The use of HPLC-NAA and HPLC-ICP-MS for the speciation of As in infant food
| Autor: | Halina Polkowska-Motrenko, Ewelina Chajduk |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
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chemistry.chemical_element 01 natural sciences High-performance liquid chromatography Arsenicals Mass Spectrometry Arsenic Analytical Chemistry 0404 agricultural biotechnology Cacodylic Acid Humans Neutron activation analysis Inductively coupled plasma mass spectrometry Chromatography High Pressure Liquid media_common Chromatography Chemistry 010401 analytical chemistry Extraction (chemistry) Infant food and beverages Neutron Activation Analysis 04 agricultural and veterinary sciences General Medicine 040401 food science 0104 chemical sciences Speciation Certified reference materials Infant Food Hplc icp ms Food Science |
| Zdroj: | Food Chemistry. 292:129-133 |
| ISSN: | 0308-8146 |
| Popis: | Arsenic and its inorganic species: As (III), As (V), dimethylarsenic acid (DMA) and monomethylarsenic acid (MMA) were determined in hypoallergenic formulas and grain porridges commercially available on Polish market, dedicated for infant 0–8 months. After quantitative extraction with 0.5% HNO3, separation of individual species was performed by high performance liquid chromatography (HPLC), and their determination by neutron activation analysis (NAA) and inductively coupled plasma mass spectrometry (ICP-MS). Due to relatively low content of As in the analysed samples, it was only possible to determine DMA using the HPLC-ICP-MS mode. HPLC separation coupled with off-line determination by NAA enabled the determination of more extracted As species (especially inorganic) with good accuracy. Certified reference material (CRM) Rice Flour SRM 1568b (NIST) was used for the validation of both procedures. |
| Databáze: | OpenAIRE |
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