氢化物原子荧光光谱法测定海洋生物体中的痕量硒

Determination of Trace Amounts of Selenium in Marine Organism by Hydride Atomic Fluorescences Spectrometry

采用硝酸-高氯酸处理样品,以氢化物原子荧光光谱法,测定海洋生物体中的痕量硒,在选定的试验条件下,方法检出限为3μg/kg;进行大量的海洋生物体样品测定,加标回收率为84.5%～117%,相对标准偏差为0.14%～7.43%,结果与参考值一致。

By hyderide atomic fluorescences spectrometry we determined the trace amounts of selenium in marine organisms which were treated with nitricacid and perchloric acid. The detection limit of this method is 3 μg/kg and the recoveries are in the range of 84.5 %～117 % in the optimumconditions. The method has been applied to analyze a large number of marine organisms, the RSD are in range of 0.14 %～7.43 %.The results of this method obtained are in conformity with the reference value.