Determination of antimony by using tungsten trap atomic absorption spectrometry


Titretir S. , Kenduezler E., Arslan Y., Kula I., Bakirdere S., Ataman O. Y.

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, cilt.63, ss.875-879, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 63 Konu: 8
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.sab.2008.03.021
  • Dergi Adı: SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
  • Sayfa Sayıları: ss.875-879

Özet

An electrically heated tungsten coil was used as a trap in the determination of antimony. The technique consists of three steps. Initially, SbH(3) is formed by hydride generation procedure; then the analyte species in vapor form are transported to W-coil trap heated at 370 degrees C. Following the preconcentration step, the trap is heated to 895 degrees C; analyte species are revolatilized and transported to the flame-heated quartz atom cell where atornization and the formation of signal take place. The experimental parameters were optimized both for trap and no-trap studies. The most important experimental parameters are concentrations of HCI and NaBH4 solutions. H2 and At gas flow rates. and collection and revolatilization temperatures of W-coil. Accuracy was tested using a certified reference material, waste water EU-L-1. Limit of detection for the system is 16 ng 1- 1 using a sample of 36 ml collected in 4.0 min. Enhancement factor in sensitivity was 17. (c) 2008 Elsevier B.V. All rights reserved.