MACHEREY-NAGEL Visocolor ECO Chlorine 2 Test Kit User Manual
MACHEREY-NAGEL Visocolor ECO Chlorine 2 Test Kit Method At a pH value of 6.2 to 6.5 in a phosphate buffered system, free chlorine reacts with N,N-diethyl-1,4-phenylene diamine (DPD) and forms a red-violet dye. In the presence of iodide ions, the…