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。
Conclusion: The improved methods of manual purification, cool digestion and dermal scratching may increase the human keratinocyte livability and growth speed.
结论：采用人工纯化法、冷消化法和真皮刮除法等改良方法可提高体外培养的人表皮角质细胞存活率及生长速度。
In this paper, the methods of pectin extraction and purification from plant tissues, including chemical and biological methods, are introduced.
本文综述了从植物中提取果胶的各种方法，包括化学提取法和生物提取法。
The methods of isolation, purification and detection of taxol are reviewed.
综述了紫杉醇的分离纯化及其检测方法。
The methods of purification for naphthenic acid consist of physical method and chemical method.
环烷酸的提纯方法主要有物理方法和化学方法。
In this paper, the magnetite purification and two methods for obtaining ultrafine magnetite powder were introduced.
介绍了磁铁矿的选矿提纯方法和获得磁铁矿超细粉的两种途径。
Methods Field experimental observation on purification efficacy of electronic air cleaner on particle and natural bacteria in the air was made.
方法采用现场实验观察电子空气净化机对可吸入颗粒、空气中自然菌的净化效果。
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 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。
The separation, purification and identification methods of nickel and vanadyl porphyrins are also recounted.
对石油镍、钒的脱除、卟啉镍和卟啉钒的分离提纯以及鉴定方法进行了详细阐述。
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。
The methods of extraction, purification and derivation of food samples, the selection of phase and determination of the biogenic amines in different foods are discussed.
对样品生物胺的提取、净化、衍生方法、流动相的选择以及不同食品中的生物胺种类及含量做了深入的探讨。
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。
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 methods of synthesis and purification of the reagents were introduced.
介绍了这类试剂的合成及纯化方法；
The sources, structures, properties and physiological activities of chondroitin sulfate were briefly described. The methods of its extraction, purification and separation were reviewed.
介绍了硫酸软骨素的来源、结构、性质及其生理功能，对硫酸软骨素的提取、纯化及分离技术进行了综述。
In the light of asphalt gas produced from different technical processes, he proposes several purification and control methods available in order to decrease or eliminate the pollution of asphalt gas.
针对不同的工艺流程产生的沥青烟，提出可采用几种不同的净化治理方法，有效地减轻或消除沥青烟的污染。
The purification and analysis methods were studied for lipase-catalyzed synthesis of lauroyl mannoses.
本文对脂肪酶酶催化合成月桂酸甘露糖酯的分离纯化作了研究。
This paper introduces immunosuppressive mechanism of rapamycin and fermentation, purification, detection methods, applications, and provide reference for the future research.
对雷帕霉素的免疫抑制机理及发酵、纯化、检测方法、应用等方面进行了简述，以期为雷帕霉素的研究提供参考。
Brine refining process is summarized. Related to the brine purification process in clarifying tank, methods to improve the output and purification effect are introduced.
综述了盐水精制过程，浅析影响因素，结合澄清桶内盐水净化过程，探讨提高出力和净化效果的一些措施。
In this review, the methods of purification were reviewed and the latest research development of purification and development prospect of soy isoflavones were elaborated also.
该文阐述大豆异黄酮纯化技术进展，讨论目前研究中存在问题，并对其发展前景进行展望。
The researches on methods of the extraction, separation, purification and purity identification of natural glycoproteins were summarized.
概述天然糖蛋白的提取、分离、纯化及纯度鉴定方法研究。
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。
This paper summarizes the development of studies on the polysaccharides from edible fungi, including composition, structure, methods of extraction and purification, and their current state.
本文对食用菌多糖的组成、结构、提取和分离纯化研究以及当前的研究状况进行了综述。
To explore the methods of isolation and purification of human fetal liver stem cells in vitro and analyze the bionomics.
研究人胎肝干细胞体外分离纯化方法，并对其进行初步鉴定及生物学特性分析。
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 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。
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