Determination of antimony by using tungsten trap atomic absorption spectrometry

2008-08-01
TİTRETİR DURAN, SERAP
Kenduezler, Erdal
Arslan, Yasin
KULA, İBRAHİM
Bakirdere, Sezgin
Ataman, Osman Yavuz
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.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY

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Citation Formats
S. TİTRETİR DURAN, E. Kenduezler, Y. Arslan, İ. KULA, S. Bakirdere, and O. Y. Ataman, “Determination of antimony by using tungsten trap atomic absorption spectrometry,” SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, pp. 875–879, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32526.