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- Results The average recovery of Dracaena major components reached 80% after precipitated by acetonitrile first and then extracted by ethyl acetate. 结果通过乙腈沉淀蛋白,采用乙酸乙酯进行提取,可使含药血清中龙血竭特征成分的提取率达到80%25以上。
- Results The average recovery of Dracaena s major components reached 80% after precipitated by acetonitrile first and then extracted by ethyl acetate. 结果通过乙腈沉淀蛋白,采用乙酸乙酯进行提取,可使含药血清中龙血竭特征成分的提取率达到80%25以上。
- precipitate by acetonitrile 乙腈沉淀法
- How many wars have been precipitated by firebrands! 多少次战争是由于煽动者促成!
- The crisis precipitated by Russia's revolution. 这场危机由俄罗斯革命促成。
- How any wars have been precipitated by firebrands! 多少次战争是由于煽动者促成!
- The residue of famoxadone in citrus was studied by acetonitrile extraction,gel column purification,and HPLC-UV detection. 采用乙腈提取、硅胶柱净化、HPLC的检测方法,研究了恶唑菌酮在柑橘中的残留动态。
- Precipitation by oxalate is the primary method to produce rare earth oxides. 稀土草酸盐沉淀法是制备稀土氧化物的主要方法。
- We think it is often possible to obtain a more pure precipitate by redissolving the precipitate, having washed it as free as possible from soluble impurities, and reprecipitating. 改译:在这种信托安排中,信托财产授予人保留了他可在认为适当的时候终止该项信托安排、或可指定另一当事人,使之具有同样权力的权利。
- Total solvable peptide content in the fermented fishmeal was determined by using the biuret method,and polypeptide in the precipitate by using Kjeldahl method. 用双缩脲反应法可以测出发酵鱼粉中水溶性总肽的含量,用凯氏定氮法可以测出被沉淀的多肽的含量,从而可以计算出发酵鱼粉中寡肽的含量。
- He persuaded her to sign the document by guile. 他用欺骗手段说服她在文件上签字。
- British colonies were ruled by governors. 英国的殖民地由总督统治。
- The army was demoralized by defeat. 军队因战败而士气消沉。
- Two main constituents were purified from the precipitate by RP?HPLC. Compared with the UV?, LC?ESI?MS, HPLC and FTIR spectra of standard samples of arctiin and arctigenin, the two main purified constituents were identified as arctiin and arctigenin. ? 经紫外光谱(UV)、红外光谱(FTIR)及电喷雾质谱(ESI MS)检测,并与牛蒡子甙和牛蒡子甙元对照品的UV,LC ESI MS,HPLC及FTIR图谱比较,鉴定两个主要成分为牛蒡子甙和牛蒡子甙元。
- The bride was given away by her father. 由父亲把新娘交与新郎。
- Roughness of the skin can be caused by bad diet. 饮食不好可能引起皮肤粗糙。
- The king was shorn of his power by his nobles. 国王被手下的贵族们剥夺了权力。
- His disease was complicated by pneumonia. 他的病因肺炎并发症而变得更严重。
- The question was decided by referendum. 这问题是由全民投票决定的。
- They acted with precipitate haste. 他们鲁莽仓促地采取了行动。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries