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    • CL17/CL17D檢測儀美國哈希hach余(總)氯分析儀
      CL17/CL17D檢測儀美國哈希hach余(總)氯分析儀

      美國哈希hach余(總)氯分析儀 CL17/CL17D余氯檢測/測定儀采用DPD(N,N-二乙基-1,4-苯二胺)比色法檢測氯的濃度。由于加入緩沖試劑,樣品被調整到一定的pH值范圍,DPD會與水樣中的余氯或總氯反應生成紫紅色化合物,余氯檢測儀采用分光光度法測量其吸光度變化從而得出水樣中余氯/總氯濃度。

      更新時間:2019-06-15型號:CL17/CL17D檢測儀
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