目的:介绍一种快速选择和评价高速逆流色谱溶剂体系的方法。
Objective: to introduce a new way, which facilitates the systematic search and evaluation of the solvent systems suitable for high-speed countercurrent chromatography (HSCCC).
对于原料药和成药的色谱步骤的具体要求,包括吸附剂和展开溶剂,在具体各论中给出。
Specific requirements for chromatographic procedures for drug substances and dosage forms, including adsorbent and developing solvents, are given in the individual monographs.
摘要目的:建立一种气相色谱法同时测定注射用青霉素钠中有机溶剂丁醇、乙酸乙酯、乙酸丁酯残留量的方法。
To found a method to detect the residual solvents of penicillin sodium for injection: butanol acetic ether and butyl acetate.
研究了拜尔法生产氢氧化铝过程中,用溶剂浮选-气相色谱法测定结晶助剂有效成分硬脂酸钠的方法。
A solvent flotation-gas chromatography for the determination of sodium stearate in sodium aluminate solution in aluminium hydroxide production by the bayer process was studied.
目的建立测定非洛地平原料药中有机残留溶剂的顶空气相色谱法。
Objective to determine organic solvent residual volume in felodipine raw material by headspace gas chromatography.
相比目前使用的水或甲醇溶剂纯化收率30%,发现以丙酮、乙酸、水的溶剂体系,精制更昔洛韦收率可显著提高到83.3%,高效液相色谱(HPLC)分析,产品纯度达到99.0%以上。
Ganciclovir could be purified to more than 99.0%(HPLC) by a combination of acetone, acetic acid and water in 83.3% recovery as compared with 30% one when using water or methanol as solvent.
目的:建立以顶空气相色谱法测定夫西地酸中有机溶剂残留量的方法。
OBJECTIVE: to determine organic solvent residual volume in fusidic acid by headspace gas chromatography.
分别采用硅胶柱色谱法和溶剂抽提,分离优质塑料抛光膏中的油脂和磨料部分。
Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.
建立了快速溶剂萃取-气相色谱法同时测定含脂羊毛中47种有机磷杀虫剂残留量的方法。
This study developed a method for simultaneous determination of 47 organophosphorous pesticides in greasy wool by accelerated solvent extraction (ASE) coupled with GC-NPD.
升高色谱柱的温度,不仅可以加快分析速度,而且还可以改善峰形,减少有机溶剂的使用。
Under the high temperature, not only the analytical time can be shortened, but the peak symmetry can be improved and the use of organic solvent can be decreased as well.
目的研究极性有机溶剂辅助阴、阳离子交换色谱串接组合纯化蛋白质的可行性。
PurposeTo explore the possibility of combination of anion and cation exchange chromatography by using the polarity organic solvents in eluent.
前言:本讲介绍薄层色谱有关的展开方式,展开操作和展开溶剂;定位(或显色)。
The paper introduces: development mode; Developing solvents; procedure of development and Location or visualization procedure for thin layer chromatography.
并对色谱柱、载气流速、柱温溶剂、进样量等色谱条件的选择,以及试样与溶剂的体积比的选择进行了实验。
The selection of chromatographic column, flow rate of carrier gas, column temperature, solvent, sample size and the column ratio of sample and solvent were experimented.
它以纯有机溶剂作电色谱流动相,具有许多水溶液电色谱所不能比拟的优点。
There are many advantages which the ordinary CEC method doesnt have by using the pure organic solvent as mobile phase.
用气相色谱法测定溶剂中丙烯腈的含量。
To determine acrylonitrile content in solvent with gas chromatography.
目的建立工作场所空气中二氯甲烷的溶剂解吸气相色谱测定方法。
To establish a gas chromatography method for solvent desorption of dichloromethane in the air of workplace.
凝胶色谱法是一种有着广阔应用前景的硫氰酸钠溶剂净化技术。
Gel chromatography is an attractive technology to purify the sodium thiocyanate solvent of nitrilon industry.
以大豆胚芽出油率为指标,石油醚为脱脂溶剂,通过单因素和正交试验对大豆胚芽索氏提取工艺进行了研究,并用气相色谱对胚芽油的脂肪酸组成进行了分析。
Through single factor and orthogonal experiments, extraction of oil from soybean embryo and its composition were studied by using petroleum ether as degrease solvent and GC, respectively.
采用溶剂萃取法和柱色谱法相结合的工艺,从大豆油脚中制备肌醇磷脂,研究了不同洗脱剂对柱色谱分离脑磷脂和肌醇磷脂效果的影响。
The soybean phosphatidylethanolamine and phosphatidylinositol were prepared by combining methods of solvents extraction and silica gel column chromatography from soybean oil sediment.
同时提出在单糖进行硅醚化反应后适量加水的简易后处理方法,能显著减少色谱测定时溶剂峰的“拖尾”,并消除了反应后产生的沉淀。
An improved and simplified after-treatment procedure has been developed which serves to significantly reduce the'tailing'of the solvent peak and to eliminate the precipitate produced in the reaction.
目的建立工作场所空气中正丁基缩水甘油醚的溶剂解吸气相色谱测定方法。
To establish a solvent desorption gas chromatography for determining n-Butyl glycidyl ether in the air of workplaces.
目的建立毛细管气相色谱法测定有机金属抗癌原料药二氯二茂钛中的有机溶剂残留量。
OBJECTIVE to establish a capillary gas chromatography method for the determination of residual organic solvents in organometallic antitumor crude drug titanocene dichloride.
前言:目的:建立一种气相色谱法同时测定注射用青霉素钠中有机溶剂丁醇、乙酸乙酯、乙酸丁酯残留量的方法。
Objective: to found a method to detect the residual solvents of Penicillin Sodium for Injection: butanol, acetic ether and butyl acetate.
采用高效液相色谱法及生物效价法对含水溶剂中泰乐菌素有关组分和效价的关系进行了探讨。
In this paper, related components and biological value of tylosin in aqueous solution were measured by high performance liquid chromatography (HPLC) and microbiological assay.
葡萄籽经有机溶剂梯度法及酶法提取,大孔树脂初步纯化,薄层色谱法分离纯化得到原花青素单体和二聚体。
The monomer and dimer of proanthocyanidins in grape seeds were obtained by gradient and enzymatic extraction, isolation with macroporous adsorption resin, and purification by TLC.
应用溶剂浮选法对淫羊霍提取液中的淫羊霍苷进行分离富集,并用高效液相色谱法测定淫羊霍苷的含量。
A solvent floatation technique was applied for the separation and enrichment of icariin in extract from Epimedium and high performance liquid chromatography (HPLC) was applied to determining icariin.
方法:采用溶剂提取和柱层析色谱分离,根据化合物理化性质和光谱数据鉴定其结构。
Method: Compound were isolated by solvent-extraction together with column chromatography and the structure were determined by spectroscopic analysis.
建立了食用油脂浸出溶剂组成的气相色谱分析方法。
A gas chromatographic method for analysis of hydrocarbons in edible oil extraction solvent was developed.
本文研究了在高效凝胶色谱中流速、溶剂性能对高分子降解的影响,考察了几种高聚物的降解情况。
The effects of flow rate and solvent on the degradation of several polymers have been investigated by high performance GPC in this paper.
本文研究了在高效凝胶色谱中流速、溶剂性能对高分子降解的影响,考察了几种高聚物的降解情况。
The effects of flow rate and solvent on the degradation of several polymers have been investigated by high performance GPC in this paper.
应用推荐