| Autor: |
Santos WMD; Laboratório de Tecnologia dos Medicamentos (LTM), Universidade Federal de Pernambuco (UFPE), Recife, Brazil., de Souza ML; Laboratório de Tecnologia dos Medicamentos (LTM), Universidade Federal de Pernambuco (UFPE), Recife, Brazil., Nóbrega FP; Laboratório de Tecnologia dos Medicamentos (LTM), Universidade Federal de Pernambuco (UFPE), Recife, Brazil., de Sousa ALMD; Laboratório de Tecnologia dos Medicamentos (LTM), Universidade Federal de Pernambuco (UFPE), Recife, Brazil., De França EJ; Centro Regional de Ciências Nucleares do Nordeste (CRCN-NE), Comissão Nacional de Energia Nuclear (CNEN), Recife, Brazil., Rolim LA; Central de Análise de Fármacos, Medicamentos e Alimentos (CAFMA, Universidade Federal do Vale do São Francisco (UNIVASF), Petrolina, Brazil)., Rolim Neto PJ; Laboratório de Tecnologia dos Medicamentos (LTM), Universidade Federal de Pernambuco (UFPE), Recife, Brazil. |
| Abstrakt: |
Dietary supplements composed by the combination of a calcium salt with cholecalciferol (vitamin D 3 ) are widely used for improving bone health in conditions caused by the deficiency of these compounds in the body. Historically, these supplements have been linked to quality and safety issues. In the case of calcium salts, the presence of potentially toxic contaminants such as lead (Pb) has already been alerted by health authorities from different countries. Meanwhile, cholecalciferol is very unstable under inadequate manufacturing and storage conditions. The content of both compounds in commercial dietary supplements is often found to be in disagreement with the label claims, which can lead to a deficient or excessive nutrient intake by consumers. In this scenario, analyzing these compounds is still a difficult and time-consuming task, which usually requires specific pretreatment procedures and multiple analytical methods due to the inorganic nature of calcium and the organic nature of cholecalciferol. Therefore, this article reviews the analytical methods, described in official compendia and scientific literature, for the determination of calcium salts and cholecalciferol in dietary supplement formulations. We also approached the sample preparation procedures highly required due to the matrix complexity of these materials. |
