•  
  •  
 

Turkish Journal of Chemistry

DOI

-

Abstract

A pneumatic flow injection-tandem spectrometer system, without a delivery pump, was used for the speciation of manganese (Mn). In this system the suction force of the pneumatic nebulizer of a flame atomic absorption spectrometer (FAAS) was used for solution delivery through the manifold. Mn(VII) and total Mn (Mn(VII) and Mn(II)) concentrations were determined using a UV-Vis spectrometer and FAAS, respectively. The Mn(II) concentration was determined by the difference between the two. The calibration curves were linear up to 15.00 mg L^{-1} for Mn(VII) and total Mn, with a detection limit of 0.08 mg L^{-1} and 0.05 mg L^{-1} for Mn(VII) and Mn, respectively. The mid-range precision and accuracy were < 1.89% and \pm 2.50% for the 2 species, respectively, at a sampling rate of 80 samplings h^{-1}. This system was used for the determination of Mn(VII) and Mn(II) in spiked and natural water, as well as industrial water.

Keywords

Pneumatic flow injection analysis, tandem spectrometer, manganese, speciation, UV-Vis spectrometer, flame atomic absorption spectrometer

First Page

293

Last Page

299

Download

Included in

Chemistry Commons

Share

COinS