title: Determination of total sulfur concentrations in different types of vinegars using high resolution flame molecular absorption spectrometry.
abstract: Total sulfur concentrations in vinegars were determined using molecular absorption of carbon monosulfide (CS) determined with a high-resolution continuum source flame atomic absorption spectrometer. The molecular absorption of CS was measured at 258.056nm in an air-acetylene flame. Due to non-spectral interference, as well as the different sensitivities to some sulfur compounds, all sulfur species were oxidized to sulfate using a HNO3 and H2O2 mixture and the analyte addition technique was applied for quantification. The limit of detection (LOD) and limit of quantification (LOQ) were 11.6 and 38.6mgL(-1), respectively. The concentrations of sulfur in various vinegars ranged from ⩽LOD to 163.6mgL(-1).
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey. Electronic address: nil.ozbek@itu.edu.tr.
authors.forename: Nil
authors.initials: N
authors.lastname: Ozbek
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey. Electronic address: akmans@itu.edu.tr.
authors.forename: Suleyman
authors.initials: S
authors.lastname: Akman
mesh_terms: D019342:Acetic Acid / Q000032:analysis*; D057230:Limit of Detection; D013054:Spectrophotometry, Atomic; D013455:Sulfur / Q000032:analysis*
chemical_list: D013455:Sulfur; D019342:Acetic Acid
keywords: Carbon monosulfide; High-resolution continuum source molecular absorption spectrometry; Sulfur; Vinegar