6533b7d9fe1ef96bd126cd12
RESEARCH PRODUCT
GFAAS determination of selenium in infant formulas using a microwave digestion method.
Reyes BarberáRosaura FarréAmparo AlegríaA Morenosubject
Detection limitMicrowave ovenSpectrophotometry AtomicAnalytical chemistrychemistry.chemical_elementInfantHydrogen PeroxideNitric Acidlaw.inventionchemistry.chemical_compoundSeleniumchemistrylawNitric acidHumansSample preparationInfant FoodMagnesiumMicrowave digestionGraphite furnace atomic absorptionAtomic absorption spectroscopyMicrowavesSeleniumPalladiumFood Sciencedescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-01-01 | Die Nahrung |