IntroductionThe method is used for the determination of the mass fraction of all primary and secondary nutrients (macronutrients) in fertilizers by capillary electrophoresis. The method allows the determination of such macronutrients as ammonium nitrogen (ammoniacal nitrogen, NH4-N), nitrate nitrogen (NO3-N), phosphorus (P or P2O5), potassium (K or K2O) as well as sodium, magnesium, calcium, sulfur, chlorine (chloride), fluorine (fluoride).
By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).
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