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- OBJECTIVE To compare the extraction effect of Corydalis yanhusuo by SFE(CO2) and alcohol refluxing method. 目的比较CO2超临界流体萃取法(CO2-SFE)和醇回流法提取元胡有效成分的优劣。
- By the same extraction method, the extraction effect with SDS was better than that with CTAB. 同样的提取法,SDS的提取效果比CTAB好。
- Objective:To compare the extract effect of different solvent for two herber medicines. 目的:对四味止咳剂中两味中药的提取工艺进行筛选。
- Using the leaves of walnut Yangbi variety(Juglans sigillata) of different growing stage as the experimental materials, the genomic DNA extraction effect of two methods namely high salt and low pH and modified CTAB was compared. 以漾濞核桃不同生长期的叶片为材料,采用高盐低pH法和改良CTAB法作提取其基因组DNA的效果比较实验。
- The extraction effect of fat-soluble component extracted by aether was better than that extracted by n-butanol, ethyl acetate and n-hexane. 用乙醚萃取脂溶性物质的萃取效果分别优于正丁醇、乙酸乙酯和正乙烷。
- This paper mainly contrasted the extraction effect of Turmeric by different methods,including ultrasonic extraction、Soxhlet extraction and supercritical extraction (SCFE) with carbon dioxide. 并通过正交实验和二次旋转回归响应曲面确定了几种提取方法的最佳提取条件;
- In order to extract effectively the feature of SEMG signal, an improved method of feature extraction based on correlation analysis is proposed. 为了有效提取表面肌电信号(SEMG)的特征,该文提出了一种基于相关性分析的改进的特征提取方法。
- How to extract effective discriminative information from overlapping(outlier)samples is still open. 如何从重叠(离群)样本中抽取有效的分类特征没有得到有效的解决。
- How to extract effective discriminant features is the key problem for radar automatic target recognition based on high resolution range profile (HRRP). 摘要抽取有效鉴别特征是雷达一维高分辨距离像识别的关键。
- The feasibility was discussed that adopting SCF-CO_2 to extract effective constituent(piceid,resveratrol and emodin)from Chinese herb Polygonum cuspidatum. 探讨了用超临界CO_2萃取中药虎杖中有效成分(白藜芦醇苷、白藜芦醇和大黄素)的可行性。
- The exhansted alkali lye of cyclohexane oxidation was extracted step with cyclhexanol (or cyclohexanone) cyclohexane; the extracting effect is better and the recovery rate of extrantant is higher. 对环己烷氧化废碱液采用环己酮(或环己醇)环己烷分步萃取,萃取效果好,萃取剂回收率高。
- To study technics flow of extracting effective ingredients of Allium Mongolicum Regel by solvent extraction methods by orthogonal experiments design. 用正交试验设计研究了溶剂萃取法提取沙葱有效成分的工艺流程。
- The extraction effects of polysaccharides from the hulls of Physalis alpepengi var. francheti were compared by hot water extraction,supersonic wave extraction and enzyme extraction. 采用热水浸提法、超声提取法和酶提法进行酸浆果萼多糖的提取。
- Extracting effective constituents by SCF-CO_2 was studied under varying extraction conditions and different pretreatments. 采用了不同的虎杖预处理方式,并在不同的萃取条件下,用超临界CO_2对虎杖中的有效成分进行萃取研究。
- Therefore, the incipient fault feature can not be extracted effectively through frequency spectrum analysis. 因此,直接采用频谱分析无法实现早期故障的特征提取。
- Objective: To study the best condition of extracting effective component in Daphne odora Thurrb fresh flower by CO 2 supercritical fluid extraction(SFE). 目的 :研究超临界CO2 流体提取 (SFE)金边瑞香鲜花中有效成分的最佳条件。
- This method is simple, highly selective and efficient in extracting effective component of Daphne odora thurrb fresh flowers. 本法是一种简便、高选择性和高效率的提取金边瑞香鲜花有效成份方法
- Such an extract in a solution of alcohol. 酒精提取物酒精溶液中的提取物
- The extracted effective ingredients from halobios applied in many industries including pharmaceutical, food, daily cosmetics,beer,soft drinks industry. 从海洋生物中研究开发的有效成分,均广泛应用于化工、医药、保健、美容化妆品等多个行业。
- He tried to extract his pole from the mud. 他试图用力将杆子从泥中拔出来。