|Range||MDL||Method||Kit Catalog No.||Refill Catalog No.|
|0-2 ppm||0.15 ppm||Periodate||K-6502||R-6502|
|0-60 ppm||9 ppm||Periodate||K-6502D||R-6502D|
|Range||Method||Kit Catalog No.|
Surface and ground waters rarely contain more than 1 mg/L of soluble or suspended manganese. Manganese can act as an oxidizing or a reducing agent depending on its valence state. Manganese is also used in the manufacture of batteries and as an alloying metal in the manufacture of steel and aluminum. The National Secondary Drinking Water Standard for manganese is 0.05 mg/L, as higher concentrations will impart a foul taste to water and discolor laundry and porcelain surfaces.
The Periodate Method
Reference: APHA Standard Methods, 14th< ed., Method 314 C (1975).
CHEMetrics' tests employ the periodate chemistry that measures soluble manganese compounds but does not differentiate the various valence states. Results are expressed as ppm (mg/L) Mn.
Permanganate (MnO4) develops approximately 25% more color with this reagent than other forms of manganese, causing a high bias. If the sample is known to contain manganese in the form of permanganate only, multiplying test results by 0.8 will improve the accuracy of the results.