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Hach AutoCAT 9000
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Amperometric Titration Theory
Amperometric Titration Theory
Page 150
50081_Titration.fm
addition to adsorption, iodine can react with organic matter, forming carbon-iodine
bonds. This is one reason for the traditional preference of the back titration methods for
total chlorine in sewage treatment plant effluents.
Figure 3 Titration Curves Using Thiosulfate vs. PAO Titrants
a) Thiosulfate as Titrant
b) PAO as Titrant
Current (µAmp)
Current (µAmp)
Volume Titrant (mL)Volume Titrant (mL)

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