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在装有DETA吸附剂和六羟锑酸钾盐的微型交换柱中,具有选择性吸附作用的锑(Ⅲ)通过流动注射火焰原子吸收光谱仪对锑进行检测,吸附的锑由硝酸滤出后直接通过原子吸收光谱仪进行测定。在流动注射原子吸收光谱程序中对锑检测极限是0.9μg/L,而直接注射进石墨炉原子吸收光谱程序中对锑的检测极限是0.8μg/L。浓度为10μg/L的锑的检测精度是5.2%(相对标准偏差n=5)。由于锑的总量由石墨炉原子吸收光谱仪直接测定,所以锑(Ⅴ)浓度可通过不同的方式计算:流动注射原子吸收光谱法程序和石墨炉原子吸收光谱法技术可用于对锑无机物的检测。
Antimony (III) with selective adsorption was detected by flow injection flame atomic absorption spectrometry in a micro-exchange column containing DETA adsorbent and potassium hexao-antimonate. The antimony adsorbed was filtered off with nitric acid and directly The measurement was carried out by atomic absorption spectrometry. The limit of detection for antimony was 0.9 μg / L in the flow injection AAS procedure, whereas the limit of detection for antimony was 0.8 μg / L for direct injection into a graphite furnace atomic absorption spectrometry procedure. The detection accuracy of antimony at a concentration of 10 μg / L was 5.2% (relative standard deviation n = 5). Because the total amount of antimony is determined directly by graphite furnace atomic absorption spectrometry, the concentration of antimony (V) can be calculated in different ways: flow injection atomic absorption spectrometry and graphite furnace atomic absorption spectrometry can be used for the detection of antimony inorganics .