This analysis is performed using atomic absorption spectrometry. Antimony is utilized in large-scale operations and for many technical applications, such as in the electronics industry as an alloy additive, in the production of ceramics and glass products as well as an additive in rubber and plastics. Antimony is not among the contaminants common to naturally occurring, uncontaminated surface waters and drinking water.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
The hydride technique is used to determine the concentration of antimony ions in the water sample. In this process, antimony ions are reduced by sodium tetrahydroborate in an acidic medium. This compound is then transferred using an inert gas into a heated quartz cuvette, is pyrolyzed and measured using AAS.
The absorbance is determined at a wavelength of 217.6 nm, and the antimony concentration is calculated using a reference curve.