中文摘要：

标准参考材料和不同地质的样品被系统 A 溶解(混合氮并且高氯酸酸)并且系统 B (混合氮，高氯酸和氟氢的酸)，并且在所有样品的全部的 Se 被氢化物产生测量在有 thiol 棉花纤维( TCF )的集中以后的原子荧光 spectrometry ( HG-AFS )。二个消化方法获得的分析结果在好同意(在误差限度以内) 为大多数样品，特别地因为那些推荐了价值。二个方法决定的 Se 集中具有没有差别，并且相关系数是 0.9986；为 0.04 亩 g/g Se 的决心的相对标准差(RSD ) 是系统 A 的 10.2%.The 恢复率，由标准增加的方法的 B 分别地是 96%-106% 和 99%-104% 。

英文摘要：

Standard reference material and different geological samples were dissolved by system A （the mixture of nitric and perchloric acids） and system B （mixture of nitric, perchloric and hydrofluoric acids）, and total Se in all samples was measured by hydride-generation atomic fluorescence spectrometry （HG-AFS） after concentration with thiol cotton fiber （TCF）. The analytical results obtained by the two digestion method are in good agreement （within the limit of errors） for most of the samples, particularly for those having recommended values. The Se concentrations determined by the two methods are of no difference, and the correlation coefficient is 0.9986; the relative standard deviation （RSD） for the determination of 0.04 μg/g Se is 10.2%. The recovery rates of systems A and B by the standard-addition method were 96%-106% and 99%-104%, respectively.