title: GFAAS determination of selenium in infant formulas using a microwave digestion method.
abstract: A method for determining the selenium content of infant formulas is proposed. It includes wet digestion with nitric acid and hydrogen peroxide in medium pressure teflon bombs in a microwave oven and determination by graphite furnace atomic absorption spectrometry (GFAAS). The absence of interferences is checked. Values obtained for the limit of detection (19.4 ng/g), precision (RSD = 2.2%) and accuracy by analysis of a reference material show that the method is reliable.
authors.affiliation: Department of Nutrition and Food Chemistry, University of Valencia, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Alegria
authors.forename: R
authors.initials: R
authors.lastname: Barbera
authors.forename: R
authors.initials: R
authors.lastname: Farré
authors.forename: A
authors.initials: A
authors.lastname: Moreno
mesh_terms: D006801:Humans; D006861:Hydrogen Peroxide / Q000737:chemistry; D007223:Infant; D007225:Infant Food / Q000032:analysis*; D008274:Magnesium / Q000737:chemistry; D008872:Microwaves; D017942:Nitric Acid / Q000737:chemistry; D010165:Palladium / Q000737:chemistry; D012643:Selenium / Q000032:analysis*; D013054:Spectrophotometry, Atomic
chemical_list: D017942:Nitric Acid; D010165:Palladium; D006861:Hydrogen Peroxide; D012643:Selenium; D008274:Magnesium