title: Practical applications of element-specific detection by inductively coupled plasma atomic emission spectroscopy and inductively coupled plasma mass spectrometry to ion chromatography of foods.
abstract: Three practical examples are presented to demonstrate the utility of element-selective detection for ion chromatography (IC). The determination of As species in a liquid health food supplement by IC with inductively coupled plasma atomic emission spectroscopy (IC-ICP-AES) is shown to confirm results obtained for total As. IC-ICP-AES is also used to investigate the identity of an unknown peak in a sample of shrimp commercially treated with tripolyphosphate. Finally, results are presented for the determination of residual bromate in baked goods by IC with inductively coupled plasma mass spectrometry detection.
authors.affiliation: National Forensic Chemistry Center, Food and Drug Administration, Cincinnati, OH 45202.
authors.forename: D T
authors.initials: DT
authors.lastname: Heitkemper
authors.forename: L A
authors.initials: LA
authors.lastname: Kaine
authors.forename: D S
authors.initials: DS
authors.lastname: Jackson
authors.forename: K A
authors.initials: KA
authors.lastname: Wolnik
mesh_terms: D000818:Animals; D001151:Arsenic / Q000032:analysis; D001939:Bread / Q000032:analysis; D001959:Bromates / Q000032:analysis; D001965:Bromides / Q000032:analysis; D001967:Bromine Radioisotopes; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D033364:Decapoda / Q000737:chemistry; D005503:Food Additives / Q000032:analysis; D005504:Food Analysis / Q000295:instrumentation*; D007202:Indicators and Reagents; D013058:Mass Spectrometry; D013054:Spectrophotometry, Atomic
chemical_list: D001959:Bromates; D001965:Bromides; D001967:Bromine Radioisotopes; D005503:Food Additives; D007202:Indicators and Reagents; C019536:potassium bromate; D001151:Arsenic