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A novel analytical system involving hydride generation and gold-coated W-coil trapping atomic absorption spectrometry for selenium determination at ng l(-1) level
Date
2008-08-01
Author
Kula, I.
Arslan, Y.
Bakirdere, S.
Ataman, Osman Yavuz
Metadata
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A novel analytical technique was developed where gaseous hydrogen selenide formed by sodium tetra hydrobora te reduction is transported to and trapped on a resistively heated gold-coated W-coil atom trap for in situ preconcentration. Gold coating on W-coil was prepared by using an organic solution of Au. The atom trap is held at 165 degrees C during the collection stage and is heated up to 675 degrees C for revolatilization; analyte species formed are transported to an externally heated quartz T-tube where the atornization takes place and the transient signal is obtained. The carrier gas consisted of 112.5 ml min' At with 75 ml min(-1) H(2) during the collection step and 112.5 ml min(-1) At with 450 ml min(-1) H(2) in the revolatilization step. The half width of the transient signal obtained is less than 0.5 s. The RSD for the measurements was found to be 3.9% (n = 11) for 0.10 mu g l(-1) Se using peak height measurements.
Subject Keywords
Gold-coated tungsten coil atom trap
,
Selenium
,
Atomic absorption spectrometry
,
Hydride generation
URI
https://hdl.handle.net/11511/32222
Journal
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
DOI
https://doi.org/10.1016/j.sab.2008,03.020
Collections
Graduate School of Natural and Applied Sciences, Article
Citation Formats
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BibTeX
I. Kula, Y. Arslan, S. Bakirdere, and O. Y. Ataman, “A novel analytical system involving hydride generation and gold-coated W-coil trapping atomic absorption spectrometry for selenium determination at ng l(-1) level,”
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
, vol. 63, no. 8, pp. 856–860, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32222.