Multicomutation flow system for manganese speciation by solid phase extraction and flame atomic absorption spectrometry

作者：Tobiasz Anna^*; Soltys Monika; Kurys Ewa; Domagala Karolina; Dudek Adamska Danuta; Walas Stanislaw

来源：Spectrochimica Acta Part B: Atomic Spectroscopy , 2017, 134: 11-16.

DOI：10.1016/j.sab.2017.05.005

• Manganese
• Speciation
• Preconcentration
• Flow-injection analysis
• FAAS

In the paper an application of solid phase extraction technique for speciation analysis of manganese in water samples with the use of flame atomic absorption spectrometry is presented. Two types of sorbents, activated silica gel and Dowex 1 x 4, were used respectively for simultaneously Mn2+ and MnO42- retention and preconcentration. The whole procedure was realized in multicomutation flow system. Different conditions like: type and concentration of eluent, sample pH and loading time were tested during the study. Under appropriate conditions, it was possible to obtained enrichment factors of 20 and 16 for Mn(II) and Mn(VII), respectively. Precision of the procedure was close to 4% (measured as relative standard deviation), whereas the detection limit (3 sigma) was 1.4 mu g.L-1 for Mn(II) and 4.8 mu g.L-1 for Mn(VII).

• 出版日期2017-8-1