1)supercritical extraction超临界提取
英文短句/例句
1.Study on Supercritical CO_2 Extraction Process of Indigo Naturalis and Pharmacokinetics of Its Extracts;青黛超临界提取工艺及其超临界提取物的药动学研究
2.Study on Extraction and Correlative Characters of Flavonoids from Radix Sophorae Flavescentis苦参中黄酮类化合物的超临界提取及定性研究
3.Research on the Supercritical Extraction of Seed Oil from Rubber Tree and Its Composition Analysis橡胶树种子油的超临界提取及成分分析
4.Study on the Extraction of Bilirubin by Supercritical CO_2 Extraction and Ethyl Acetate超临界CO_2和乙酸乙酯提取胆红素
5.Extraction of Total Flavonoids in Sophora flavescens by Supercritical CO_2 Fluid超临界CO_2流体提取苦参中总黄酮
6.STUDY ON THE SEED OILS EXTRACTION OF TRICHOSANTHES KIRILOWII MAXIM WITH SUPERCRITICAL CARBON DIOXIDE EXTRACTION超临界CO_2提取栝楼籽油的工艺研究
7.Study on Extraction Process of Salvia Miltiorrhiza Bge.by SFE CO_2丹参的超临界CO_2提取工艺研究
8.Empirical Study on the Extraction of Volatile Rose Oil by Supercritical Fluid Extraction超临界流体萃取法提取玫瑰挥发油的实验研究
9.Organic solvent extraction and supercritical fluid extraction of colchicine from lily溶剂提取和超临界流体萃取百合中的秋水仙碱
10.The Oil Extraction from Grape (V.davidii Fo(?)x.) Seed with Supercritical CO_2 Extraction;超临界CO_2萃取技术提取刺葡萄籽油的研究
11.Study of Extraction of Solanesol in Tobacco with Supercritical Fluid Extraction;超临界萃取技术提取烟草中茄尼醇的工艺研究
12.STUDIES ON EXTRACTION OF BOTANICAL VALUABLE COMPOUNDS BY SUPERCRITICAL CARBON DIOXIDE;用超临界CO2萃取技术提取植物有效成分的研究
13.Extraction Process of Salvianolic Acid B with CO_2 Supercritical Fluid超临界二氧化碳萃取丹酚酸B的提取工艺研究
14.Study on the Supercritical Fluid Extraction of Tea Polyphenols for Tea and Its Application超临界萃取茶叶中茶多酚的提取与应用
15.Application of Supercritical CO_2 Extraction in Natural Products超临界CO_2萃取技术在天然产物提取中的应用
16.Rose Essential Oil Extracted by Supercritical CO_2 Reextraction利用CO_2超临界二次萃取方法提取玫瑰精油
17.Study on the Extraction of Valuable Compounds in Dilute Aqueous Solution with Supercritical Fluid;超临界流体提取稀溶液中有用成分的研究
18.STUDIES ON EXTRACTION OF CAPSANTHIN BY USING SUPERCRITICAL CARBON DIOXIDE;辣椒红色素超临界流体技术提取和应用研究
相关短句/例句
supercritical fluid extraction超临界流体提取
1.This paper reviews the principle and characteristics of supercritical fluid extraction technology,the properties and selection of supercritical fluid,and its application in food industry.超临界流体提取(SFE)技术开辟了分离工业的新领域,是一种新型的分离技术。
2.High temperature distillation (HTD) and supercritical fluid extraction(SFE) methods were used to extract 14 C chlorsulfuron bound residues from soil.研究利用高温蒸馏法和超临界流体提取法从土壤中提取１４Ｃ绿黄隆的结合残留。
3)supercritical CO_2 extraction超临界CO2提取
1.officinalis by supercritical CO_2 extraction mainly contained neolignans such as magnolol and honokiol.采用水蒸气蒸馏和超临界CO2提取与气-质联用技术对厚朴药材中的化学成分进行了研究。
4)CO_2 Supercritical extractionCO_2超临界提取
5)SFE-CO2 extract超临界CO2提取物
1.The main volatile components in SFE-CO2 extracts of radix Angelicae sinensis,rhizoma chuanxiong and their drug partnership were analyzed by GC-MS.采用气相色谱-质谱(GC-MS)和NIST谱库分析,鉴定了当归、川芎及其药对的超临界CO2提取物中的主要挥发性成分,并做了相关比较。
6)supercritical-CO_2 fluid extraition超临界流体提取法
延伸阅读
超临界萃取超临界萃取所用的萃取剂为超临界流体，超临界流体是介于气液之间的一种既非气态又非液态的物态，这种物质只能在其温度和压力超过临界点时才能存在。超临界流体的密度较大，与液体相仿，而它的粘度又较接近于气体。因此超临界流体是一种十分理想的萃取剂。超临界流体的溶剂强度取决于萃取的温度和压力。利用这种特性，只需改变萃取剂流体的压力和温度，就可以把样品中的不同组分按在流体中溶解度的大小，先后萃取出来，在低压下弱极性的物质先萃取，随着压力的增加，极性较大和大分子量的物质与基本性质，所以在程序升压下进行超临界萃取不同萃取组分，同时还可以起到分离的作用。温度的变化体现在影响萃取剂的密度与溶质的蒸汽压两个因素，在低温区（仍在临界温度以上），温度升高降低流体密度，而溶质蒸汽压增加不多，因此，萃取剂的溶解能力时的升温可以使溶质从流体萃取剂中析出，温度进一步升高到高温区时，虽然萃取剂的密度进一步降低，但溶质蒸汽压增加，挥发度提高，萃取率不但不会减少反而有增大的趋势。除压力与温度外，在超临界流体中加入少量其他溶剂也可改变它对溶质的溶解能力。其作用机理至今尚未完全清楚。通常加入量不超过10％，且以极性溶剂甲醇、异丙醇等居多。加入少量的极性溶剂，可以使超临界萃取技术的适用范围进一步扩大到极性较大化合物。
