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- W2349918287 abstract "Objective To develop feasible gold deposition technology on the inner wall of the quartz capillary,which is used for gas detection and analysis by laser Raman. Methods Gold plating was studied with quartz glass first and an optimal technology was achieved after the determination of condition parameters for hydroxylation,silanization,gold nanoparticles modification and wet plating. Then this process was applied to the quartz capillary after adjustment of relevant parameters. The gilded quartz capillary was used for gas analysis through laser Raman measurements,and the enhancement effect of scattering signals was analyzed. Results The concentration of sodium hydroxide,the flow rate and flow time of solution in the capillary obviously affected the adsorption of gold nanoparticles. The optimal technology for gold plating inside the quartz capillary was as following: 5 mol / L Na OH treatment for 1 min→APTMS / IPA alkylated modification→gold sol process at the flow rate of 0. 8 m L / min for 4 h →treatment with plating liquid containing hydroxylamine hydrochloride for 4 h at the flow rate of 0. 8 m L / min. The gilded capillary was used for gas Raman tests and the relative peak strength of N2 in the air was increased from 148 counts( without gold plating) to 480 counts. Conclusion By the use of gold-deposited quartz capillary,corresponding signals of gas could be effectively enhanced under laser Raman detection,which lays a foundation for the further in-situ Raman analysis of gas." @default.
- W2349918287 created "2016-06-24" @default.
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- W2349918287 date "2015-01-01" @default.
- W2349918287 modified "2023-09-25" @default.
- W2349918287 title "Study of Gold Deposition on the Inner Wall of Quartz Capillary" @default.
- W2349918287 hasPublicationYear "2015" @default.
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