QQ客服 官方微博 反馈留言

	Microwave-induced plasma boosted microsecond-pulse glow discharge optical emission spectrometry
	Su, YX ; Yang, PY ; Chen, DY ; Zhang, ZG ; Zhou, Z ; Wang, XR ; Wang XR(王小如) ; Huang, BL ; Huang BL(黄本立)
	1997
关键词	microsecond-pulse glow discharge microwave-induced plasma optical emission spectrometry tandem source excitation process
英文摘要	A microsecond-pulse (mu s-pulse) glow discharge (GD) source boosted by a microwave-induced plasma (MIP) has been developed and studied for optical emission spectrometry (OES), The excitation processes of the tandem GD source were investigated, The analytical characteristics of the GD-OES source in the presence and absence of the MIP were compared, including the operating parameters, signal-to-background ratios (S/B) and relative standard deviation (RSD), The results show that under a relatively low discharge pressure (<180 Pa), the mu s-pulse GD can couple fairly well with the MIP and emit intense analytical lines, When the GD source is operated under a pressure higher than 200 Pa, tao emission peaks appear, independent in time, for a given resonance atomic line, because sample atoms are independently structurally excited, first by the mu s-pulse GD and then by the MIP. The time interval between the tao peaks for Zn I 213.8 nm is longer than that for Cu I 324.7 nm, which is believed to be due to the faster diffusing velocity of copper atoms, When the mu s-pulse GD lamp is operated under a gas pressure higher than 220 Pa, the ion population is so high that Cu II ionic line at 224.7 nm 'becomes' two peaks because of a possible self-absorption. The results show that the supplementary nse of an MIP can eliminate the self-absorption of ionic and atomic lines, When the mu s-pulse GD source is coupled with the MTP, S/Bs are improved by a factor of more than one order of magnitude for several analytical lines. A short-term RSD of 0.2% is achieved for the 'mu s-pulse GD+MIP' configuration compared with that of 1.0% for 'mu s-pulse GD only' mode. The experimental results show that the MIP boosted mu s-pulse GD is a promising technique for solid sample and surface analysis.
语种	英语
出版者	ROYAL SOC CHEMISTRY
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1039/A700913E]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Su, YX,Yang, PY,Chen, DY,et al. Microwave-induced plasma boosted microsecond-pulse glow discharge optical emission spectrometry[J],1997.
APA	Su, YX.,Yang, PY.,Chen, DY.,Zhang, ZG.,Zhou, Z.,...&黄本立.(1997).Microwave-induced plasma boosted microsecond-pulse glow discharge optical emission spectrometry..
MLA	Su, YX,et al."Microwave-induced plasma boosted microsecond-pulse glow discharge optical emission spectrometry".(1997).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。