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以HNO_3-HClO_4消化试样,用H_2O_2还原Se(Ⅵ)至Se(Ⅳ)后,以氢化物原子吸收法(HGAA)和2,3-二氨基萘荧光法(DANMF)分别测定了血清和猪肝中总硒。试验表明,两种方法有相当的检出限、准确度和精确度。对猪肝标样GBW 08551和血清样(非标准样)的分析,方法的RSD(n=5)猪肝样(Se为0.94μg·g~(-1))为4％,血清样(Se为0.08μg·ml~(-1)”)为2％。
The samples were digested with HNO_3-HClO_4 and Se (Ⅳ) was reduced with H_2O_2. Sera and pigs were determined by hydride generation atomic absorption spectrometry (HGAA) and 2,3-diaminonaphthalene fluorescence spectrometry (DANMF) Total selenium in liver. Experiments show that both methods have comparable detection limits, accuracy and accuracy. For pig liver sample GBW 08551 and serum samples (non-standard samples), the method of RSD (n = 5) was 4% for pig liver samples (Se 0.94 μg · g -1) 0.08 μg · ml -1 ") was 2%.