查询词典 extraction

The extraction and purification of Acetobacter Z127 ADH. Four methods were employed to isolate ADH from Acetobacter Z127 just to find bacteriolytic solution could break cell efficiently and maintain ADH activity simultaneously and thus it was suitable for the extraction of Acetobacter Z127 ADH.

通过实验对模型的检验，表明实验建立的细胞生长动力学模型和乙醇消耗动力学模型可以反映Acetobacter Z127的生长、消耗反应规律。3Acetobacter Z127中ADH的提取纯化。

Batatas by water-dissolving and water-dipping extraction technology and alcohol-water solution extraction technology were studied and compared.

方法利用水溶水浸提取工艺和酒精水溶液提取工艺对紫红薯色素的提取进行研究与比较。

The effects of extraction temperature, microwave power, extraction time on betulin yield by MAE were discussed and the betulin content was determined by HPLC.

考察了提取温度、微波功率、提取时间对桦木醇收率的影响，并用高效液相色谱法测定了萃取物中桦木醇的含量。

The current developments were summarized and the research contents of this thesis were described.In the second chapter, a simple procedure is described for the simultaneous extraction and determination of betulin and betulinic acid in white birch bark. To compare extraction efficiency, effect of white birch bark growing in different locations and different extract solvents on the content of betulin and betulinic acid were evaluated.

第二章建立了一种简单、准确度、灵敏度高和重现性好的RP-HPLC同时测定白桦树皮中白桦酯醇和白桦酯酸含量的方法，并用这种方法研究了提取溶剂以及产地对树皮中白桦酯醇和白桦酯酸的含量影响，确定了最佳的提取工艺。

The results showed a betulin yield of 25.43%, a purity of 59.19% was achieved from 1g powder of B. platyphylla bark under the extraction temperature of 72℃, microwave power 67W, and extraction time 100s.

试验结果表明，1g白桦树皮粉末，在提取温度72℃、微波功率67W，提取时间100s的条件下，微波辅助提取的桦木醇收率达到25.43%，纯度达到59.19%。

Especially in the biochemic separate industry,the aqueous two-phase extraction was obviously superior to the conventional extraction and separated methods.

双水相萃取技术是一种高效温和的新分离技术，在生物制药、分析检测、稀有金属分析等方面均有应用，特别是在生化分离工业中，比传统的萃取方法有着更加明显的技术和条件优势。

The first part of this research was to investigate anti-oxidant abilities of Boehmeria nivea leaf and root. Different extraction methods, drying conditions as well as far infrared were applied to measure their effects on anti-oxidant abilities of Boehmeria nivea leaf and root. Results showed that 95% ethanol extracts of fresh leaves and roots demonstrate the highest anti-oxidant components(total contents of phenol compounds and flavonoids)and scavenging abilities free radical scavengingABTS(2,2'-azinobis［3-ethylbenzothiazoline-6- sulfonic acid］and DPPH (α,α-diphenyl-β-picrylhydrazyl) free radical , followed by hot water and cold water extraction.

本研究第一部份拟针对苎麻叶与根探讨其抗氧化能力，并以不同萃取方法、不同乾燥处理方式及经远红外线照射对其抗氧化能力之影响，研究结果显示，在不同萃取方法中，新鲜苎麻叶与根皆以95%乙醇萃取物的抗氧化成分及抗氧化能力清除ABTS(2，2'-azinobis［3-ethylben-zothiazo-line-6

Accelerated solvent extraction and Soxhlet extraction were used to extract Capparis spinosa seed oil.

采用835-50型氨基酸自动分析仪测定了刺山柑果实、花蕾和叶子中氨基酸的含量。

Accelerated solvent extraction and Soxhlet extraction were used to extract capparis spinosa seed oil with he-xane and ethyl ether.

采用加速溶剂萃取及索氏提取法，用正己烷和乙醚为提取剂从野西瓜种子中提取油脂，经浓H2SO4催化，甲醇甲酯化处理后，以气相色谱-质谱联用技术鉴定出野西瓜种子中的脂肪酸主要组成为：油酸、亚油酸、硬脂酸等，其中不饱和脂肪酸总量占91.4%，主要成分油酸占73.3%。

1-phenyl-3-methyl-4-caprylpyrazolone-5 was synthesized from 1-phenyl-3-methyl-pyrazolone-5 and caprylyl chloride, and some extraction parameters were investigated such as the acidity, the concentration of Sr, the time of the extraction and the thinners.

通过1-苯基-3-甲基-吡唑啉酮-5与辛酰氯合成萃取剂1-苯基-3-甲基-4-辛酰基吡唑啉酮-5，并对其萃取Sr的影响因素，如酸度、Sr浓度、萃取时间和稀释剂等进行研究。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切