HPLC: determination of urea content in urea-based fertilizers in accordance with AOAC official method 2003.14

Fertilizers are agrochemicals that are added to soil or land to increase its fertility. They can be broken down into two major categories: organic (natural, carbon containing) or synthetic. Nitrogen, phosphorus, and potassium are the primary nutrients in fertilizers. This application note demonstrates the suitability of the PerkinElmer LC 300 HPLC System to determine free urea in urea-based fertilizers via the Association of Official Analytical Chemists (AOAC) Official Method 2003.14 through the analysis of five commercially available fertilizer products.