Determination of Minerals on Nutrition Label by Atomic Absorption Spectroscopy
摘要
The objective of this laboratory exercise is to use atomic absorption spectroscopy to determine the contents of minerals required on a nutrition label of foods (sodium, calcium, iron, and potassium). The samples suggested for analysis include both liquid and solid food products, with sample preparation by both dry and wet ashing. Mineral results are compared between: (1) dry and wet ashed samples, (2) laboratory data compared to data on the food’s nutrition label, and (3) laboratory data compared to USDA database values.