of Sciences of the USSR, Moscow 117975, USSR.
出版信息
Talanta. 1987 Jan;34(1):207-10. doi: 10.1016/0039-9140(87)80028-0.
A laser-induced fluorescence method (LFM) is described for determination of trace amounts of uranium(VI), with a detection limit of 4 x 10(-11) g/ml. A repetitive pulsed laser, time discrimination and an averaging technique are used. The optimum time discrimination is obtained when the uranyl ion is complexed with phosphoric acid or sodium polysilicate. LFM does not need a preconcentration step or separation of uranium from interfering elements. The time needed for analysis is only 1-2 min.
本文描述了一种用于测定痕量铀（VI）的激光诱导荧光法（LFM），其检测限为4×10^(-11) g/ml。该方法使用了重复脉冲激光、时间分辨和平均技术。当铀酰离子与磷酸或聚硅酸钠络合时，可获得最佳的时间分辨。LFM不需要预浓缩步骤或从干扰元素中分离铀。分析所需时间仅为1-2分钟。
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