当前学科:环境监测
  • 题目: 单选
    硼氢化钾-硝酸银分光光度法测定水中痕量砷,当取水样体积为250ml,用10mm比色皿时,该方法的最低检出浓度为()mg/L,测定上限为()mg/L.

      A . 0.0001,0.004
      B . 0.0002,0.008
      C . 0.0003,0.0016
      D . 0.0004,0.012

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