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- The fir essential oil was extracted from fir root by steam distillation method, from which cedrol was extracted, and then, cedrol methyl ether was synthesized based on cedrol. 以杉木根为原料通过水蒸气蒸馏法提取杉木精油，从杉木根精油中精制提取柏木脑，再以柏木脑为原料合成甲基柏木醚。
- Title： Comparison of Supercritical Fluid Extraction and Steam Distillation Methods for the Extraction of Essential Oils from Schizonepeta tenuifolia Briq. 关键词：超临界流体萃取;水蒸气蒸馏;气相色谱-质谱;荆芥穗;中草药
- Steam distillation method 水蒸气蒸馏法
- METHOD: The essential oil was extracted from Alpinia katsumadai Hayata by steam distillation. 方法:采用水蒸气蒸馏法从草豆蔻中提取挥发油。
- The experiment method of extracting nicotine from tobacco leaf is described in this paper with the steam distillation device which we have designed. 本文描述的是通过自己设计的水蒸气蒸馏装置,从烟叶中提取烟碱的实验方法。
- The volatile compounds of Patrinia villosa Juss were isolated with steam distillation, and identified by capillary GC/MS method. 用水蒸气蒸馏法提取白花败酱草挥发油,并用气相色谱-质谱联用仪对白花败酱草挥发油的化学成分进行了分离和鉴定。
- Method:The volatile oils were extracted from Jinshangzhitong plaster,Radix Angelicae Sinensis,Olibanum and Myrrha by steam distillation and identified by GC-MS. 方法:采用水蒸气蒸馏法分别从当归、乳香、没药、筋伤止痛贴中提取挥发油;
- Determination of water content.Azeotropic distillation method. 英文名称： Surface active agents and soaps.
- The essential oil of Cajanus cajan leaves were separated by steam distillation and its consti-tuents were analzed by GC/MS/MSD method using glass cross--linking capillary column. 用水蒸汽蒸馏法从木豆的叶和嫩枝中提出挥发油,并用交联毛细管柱气相色谱/质谱/计算机(GC/MS/MSD)联用技术测定木豆精油的化学成分。
- Z-ligustilide was extracted from Chuanxiong by the method of Recurrent Extraction Coupling with Absorption(RECA),Ethanol Extraction(EE),and Steam Distillation(SD) respectively. 采用乙醇提取法、水蒸气蒸馏法和循环提取与吸附耦合法提取川芎中藁本内酯,TLC和HPLC分析研究表明:乙醇提取法得挥发油率较高,油中含杂质最多;
- The results showed that steam distillation is superior to other methods.This method has the advantages of fast and thorough extraction,time sating,low ... 结果表明,水蒸汽蒸馏法与其它方法相比,具有提取快速完全、节省时间、成本低,所提取的有效成分含量较高等优点。
- The essential oil was obtained from the coriander(Coriandrum sativum L.) seeds grown in Heilongjiang by steam distillation extraction method in 0.50% yield. 以水蒸汽蒸馏法提取黑龙江产芫荽籽;以0.;50%25的产率获得精油。
- Methods The volatile oil was obtained from PPFA by steam distillation. 方法采用水蒸气蒸馏法从枳壳中提取挥发油。
- An effective method was developed for determination of formaldehyde in detergent by using steam distillation extracting combined with acetylacetone-colorimetric method. 摘要： 文章先用水蒸气蒸馏的方式制备样品，后用乙酰丙酮的比色法进行检测洗涤剂中的甲醛含量。
- Objective:To study the extraction technology of paeonol from Cortex Moutan,and improve the extraction method of steam distillation with ultrasonic assistance. 目的:对牡丹皮中丹皮酚的提取工艺进行研究,考察超声辅助水蒸气蒸馏提取的效果,改进提取工艺。
- First present a method to determine the organochlorine pesticides and pyrethroids in Chinese teas using microwave-assisted steam distillation (MASD) combined with GC/ECD. 提出了运用微波辅助水蒸气蒸馏进行萃取、GC/ECD进行检测，来分析茶叶中的有机氯农药和除虫菊酯的方法。
- They use a distilling method, right? 用的是蒸馏的方法，对不对？
- Three main extracting methods are steam distillation, solvent extraction and super critical CO2 extraction. 其提取方法主要有3种:水蒸气蒸馏法、机溶剂浸提法和超临界co2萃取法。
- METHODS The essential oil was extracted by steam distillation and analyzed by GC-MS technique. 方法用水蒸气蒸馏法提取白鲜皮挥发油并用气相色谱－质谱技术分析。
- Because of a azeotrope is formed between phenol and water,the phenol-water mixture can not be separated completely through common distillation method. 由于苯酚和水能形成共沸物,因此不能用普通精馏方法将它们分离。
