Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Study on the Analytical Performance of Double Membrane Desolvator(DMD) with Perfluoroalkoxy(PFA) and Microconcentric Nebulizer(MCN) in Inductively Coupled Plasma Atomic Emission Spectrometry

유도결합 플라스마 원자방출 분광법에서 perfluoroalkoxy(PFA) nebulizer와 microconcentric nebulizer(MCN)을 이용한 double membrane desolvator(DMD)의 분석능력연구

  • Sul, Choon-Kuen (Division of Natural Science Dankook University) ;
  • Lim, H.B. (Division of Natural Science Dankook University)
  • 설춘근 (단국대학교 자연과학부) ;
  • 임흥빈 (단국대학교 자연과학부)
  • Received : 2000.12.06
  • Published : 2001.02.25
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Abstract

In this work, analytical performance of a laboratory built double membrane desolvator (DMD) was studies using perfluoroalkoxy (PFA) nebulizer and microconcentirc nebulizer (MCN) in inductively coupled plasma atomic emission spectrometry. Compared with MCN, PFA nebulizer coupled to DMD showed similar analytical sensitivity for aqueous solution and better sensitivity for isopropyl alcohol. Since PFA resisted various acids, HCI, $H_2SO_4$ and HF solution were analyzed with less than 2% RSD. Rinse-out time for the signal reduction to 1% was obtained to be 35 s for PFA but about 45 s for MCN.

본 실험에서는 유도결합 플라스마 원자방출 분광법 (ICP-AES)에서 perfluoroalkoxy (PFA) nebulizer와 microconcentric nebulizer (MCN)을 이용하여 본 실험실에서 제작된 double membrane desolvator (DMD)의 분석능력을 연구하였다. MCN과 비교하여 PFA nubulizer는 수용액 시료의 경우에는 DMD-ICP-AES에서 비슷한 분석감도를 보였으나, isopropyl alcohol 시료에서는 좀 더 나은 분석감도를 보였다. PFA nebulizer는 여러 가지 산들에 견디기 때문에 HCI, $H_2SO_4$ 뿐만 아니라 HF 용액도 도입하여 분석할 수 있었는데, 모두 2% 미만의 상대표준편차로 분석되었다. 기억효과를 측정한 결과, 신호가 1% 미만으로 감소되는 rinse-out time은 PFA에서는 35초인 반면 MCN은 45초로 얻어졌다.

Keywords

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