2) rutin content
芦丁含量
1.
Effects of processing methods on rutin content and functional characteristics of traditional buckwheat products;
加工方式对传统荞麦制品芦丁含量及功能特性的影响
2.
The high-performance liquid chromatographic (HPLC) and heat-induced oxidation of an aqueous emulsion of β-carotene and linoleic acid methods were used to estimate the changes of rutin content and antioxidant activity of 50% ethanolic extracts from buckwheat ( Fagopyrum Tataricum Gaert )flour before and after heat treatment.
运用高效液相色谱仪、β -胡萝卜素 -亚油酸乳化体系热自动氧化法、DPPH游离基清除法 ,对受热处理的产自重庆城口县苦荞麦粉的 5 0 %乙醇提取物的芦丁含量和抗氧化活性进行了研究。
3.
The rutin content of leaf with different growing stage at the Eucalyptus youmanii branch and the bark is determined by spectrophotometric method, also compared with eucalyptus Citrodora and local Eucalyptus robusta.
本文采用分光光度法测定了尤曼桉树枝上不同生长阶段叶片及其树皮中的芦丁含量;并与柠檬桉、本地的大叶桉进行了比较;初步探讨了干燥温度和干燥时间对芦丁含量测定的影响。
3) methane content
甲烷含量
1.
By the effective analysis of coal thickness,coa quality,hydrological condition,hidden depth of the coal bed surrounding rock and so on on coal bed methane content in Daxing Well Field expounds slorag of coal bed methane regular pattern and evaluales the necessity and possibity of prospecting and developing of coal bed gas in this area.
通过对铁法煤田大兴井田煤厚、煤质、水文地质条件、埋藏深度、煤层围岩物性特征等因素对煤层甲烷含量的影响分析,阐述该区煤层甲烷赋存规律,同时评价了该区煤层气勘探开发的必要性和可能性。
2.
It is analysed that the utilization of Ende powdered coal gas-making technology in methanol co-production process can result in a 20% high of CO 2 and a three to five times rise of methane content in gas in view of the characteristics of Ende powdered coal gasification and operational fluidized bed gasification parameters at hand.
根据恩德粉煤气化的特点 ,及已有的沸腾床气化数据 ,分析认为 :联醇工艺采用恩德粉煤制气 ,将使煤气中CO2 含量高达 2 0 % ,甲烷含量升高 3～ 5倍。
4) alkane content
烷烃含量
1.
A method for the determination of alkane content in fatty alcohol utilizing capillary gas chromatography is described.
采用毛细管气相色谱法测定脂肪醇中的烷烃含量，讨论了影响测定结果的因素。
补充资料：丁烷
| 丁烷 butane 一种气体烷烃 。分子式 C4H10。存在于石油和天然气中。有两种异构体，即直链的丁烷 CH3CH2CH2CH3和支链的异丁烷（CH3）2CHCH3 。它们都为无色气体 。丁烷熔点－138.4℃，沸点－ 0.5℃，相对密度 0.5788（20／4℃）；异丁烷熔点－159.4℃，沸点－11.633℃，密度0.549克／升（20℃）。它们在工业上可用分馏法分离。 丁烷在催化剂存在下去氢，生成丁烯(1-丁烯和2 -丁烯)或丁二烯，在硫酸或无水氢氟酸存在下异构化为异丁烷。异丁烷催化去氢，生成异丁烯(CH3)2C=CH2；异丁烷可作为烃化剂与烯烃反应，生成抗爆性能好的支链烷烃，例如与异丁烯反应生成异辛烷（见辛烷）。 炼油工业中用裂解法生产汽油时生成大量丁烷。丁烷与丙烷和少量乙烷一起液化后可作为燃料，即液化石油气，也用作溶剂和化工原料。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条