The contents of Cr(Ⅲ) and Cr(Ⅵ) in chromium-enriched foodstuffs were determined by graphite furnace atomic absorption spectrometry (GF-AAS), to make an accurate evaluation of the quality, including th
In this paper 1-(2-pyridylazo)-2-naphthol (PAN) and ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF4) were mixed with graphite powder to get a modified carbon paste electrode (PAN-1