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双语例句

  • 方法利用方法进行分离纯化,根据化合物的化学性质光谱数据鉴定结构

    Methods to isolate the constituents by reverse phase chromatography, and characterize their structures by the analysis of chemical property and spectral data.

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  • 方法利用反相硅胶大孔树脂色谱分离通过波谱技术进行结构鉴定。

    Methods The compounds were isolated by silica gel, ODS, and macroporous resin column chromatography and their structures were determined by means of spectral analysis.

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  • 方法采用硅胶硅胶RP- 18色谱分离,运用有机波谱分析确定化合物结构

    Methods Three compounds were isolated by a combination of RP-18and silica gel column chromatographies, and their structures were identified by spectral methods.

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