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KMID : 1059519970410060292
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Journal of the Korean Chemical Society
1997 Volume.41 No. 6 p.292 ~ p.298
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Development of an Axially Viewed Inductively Coupled Plasma for Atomic Emission Spectrometry and Comparison between the Detection Limits of Lead
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Cho Sung-il
Han Myung-Sub
Lee Sang-Hwa
Lee Joung-Hae
Woo Jin-Chun
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Abstract
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An ICP(Inductively Coupled Plasma) emission spectrometer was developed with an axially viewed ICP source incorporated by a 5-turned induction coil and a torch, outer quartz tube of which was 50 mm longer than that used in conventional ICP/AES(Inductively Coupled Plasma Atomic Emission Spectrometry). The Optimization of the system has been performed in terms of the determination of signal-to-noise ratio and background intensity at various rf powers, sample flow rates, argon gas flow rates and cut-off gas flow rates. The spectro-analytical characteristics of the spectrum obtained between 200 and 500 nm was revealed to be similar compared with a vertically viewed ICP source. The detection limit of Pb(Ⅱ) at 220.35 nm was 11 ppb which was 5 times lower than that obtained with a vertically viewed ICP source.
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