Determination of total sulfur concentrations in different types of vinegars using high resolution flame molecular
1Department of Chemistry, Faculty of Arts and Sciences, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey.
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).
Related Concept Videos
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
Atomic Absorption Spectroscopy: Atomization Methods
Flame Photometry: Lab
Volatilization
Atomic Fluorescence Spectroscopy
Atomic Absorption Spectroscopy: Overview
When irradiated by EMR of a particular wavelength, these...


