• 结果样品中易挥发主要成分为甲苯丁酮汽油醋酸酯、急性毒性分级低毒

    Results Those samples ingredients easy to volatilize were mainly toluene, butanone, gasoline, ethyl acetate, acetone, etc. All of them were rated as low toxic for their acute toxicity.

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  • 草烟的合成可以用3-甲基-2- 丁酮、 粘氯酸草酸等原料,反应制得。

    Imazethapyr is synthesized from 3 - methyl - 2 - butanone. Butyraldehyde, nucochloric acid or diethyl oxalate by eight steps reaction.

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  • 黄芩:采用硅胶G板,以醋酸酯-丁酮-甲酸-水(5:3:1:1)为展开剂,显色剂为1%三氯化铁醇溶液。

    Radix Scutellariae was examined by Silca gel-G, the mobile phase was ethyl acetate-butanone-formic acid-water (5:3:1:1).

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  • 黄芩:采用硅胶G板,以醋酸酯-丁酮-甲酸-水(5:3:1:1)为展开剂,显色剂为1%三氯化铁醇溶液。

    Radix Scutellariae was examined by Silca gel-G, the mobile phase was ethyl acetate-butanone-formic acid-water (5:3:1:1).

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