萃取

Through the steps such as acidify, filteration, extraction , distillation and vacuum distillation, the product is seperated from compounds.

通过酸化、过滤、萃取、常压蒸馏和减压蒸馏等后处理手段，将产物分离出来。

Described the design of supercritical fluid extraction principles; combination of star anise essential oil of the nature of the proposed extraction conditions for extracting pressure 15MPa, extraction temperature 40 ℃, CO2 flow rate 830 ~ 850L / h, extraction time of 2h, the extraction conditions selected temperature swing separation, further development of the star anise crushed, CO2 super-critical phase transition, extraction, separation and packaging processes; in determining the production process on the basis of material balance, heat balance, extractor size calculation, piping calculation and packaging process is calculated; for the pollution occurred during the production, analysis of pollution sources, pollution control and waste treatment proposed measures; accounting of production costs and value.

本设计阐述了超临界流体萃取技术的原理；结合八角精油的性质，提出萃取条件为萃取压力15MPa，萃取温度40℃，CO2流量830～850L/h，萃取时间2h，根据萃取条件选用变温变压的分离方式，进一步制定了八角粉碎、CO2超临界相变、萃取、分离和包装等工序；在确定的生产工艺流程的基础上进行物料衡算、热量衡算、萃取釜尺寸计算、管路计算和包装工序计算；针对生产过程中出现的污染，分析污染的来源，提出控制污染和废料处理的措施；核算生产的成本和价值。

In this work, GC-MS, ICP-OES, UV-Visible Spectrophotometry were employed to determine the trace concentrations of the above six hazardous substances, and a standard method system for screening primarily, extraction, qualitative and quantitative analyses of the six substances was established and their factors were analyzed. By evaluating the relative standard deviation, recovery, repeatability, limit of detection, linear relation etc., the optimum parameters were given and thus the precision of analysis was equal to or higher than the IEC 62321 standard, meeting the requirement of RoHS.

针对中国电子电气业在遵守RoHS符合性实践中存在的诸多问题，本文采用GC-MS，ICP-OES，UV-Visible分光光度法等，对我国南方和香港地区各类电子电气产品中六种有害物质进行痕量分析，建立了一套标准的六种有害物质初步筛选、萃取、定性、定量分析方法，并对此方法体系的影响因素进行分析，对其相对标准偏差、回复率、再现率、检出限、线性关系等进行评估，得出了优化测试参数，在此条件下其检测的精密度达到或高于国际IEC 62321标准，满足RoHS测试要求。

In this thesis, the systematic study on the optimization of 6APA preparation process (including hydrolysis of benzylpenicillin, concentration, extraction and reactive crystallization) were performed.

对于6APA制备过程（包括裂解、浓缩、萃取、反应结晶四步骤）优化进行了较详细的研究。

Purified water, VP/VA copolymer, vegetable glycerin, hydrolyzed wheat protein, biotin, panthenol, niacin, extracts of camellia sinensis and serenoa serrulata, certified organic extracts of salvia officinalis, aloe barbadensis leaf, lavandula angustifolia, melissa officinalis, calendula officinalis and chamomilla recutita, sodium hydroxide, carbomer, phenoxyethanol.

纯水、VP / VA共聚物、蔬菜甘油、水解小麦蛋白、素、泛醇、烟酸、提取物的茶树和serenoa serrulata，经认证的有机液(鼠尾草、琴柱草酝酿索芦荟叶片，)小甜甜沙枣淡紫色，酝酿和chamomilla金盏花酝酿recutita(matricaria、氢氧化钠、萃取。所有发质都适合。

The study on the extracting small experiment of Choleic acid, Glycocholic acid and Taurocholic acid.The extracting small experiments of Choleic acid, Glycocholic acid and taurocholic acid were studied by adopting deproteinizatio, depigmentation, extraction and column chromatographic fractionation.

提取胆酸、甘氨胆酸、牛磺胆酸的小试工艺研究采用脱蛋白、除色素、萃取、柱层析分离等方法开展了从牛羊混合胆汁中分离、提取和纯化胆酸、甘氨胆酸及牛磺胆酸三种有效成分的小试提取工艺研究。

This paper gives the principle, range,characteristic and recent progress of ultrasonic applications in the cleaning, extraction, crystallization/decrystallization, emulsi-fication/demulsification, sonochemistry and oil extraction and so on.

本文主要对超声波在清洗、萃取、结晶粉碎、乳化破乳、超声化学、采油等化工领域中的应用原理、范围、特点和现状进行评述。

Hydrophilic organic phase/salt containing aqueous system; extraction; liquid-liquid equilibrium; turbidity-density analysis method; L-lysine; dipotassium hydrogen phosphate; ethanol; isopropanol

工程科技II，工业通用技术及设备，工程基础科学亲水有机相/含盐水体系；萃取；液液相平衡；浊度-密度法； L-赖氨酸；磷酸氢二钾；乙醇；异丙醇

Five Taiwanese herbal medicines, including Solanum lyratum, Solanum verbascifolium, Duchesnea indica, Selaginella doederleinii and Peucedanum longshengense, were collected in Taiwan.

本研究选择台湾产之白英、山烟草、蛇莓、石上柏及南岭前胡等五种台湾草药进行 H2O 及 EtOH 萃取，可得到台湾草药之水萃取物及乙醇萃取物。

The stable carbon isotope values of α-,β-,and γ-hexachlorocyclohexane isomers were determined by GC-C-IRMS,EA-IRMS,and Dual-inlet IRMS in this study.

应用GC-C-IRMS技术分析了水样品中α-和γ-六六六的碳同位素组成，结果表明六六六在溶解、稀释、萃取、挥发等过程碳同位素组成没有分馏现象。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。