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2篇 您的检索式:作者名="GuoqiangLI"
    题名 作者 年代 出处 被引量
1XPS Analysis of the Cerium Conversion Coating on the Anodized A16061/SiC_p显示文摘A method of concentration analysis based on X-ray photoelectron spectroscopy (XPS) results was introduced.The concentration of Ce-rich conversion coating on the anodized Al based metal matrix composites Al6061/SiCp was then studied according to this method.The results revealed that the Ce conversion coating on the anodized Al6061/SiCp consisted of Al oxide,Ce oxide and Ce hydroxide.The state of Ce element exhibited the mixture of Ce^3+ and Ce^4+.Some of Cell was oxidized to be CelV in the outer layer coating.XingwenYU ChuanweiYAN ChunanCAO GuoqiangLI 2003Journal of Materials Science & Technology2003,19,2:1
2Two New Constituents from the Soft Coral Nephthea hainansis显示文摘Two new compounds, namely 7α, 10α-dimethyl-3β-isopropene-1, 2-ene-octahydro- naphthalene (1) and ethyl 5Z,8Z,11Z,14Z-nonadecatetraenoate (2) were isolated from the soft coral Nephthea hainansis. Compound 1 was a pseutosesquiterpene and 2 was a polyunsaturated fatty acid ethylate. Their structures were established on the basis of spectroscopic methods.GuoQiangLI XiangLI ZhiWeiDENG HuaShiGUAN WenHanLIN 2005Chinese Chemical Letters2005,16,4:0
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