Determination of sulfide and cyanide in drinking water GB575
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GB5750-2006 provides that the concentration of sulfide in drinking water should not be higher than 0.02mg / L, free cyanide should not be higher than 0.05mg / L. Both ions have significant redox properties and are weak or unresponsive to suppress the conductance detection. Therefore, the amperometric ampere mode can be used to detect these two ions sensitively. Using Ag working electrode, Pt auxil...