Based on the study of vanillin characteristics, new purification methods are presented.
在分析香兰素性质的基础上提出了新的提纯方法。
The extraction and purification methods and the chromatographic conditions were studied.
研究了五种磺胺类药物残留的提取、净化和色谱条件。
The preparation and purification methods of pyridine hydrochloride were discoursed in the paper.
本文叙述了盐酸吡啶的制备及精制方法。
The favourable reaction conditions and the purification methods of these compounds were found out.
测定了它们的红外光谱和核磁共振谱，探索了适宜的反应条件及产物的提纯方法。
The separation and purification methods for astragalus polysaccharides are introduced and analyzed in this paper.
介绍和分析黄芪多糖的分离和纯化方法。
Objective To improve output, purification and function of islet cells by optimizing isolation and purification methods.
目的优化胰岛细胞分离纯化的方法，提高胰岛产量、纯度和功能。
This reveals the inherent fallacy in judging individual purification methods based solely on their average purification factor.
这表明个人净化判断的基础上平均只纯化方法因素的内在谬论。
ConclusionThis text provides the extraction and purification methods to get the outcome and the purity of the flavanone is high.
结论该方法采用全物理过程，无污染，是提取龙眼壳中黄酮类物质的有效途径。
FOS has a lot of benefits. For a few specific people, 55% FOS must be purified. This article summaries purification methods of FOS.
低聚果糖具有许多有益的保健功效，为了某些特定人群的使用，需将含量55 %的低聚果糖纯化。综述了低聚果糖的纯化方法。
Among all purification methods, affinity chromatography shows the excellent characteristics such as high selectivity, high yield, etc.
以亲和技术为基础的分离纯化方法与其它分离制备方法相比具有高选择性、高活力回收等优点。
Various purification methods of glucomannan from konjak powder (KGM) were discussed. A simple purification method was brought forward.
分析了近年来各种魔芋葡甘露聚糖(KGM)的分离纯化方法，讨论了它们的优缺点。
Methods The effects of DNA templates, primers, cycle sequencing reactions as well as purification methods were comparatively analyzed.
方法对测序中模板、引物、测序反应条件及其产物的纯化等因素进行比较研究。
The purification methods of phosphine include adsorption method, low temperature distillation method and membrane separation method etc.
总结了磷化氢的精制方法，主要有吸附法、低温精馏法和膜分离法等。
This paper discusses the compositions of the exhaustions and the hazards concerned, and presents the purification methods of these gases.
文章介绍了柴油铲运机所排废气的成分及其危害，阐述了此类废气的净化方法。
The optional high cell-density fermentation conditions, purification methods and biological activity of the recombinant enterokinase in E.
对重组肠激酶在大肠杆菌中的高密度发酵表达条件、纯化方法及其生物活性测定进行了研究。
Methods According to the state of illness, 51 patients were treated by various blood purification methods, from twice a week to once a day.
方法51例不同病因所致的ARF患者行每周2次至每天1次的血液净化治疗，根据病情不同选用不同的血液净化方式。
The effects of DNA templates, primers, cycle sequencing reaction conditions, purification methods, operation of instrument were comparatively analyzed.
对测序中的模板、引物、测序反应条件及测序反应纯化方法和仪器操作等进行研究。
Nanotechnology can help alleviate these problems by offering new techniques and equipment for conducting water research as well as new purification methods.
纳米技术可以提供进行水研究的新技术和新设备以及新的净水方法，从而帮助解决这个问题。
The second chapter introduces the plastic packaging Ham phthalate plasticizers in the pre-treatment methods, including extraction and purification methods.
第二章详细介绍塑料包装西式火腿中邻苯二甲酸酯类增塑剂的前处理方法，包括提取及净化方法。
Furthermore the mechanisms involved in these purification methods were discussed. And the work of our group in purifying carbon nanotubes was briefly introduced.
同时对各类提纯方法的机理进行了讨论，简述了本研究小组在提纯方面的工作。
The pigment's structures, physic-chemical properties, extraction and purification methods, stability and the ways of improving its stability were reviewed in this paper.
对红甘蓝色素的主要结构、理化性质、提取工艺及其稳定性等方面的研究现状进行综述，并提出了提高其稳定性的途径。
Objective To establish a super-sensitive diagnosis method for influenza a (H1N1) by enrichment of virus RNA using several settling agents and nucleic acid purification methods.
目的利用几种助沉剂和核酸纯化方法富集病毒rna，建立甲型H1N 1流感超敏感诊断方法。
We use traditional enrichment, screening, purification methods to select 10 degrading bacteria of 8 kinds of phenolic compounds from a soil sample polluted by phenol wastewater.
本研究利用传统的富集、筛选、纯化的方法，从受含酚废水污染的土壤中筛选出了8种酚类化合物的10株降解菌。
These were discussed where cyanide bearing effluent originates from, what its properties are, how it is purified that and the correct and suitable purification methods were introduced.
本文论述了氰化废水的来源、性质及净化方法。介绍了如何根据氰化废水的性质正确选择净化方法。
The infectivity of the oocysts obtained from the same origin but different animals and different purification methods in a bovine fallopian tube epithelial cell culture system was studied.
探讨来自不同动物、不同纯化方法的卵囊在牛输卵管上皮细胞培养系统的感染情况。
In this paper, studies on pharmacognosy, chemical constituents, pharmacology, purification methods and USES of Chinese medicine Luohanguo, a special local product of Guangxi, are reviewed.
综述了广西特产药用植物罗汉果的生药学、化学成分、药理学、提取分离方法和应用研究，为深入研究开发利用罗汉果资源提供参考。
Productivity, production technique and purification methods of nitrogen trifluoride are introduced at home and abroad, while the domestic and foreign market of it is analyzed and forecasted.
介绍了国内外三氟化氮的产能、制备技术及纯化方法，同时对国内外三氟化氮市场进行了分析和预测。
The synthesis and purification methods of dihydroxydiphenylsulfone as a developer were reviewed with 22 references, the advantages and disadvantages of different technologies were discussed.
综述了显色剂二羟基二苯砜的合成及精制方法、不同合成工艺的优缺点。
The synthesis and purification methods of dihydroxydiphenylsulfone as a developer were reviewed with 22 references, the advantages and disadvantages of different technologies were discussed.
综述了显色剂二羟基二苯砜的合成及精制方法、不同合成工艺的优缺点。
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