Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Analytical Application of Glow Discharge Atomic Absorption Spectroscopy (GD-AAS) Using Three Types of Jet Configurations Under Power Mode

  • Hwang, Jun Ho (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
  • Lee, Ki Beom (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
  • Kim, Min Su (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
  • Lee, Seong Ro (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
  • Kim, Hasuck (Department of Chemistry and Center for Molecular Catalysis, Seoul National University) ;
  • Kim, Hyo Jin (Department of Pharmacy, Dong Duck Women's University) ;
  • Lee, Gae Ho (Department of Chemistry, Chung Nam National University)
  • Received : 1995.08.20
  • Published : 1995.12.25
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Abstract

Three anode configurations of six-jet, cone-jet and cylindrical-jet are tested for their analytical performance under power mode operation. The effect of pressure, power and gas flow rate on atomic absorption signals have been studied. The increase of atomic absorption signal of sample element is observed at a fixed pressure in all configurations as the gas flow rate increase up to 300-600 seem, and as the power dissipated in the glow discharge cell increase. The lower the pressure is in the glow discharge cell at a fixed discharge power and argon flow rate, the greater the absorbance of sample element is. The optimum conditions are taken from these data and a calibration curve of Cu in low-alloy steel sample is obtained. In this calibration curve, six-jet configuration shows the best analytical results varies as the sample element.

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Acknowledgement

Supported by : Ministry of Education