| 光谱学与光谱分析 |
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| Non-Nascent Hydrogen Mechanism of Plumbane Generation |
| ZOU Yan, JIN Fu-xia, CHEN Zhi-jiang, QIU De-ren, YANG Peng-yuan* |
| Department of Chemistry, Fudan University, Shanghai 200433, China |
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Abstract The mechanism of plumbane generation in dichromate system was studied via investigation of the relationship between the plumbane yield and the molar number of the reactants. A flow injection hydride generator was used in the study. Reactant moler number was calculated by the injected volume and the reactant concentration, and the plumbane yield was measured via an AAS spectrometer equipped with an electrothermal quartz tube atomizer. Experimental results show that the acid was first used for the neutralization of NaOH and successively participated in the redox reaction of borohydride with dichromate with a constant molar ratio of 9.95±0.42(expressed in terms of mean±standard deviation). At the same time，plumbane generation was displayed as synchronously taking place with the redox reaction, and the yield increased with the increase of acid. The mechanism of plumbane generation was thus deduced as an induced reaction or a catalytic reaction by the redox reaction. Up to this end, the non-nascent hydrogen mechanism of hydride generation has been verified for all the IVA elements.
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Received: 2004-03-26
Accepted: 2004-06-28
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Corresponding Authors:
YANG Peng-yuan
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| Cite this article: |
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ZOU Yan,JIN Fu-xia,CHEN Zhi-jiang, et al. Non-Nascent Hydrogen Mechanism of Plumbane Generation[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(10): 1720-1723.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I10/1720 |
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