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High current microsecond pulsed hollow cathode lamp excited inductively coupled plasma ionic fluorescence spectrometry of Eu,Yb,Ca,Sr and Ba with an extended-sleeve torch

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加长炬管中Ca_Sr_Ba_Eu_Yb的强_省略_极灯激发电感耦合等离子体离子_.pdf (195.8Kb)
Date
2001
Author
Zhang, SY
张绍雨
Huang, BL
黄本立
Gong, ZB
弓振斌
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  • 化学化工-已发表论文 [14235]
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Abstract
Inductively coupled plasma ( ICP) is a powerful atomizer for atomic fluorescence spectrometry ( AFS) but high degree of ionization in high temperature of plasma at lower observation height and easy combination with oxygen at high observation height significantly decrease fluorescence intensity of refractory elements. Inoic fluorescence spectrometry (IFS) of Eu, Yb,Ca,Sr and Ba was investigated with high current microsecond pulsed (HCMP) hollow cathode lamps (HCLs) and an extended-sleeve torch adopted in commercial Baird Plasma AFS 2000 fluorescence spectrometer. Without introduction of any organic gas or solvent into the plasma, the detection limits (DLs) with HCMP-HCL-IFS was improved by about 1.5 order of magnitude (37x) for Sr, by over 2 orders of magnitude for Ba, and by nearly 1 order of magnitude for Eu and Yb as compared to those of conventionally pulsed (ICP-HCL-AFS). The HCMP IFS DLs of Eu and Yb were even superior to those of dye laser excited IFS reported in literatures.
Citation
SPECTROSCOPY AND SPECTRAL ANALYSIS,2001,21(5):632-636
URI
https://dspace.xmu.edu.cn/handle/2288/12535

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