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High current microsecond pulsed hollow cathode lamp excited ionic fluorescence spectrometry of alkaline earth elements in inductively coupled plasma with a fassel-torch

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碱土金属的强短脉冲供电空心阴极灯激发常规炬管电感耦合等离子体离子荧光光谱初步研究.pdf (193.0Kb)
Date
2006
Author
Zhang, Shaoyu
张绍雨
Gong, Zhenbin
弓振斌
Huang, Benli
黄本立
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  • 化学化工-已发表论文 [14469]
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Abstract
High current microsecond pulsed hollow cathode lamp (HCMP-HCL) excited ionic fluorescence spectrometry (IFS) of alkaline earth elements in inductively coupled plasma (ICP) with a Fassel-torch has been investigated. In wide condition ranges only IFS was observed, whilst atomic fluorescence spectrometry (AFS) was not detectable. More intense ionic fluorescence signal was observed at lower observation heights and at lower incident RF powers. Without introduction of any reduction organic gases into the ICP, the limit of detection (LOD, 3 sigma) of Ba was improved by 50-fold over that of a conventional pulsed (CP) HCL with the Baird sleeve-extended torch. For Ca and Sr, the LODs by HCMP-HCL-ICP-IFS and CP-HCL-ICP-AFS show no significant difference. Relative standard deviations were 0.6%-1.4%(0.1-0.2 mu g(.)mL(-1), n = 10) for 5 ionic fluorescence lines. Preliminary studies showed that the intensity of ionic fluorescence could be depressed in the presence of K, Al and P.
Citation
SPECTROSCOPY AND SPECTRAL ANALYSIS,2006,26(2):331-335
URI
https://dspace.xmu.edu.cn/handle/2288/10864

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