Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Analytical Performance Evaluation of Pneumatic Nebulizers and Comparison of Their Characteristics

가압분무기의 성능 평가와 특성 비교

  • Park, Chang Joon (Division of Chemical Metrology and Material Evaluation, Korea Research Institute of Standards and Science) ;
  • Han, Myung Sub (Division of Chemical Metrology and Material Evaluation, Korea Research Institute of Standards and Science) ;
  • Song, Sun Jin (Department of Chemistry, Yonsei University) ;
  • Lee, Dong Soo (Department of Chemistry, Yonsei University)
  • 박창준 (한국표준과학연구원 물질량표준부) ;
  • 한명섭 (한국표준과학연구원 물질량표준부) ;
  • 송선진 (연세대학교 화학과) ;
  • 이동수 (연세대학교 화학과)
  • Received : 2002.01.25
  • Published : 2002.04.25
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Abstract

The analytical performance of four commercially-available pneumatic nebulizers(Meinhard, Cross-flow, Babington, ESI PFA) was evaluated using inductively coupled plasma-atomic emission spectrometry (ICP-AES) and ICP-mass spectrometry (ICP-MS) instruments. The performance of an inert concentric nebulizer and a modified conespray nebulizer, made in Korea Research Institute of Standards and Science (KRISS), is compared with that of the four commercial nebulizers. Variation of sample introduction efficiency was investigated as carrier argon pressure and sample uptake rate were changed. Variation of sensitivity, signal stability, blank intensity and oxide/hydride ratios were also studied when the nebulizers were connected to the ICP-MS and ICP-AES instruments. It was found that good analytical result such as high sensitivity, low blank, stable signal and so on can be obtained with judicious selection of the nebulizer depending on the type of sample, sample amount, type of analytical instrument and analyte.

유도결합 플라스마 질량분석기(ICP-MS)와 유도결합 플라스마 원자방출분광기 (ICP-AES)를 이용하여 상업적으로 유통되고 있는 4 종의 분무기(Meinhard, ESI PFA, Cross-flow, Babington)와 한국표준과학연구원(KRISS)에서 직접 제작한 분무기인 KRISS Inert 분무기와 KRISS conespray 분무기의 성능을 평가하였다. 각 분무기의 압력, 시료주입량의 변화에 따른 시료주입 효율을 조사하였으며 ICP-MS와 ICP-AES에 연결하였을 때 시료주입량의 변화에 따른 감도, 안정성, 바탕선 세기, 산화물과 수소화물의 생성 비율을 조사하였다. 시료의 종류, 시료 양의 제한성, 분석기기의 종류, 분석 원소에 따라 가장 적합한 분무기를 선택해야 높은 감도, 낮은 바탕값, 안정한 신호세기 등의 좋은 분석결과를 얻을 수 있음을 알 수 있었다.

Keywords

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