title: [Development of ICP-OES, ICP-MS and GF-AAS Methods for Simultaneous Quantification of Lead, Total Arsenic and Cadmium in Soft Drinks].
abstract: In this study, we developed methods to quantify lead, total arsenic and cadmium contained in various kinds of soft drinks, and we evaluated their performance. The samples were digested by common methods to prepare solutions for measurement by ICP-OES, ICP-MS and graphite furnace atomic absorption spectrometry (GF-AAS). After digestion, internal standard was added to the digestion solutions for measurements by ICP-OES and ICP-MS. For measurement by GF-AAS, additional purification of the digestion solution was conducted by back-extraction of the three metals into nitric acid solution after extraction into an organic solvent with ammonium pyrrolidine dithiocarbamate. Performance of the developed methods were evaluated for eight kinds of soft drinks.
authors.affiliation: National Institute of Health Sciences.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Kataoka
authors.forename: Takahiro
authors.initials: T
authors.lastname: Watanabe
authors.forename: Tomoko
authors.initials: T
authors.lastname: Hayashi
authors.forename: Reiko
authors.initials: R
authors.lastname: Teshima
authors.forename: Rieko
authors.initials: R
authors.lastname: Matsuda
mesh_terms: D001152:Arsenicals / Q000032:analysis* / Q000302:isolation & purification; D019187:Cadmium Compounds / Q000032:analysis* / Q000302:isolation & purification; D002253:Carbonated Beverages / Q000032:analysis*; D005504:Food Analysis / Q000379:methods*; D005506:Food Contamination / Q000032:analysis*; D007854:Lead / Q000032:analysis* / Q000302:isolation & purification; D013058:Mass Spectrometry / Q000379:methods*; D013054:Spectrophotometry, Atomic / Q000379:methods*
chemical_list: D001152:Arsenicals; D019187:Cadmium Compounds; D007854:Lead