• Objective To study the influences of dichloromethane extraction from crude and processed Cornus Officinalis on bone marrow cells of aging mice induced by D-galactose.

    目的研究山茱萸生、制品二甲烷萃取部位对D-半乳糖致衰小鼠骨髓细胞影响

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  • After reaction, the purified product was obtained through extraction with dichloromethane, drying with anhydrous sodium sulfate and desolventizing.

    反应二氯甲烷萃取水硫酸钠干燥,除去溶剂后得到纯净产物

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  • Dichloromethane was used as extracting agent for the extraction, and then vacuum rotatory evaporator was used for the concentration.

    以二氯甲烷萃取茅台迎宾酒中的微量成分进行萃取然后真空旋转蒸发器浓缩

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  • The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.

    样本丙酮提取,加二氯甲烷萃取,通过中性氧化铝活性炭混合层析净化,然后上气相色谱NPD检测。

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  • Methods Chlorpyrifos was determined by GC-FPD after extraction by dichloromethane. Qualitative analysis was done by retention time and quantitative analysis by external standard curve.

    方法水中的毒死二氯甲烷萃取火焰光度检测气相色谱法测定,保留时间定性法定量。

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  • Methods Chlorpyrifos was determined by GC-FPD after extraction by dichloromethane. Qualitative analysis was done by retention time and quantitative analysis by external standard curve.

    方法水中的毒死二氯甲烷萃取火焰光度检测气相色谱法测定,保留时间定性法定量。

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