Analysis of Melamine and Its Related Substances in Fertilizers

Recently, it has been confirmed that some granulated products of hydrated calcium cyanamide, which are created by adding water to calcium cyanamide, contain a significant amount of melamine. Given this fact, while there are at present no standard values for melamine in fertilizer, regulations are being discussed, and investigations are progressing with respect to the dynamics of melamine in soil and its transition to crops.
This article introduces an example of the analysis of melamine and related substances in fertilizers using an HPLC system, with reference to the fertilizer test methods (2012) under the supervision of the Japan‘s Food and Agricultural Materials Inspection Center (FAMIC).