• 溶剂汽油烷、石油一定比例复配成混合型溶剂,茴香原料,该溶剂合成了3磺酸对茴香产品中不含致癌物。

    The mixed solvent consists of solvent naphtha, decalin, and petroleum ether in a certain proportion, which was used to synthesize 3-sulfo p-anisidine by using p-anisidine as raw material.

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  • 设计合成一系列具有不同取代甲酰(苯)衍生物,测定它们非极性溶剂己烷中的荧光发射光谱

    A series of prar-and meta-substituted benzanilides were synthesized and their fluorescence spectra in nonpolar solvent cyclohexane were investigated.

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  • 研究了市售荧光试剂N-1-萘基NPED作为荧光探针测定方法

    A simple and sensitive fluorimetric method has been developed for the determination of trace palladium with N-(1-naphthyl)ethylene diamine(NPED) as a fluorescence reagent.

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  • 研究表明:长岭分公司催化柴油物质主要是烷吲哚、氨乙醇咔唑、-等深色化合物物质结构复杂类物质;

    The result indicated that the coloured compositions of diesel produced from FCC unit were alkyl indole, ethanamine-carbazole, phenyl- naphthylamine and complicated hydroxybenzene.

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  • 研究表明:长岭分公司催化柴油物质主要是烷吲哚、氨乙醇咔唑、-等深色化合物物质结构复杂类物质;

    The result indicated that the coloured compositions of diesel produced from FCC unit were alkyl indole, ethanamine-carbazole, phenyl- naphthylamine and complicated hydroxybenzene.

    youdao

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