Application Note: Determination of vitamin D and previtamin D in food products
4 July 2022

This application note demonstrates an improvement in the current LC-MS method for vitamin D analysis. It demonstrates the determination of total vitamin D by individually measuring the vitamin D and previtamin D in food products. Previtamin D was directly measured in the total vitamin D analysis, eliminating the error that could arise from not measuring previtamin D. This method will be less affected by the heating history of food products.