Merck, 1144040001, Iron Test

General description
Method: colorimetric with color card and comparator block with short test tubes 0.25 - 0.5 - 1.0 - 2.0 - 3.0 - 5.0 - 7.5 - 10 - 15 mg/l Fe MQuant®
The MQuant® Iron test (formally MColortest®) measures bivalent and trivalent iron in its dissolved form as well as fresh colloidal iron(III) hydroxide in
Groundwater and surface water, seawater
Drinking water and mineral water
Waters from aquaculture
Boiler and boiler feed water, cooling water
Industrial water
Wastewater and percolating water
Food after appropriate sample pretreatment

Method
All iron ions are reduced to iron(II) ions by a thioglycolate buffer. These react with 1,10-phenanthroline to form a red complex. The iron concentration is measured semiquantitatively by visual comparison of the color of the measurement solution with the color fields of a color card. The unique brilliance of the print and their fine color graduation allow precise analyses, even at the lower end of the concentration range.
Legal Information
MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany