Hello everyone
I will do a validation of carbonates and bicarbonates analysis in soils (through titration analysis) but I have found that would be some interferences of some ions present in the soil that can be contribute to the total amount of carbonates in soils.
Thank you so much for your help
Have a nice day (or nit')
Heavy metal ion interference can be overcome by adding NaCN as cyanide forms strong complexes with metals. Variable oxidation states of Mn may interfere with the indicator, which can be reduced by adding hydroxylamine hydrochloride, while the divalent Mn2+ is generally removed by potassium ferocyanide.
Do you know some article or standard method where I can find interferences or how I can eliminate them ?
Thank you ;)
The following links may be tried:
https://law.resource.org/pub/in/bis/S02/is.3025.21.2009.html
http://www.chem.elte.hu/w/gpch/tasks/gpch1997-hardness-ac.pdf
http://web.calstatela.edu/dept/chem/08fall/201-lab/calcium_experiment_xw.pdf
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