coulometric chloride

• generator electrode - anode
• indicator electrode - cathode
• process

  Constant electric charge passed between silver generator electrodes (coulometric component)

  Silver ions combined with chloride in sample to create silver chloride

  Excess silver ions cause increase in current to indicator electrode and shuts off instrument (amperometric component)
• Concentration of chloride is directly proportional to the time elapsed
• Diluting solution: nitric-acetic acid