ObjectiveIn order to make use of the resources of the gingers, avoid wasting, approach the extraction and determination contents of the total flavanone of the gingers.
目的探讨生姜中总黄酮的提取及鉴别方法,以充分利用生姜植物资源,避免资源的浪费。
A method for determining mercury (Hg) in reprocessing process was investigated with separation by dithizone extraction and determination by cold atomic fluorescence spectrometry.
本工作建立了双硫腙萃取分离,冷原子荧光光谱法测定后处理工艺中汞的方法。
A gas chromatographic method for the determination of methamidophos pesticide residues in the Allium Chinense was established by means of micro chemistry and solid phase extraction techniques.
采用微量化学方法和固相萃取技术,建立了气相色谱法简单、快速、准确地测定荞头中甲胺磷农药残留量的方法。
It will direct people to deal with Aloe correctly by studying on extraction method on the effective components and the determination of trace metal in the Aloe.
对芦荟中微量金属元素的测定及芦荟有效成分的萃取方法的研究可以为人们正确使用芦荟提供一定的指导。
The speciation analysis of trace elements in Chinese traditional and herbal drugs, which related to their extraction, separation and determination, was reviewed with 34 references.
综述了中草药中微量元素形态分析的内容以及元素形态的提取、分离与测定。引用文献34篇。
The method is able to decrease the loss of se in sample decomposition, shorten the time of complexing and extraction and raise accuracy of the determination of se.
该方法使样品消化过程中的硒损失大为减少,使络合萃取时间变短,提高了硒测定的精密度和准确度。
A new method was established for the determination of germanium in Chinese herbs, plants and sediment samples by extraction graphite furnace atomic absorption spectrometry (GFAAS).
建立了萃取-石墨炉原子吸收法测定中草药、植物样品及水系沉积物中微量锗的方法。
The method of determination of copper in light oil by air-acetylene flame atomic absorption was discussed in this paper, and the extraction and enrichment of copper in light oil was reviewed.
探讨了用原子吸收空气-乙炔火焰连续测定轻质油中痕量铜的方法,并考察了轻质油中铜的萃取富集方法。
Objective To explore the technological processes of extraction, identification and determination of total flavone from folium Camelliae for fully making use of Camellia sinensis resourses.
目的为充分利用茶叶植物资源,避免浪费,探讨茶叶总黄酮的提取、鉴别及其含量测定方法。
A rapid, simple and accurate method for the determination of momordicoside A has been established using solid phase extraction (SPE) followed by high performance liquid chromatography (HPLC).
建立了一个快速、简单、准确的固相萃取和高效液相色谱相结合的测定苦瓜甙A含量的方法。
Test method, GB/T2912.1—1998 Textiles-Determination of formaldehyde-Part 1: Free and hydrolyzed formaldehyde(Water extraction method), was taken on(initiated?) .
检测方法采取GB/T2912.1—1998《纺织品中甲醛的测定第一部分:游离水解的甲醛(液相萃取法)》。
Objective:To review literature data and investigate the method of process of extraction, of identification, and determination of content in polysaccharide of Oxytropis myriophylla.
目的:考察文献资料方法,探讨提取多叶棘豆中多糖,并鉴别多糖及含量测定的方法。
This paper reported the extraction and the preliminary determination of flavonoids in sweet potato leaves and stems by UV-spectrophotometry using rutin as comparison sample.
通过对甘薯叶、茎中的总黄酮含量进行了提取,以芦丁为对照品,用紫外分光光度计对其含量进行了初步测定。
Occurrences and forms of hydraulic fractures in drilling wells are analyzed for extraction of coalbed methane(CBM). The determination basis of dips, strikes and shapes of the fractures are presented.
对钻井水力压裂开采煤层气时,所形成的裂缝产状和形态进行了理论分析。提出了裂缝倾角、走向和形状的确定依据。
The structure and nature, function, extraction, determination and application in the food industry of heme iron are summarized in this article.
该文综述血红素铁结构与性质、功能、提取、测定方法和在食品工业中应用情况。
So the paper is mainly study the rapid detection of pesticide with electrochemical and solid phase extraction techniques, and the determination of a medicament has been obtained.
为此,本文主要用电化学手段和固相萃取技术进行农药残留检测方法的研究,并建立了一种药物的检测方法。
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。
The present analysis of pesticide residues was surveyed in two respects: the analytical techniques for the extraction and the determination of pesticide residues.
从样品提取技术及分析检测技术两方面介绍了目前国内外流行的农药残留分析检测技术。
The different extraction methods are compared in the determination of negative ion surface active agent. The steps are simplified and the efficiency is improved.
通过对水中阴离子表面活性剂测定中不同萃取方法的比较,从而简化操作步骤,提高了工作效率。
A flow injection on line extraction chromatographic separation and preconcentration system is proposed for the determination of trace palladium by flame atomic absorption spectrometry (FAAS).
以三异辛胺萃淋树脂为微型柱固定相,采用流动注射在线预浓集与火焰原子吸收法联用技术,对微量钯的测定进行了研究。
A method for the simultaneous determination of captan and folpet pesticide residues in apples was developed by solid-phase extraction and high performance liquid chromatography.
采用硅镁吸附剂和硅胶作吸附剂,建立了固相萃取-高效液相色谱法同时测定苹果中残留的克菌丹和灭菌丹的分析方法。
The results show that the crown ether extraction- neutron activation method can be satisfactorily applied to the separation and determination of trace rhenium in rock samples and complex systems.
研究结果表明冠醚萃取中子活化法可较好地用于岩石和复杂体系中痕量铼的分离分析。
This paper summarizes the development of the property, extraction and purification, and quantitative determination of Camellia Saponin. Besides, issues needing further study were indicated.
本文综述了油茶皂素的性质、提取精制及油茶皂素定量方法的研究,并总结了当前茶皂素研究中最值得进一步研究的问题。
A new solid phase extraction-gas chromatography-mass spectrometry(SPE-GC/MS) method for simultaneous determination of ractopamine and clenbuterol in animal urine was reported.
建立了固相萃取-气相色谱-质谱法(SPE-GC/MS)同时测定动物尿样中的莱克多巴胺和克伦特罗的方法。
The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.
样本用丙酮提取,加二氯甲烷萃取,通过中性氧化铝和活性炭混合柱层析净化,然后上气相色谱用NPD检测。
Reduction extraction, the electrochemical. the activation and the surface analysis methods used in determination of gas in these low melting and volatile metals are particularly outlined.
认为采用石墨盒或金属包套的惰气熔化法是目前分析易挥发金属中氢、氧的普遍方法。
A new method has been studied for the determination of trace phosphorus in iron, nickel and copper by floatation-extraction spectrophotometry with molybdate and malachite green in acid solution.
研究了在酸性介质中,钼酸盐孔雀绿浮选分光光度法测定铁、镍、铜中痕量磷。
In this paper the research progresses on determination of biogenic amines in food by RP-HPLC are reviewed. The methods of extraction, purification and derivation of food samples, the select...
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。
This experiment used the rope extraction process from the Chinese angelica and the liquor Chinese angelica withdraws the effective component, determination, the hydroxy free radical ability.
试验采用索氏提取法从生当归和酒当归中提取有效成分,测定抑制羟自由基的能力。
This experiment used the rope extraction process from the Chinese angelica and the liquor Chinese angelica withdraws the effective component, determination, the hydroxy free radical ability.
试验采用索氏提取法从生当归和酒当归中提取有效成分,测定抑制羟自由基的能力。
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