NANOCOLOR® Sulfide 3
Photometric determination of sulfide
DIN method: N,N-Dimethyl-1,4-phenylene diamine reacts with hydrogen sulphide to form a compound which changes to leucomethylene blue. This compound is oxidised to methylene blue using iron(III) ions (Reaction basis according to DIN 38405-D26/27).
Sulphide is measured in an acidic medium; vigorous mixing can cause evaporation of gaseous hydrogen sulphide which escapes analysis.
Data and ordering information
REF 985 073
Type tube test 0-73
Range 0.05 – 3.00 mg/L S2-
Sufficient for 20 determinations
Shelf life at least 3 years
Sea water suitability yes, after dilution (1+3)