Sequential injection method for automatically monitoring COD, ammoniacal nitrogen and pH value of water and its integrated equipment

摘要: The invention discloses a method and equipment for automatically monitoring the water quality by measuring COD, ammonia nitrogen pH in using sequential injection analysis (SIA). Based on SIA, COD is measured combination of Ce oxidation process stopped flow-SIA method; SIA-indigo intensity blue light; spraying wall electrode method. measures at same time on-line SIA technique. provides features monitoring, simple structure, good accuracy repeatability.