图共 7个 表共 1
    • 图  FIG. 483.  FIG. 483.

      Figure FIG. 483..  FIG. 483.

    • 图  1  样品溶液pH值对汞-双硫腙络合物吸光度的影响

      Figure 1.  Effect of pH value on absorbance of Hg-dithizone complex

    • 图  2  反应时间对汞-双硫腙络合物吸光度的影响

      Figure 2.  Effect of reaction time on absorbance of Hg-dithizone complex

    • 图  3  样品体积对汞-双硫腙络合物吸光度的影响

      Figure 3.  Effect of sample volume on absorbance of Hg-dithizone complex

    • 图  4  碱和双硫腙质量浓度对汞-双硫腙络合物吸光度的影响  

      Figure 4.  Effect of mass concentration of alkaline and dithizone on absorbance of Hg-dithizone complex

    • 图  5  富集双硫腙、汞-双硫腙络合物(碱洗/未碱洗)的膜固相光谱图

      Figure 5.  Solid phase spectra of enriched dithizone、Hg-dithizone complex (alkaline washing/without alkaline washing)

    • 图  6  Hg2+质量浓度与吸光度之间的关系

      Figure 6.  Relationship between Hg2+ mass concentration and absorbance of solution

    • Sampleρ(Hg2+)/(μg·L–1)R/%RSD/%
      (n=5)
      ρ(ICP-MS)/(μg·L−1)R(ICP-MS)/%
      AdditionDetection
      River-water
      109.7697.69.688.484.0
      1515.2101.54.0213.791.3
      2020.1100.43.8418.291.0
      Tap-water
      1010.8108.02.068.585.0
      1513.791.32.4012.583.3
      2019.396.56.1918.190.5

      表 1  所建立方法对河水和自来水样品中Hg2+浓度的测定

      Table 1.  Determination of Hg2+ concention in river and tap-water samples