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The indigenous microorganisms existed in the contaminated soil could degrade low concentration of chlorophenol 00mgg^(-1, however, their degradative capacity was limited when chlorophenol concentration was high about 500mgg^(-1, which may be caused by the toxic effect of high concentration of chlorophenol on the indigenous bacteria.

土壤中存在的土著的氯酚降解菌可以对低含量的氯酚100mgg^(-1进行降解;但是当土壤中氯酚含量较高500mgg^(-1时,土著微生物的降解能力受到限制,这可能是高浓度的氯酚对土著的氯酚降解菌会产生毒性作用。

96H LC 0,96 h LC 50 ,and 96 h LC 100 of twelve chemicals of phenol ,alkyl benzene and nitrobenzene,and three water samples to sword fish(\%Xiphophorus helleri)\% and rare minnow(\%Gobiocypris rarus\%) were tested.3. The phenol ic waste water was purified through the absorption of polyvingl pyridine.

介绍了含酚废水与聚乙烯基吡啶类树脂接触,酚类会吸附在树脂上,使废水得到净化,然后将吸附了酚类的树脂加热处理回收酚,与此同时,对树脂也进行了再生处理,再生后的树脂可循环使

According to the differences of the materials, there are many methods of synthesis for benzofuranol , such as the pyrocatechol method, the cyclohexanone method, the o-chlorophenol method, the nitrophenol method, the methoxy phenol method, and so on.

根据原料的不同,呋喃酚合成方法可分为邻苯二酚法、邻氯苯酚法、环己酮法、硝基苯酚法、愈创木酚法、邻异丙基酚法、羟基苯异酮法等,文章对前几种较常见的合成方法的原理及工艺进展进行了详细的综述,并展望了呋喃酚合成方法的发展趋势。

A method for the determination of BSA based on the quenching of BSA fluorescence on adding PS and a method for the determination of PS based on the enhancement of PS on adding BSA were developed. The experimental data were processed by the Stem-Volmer equation and Lineweaver-Burk double reciprocal equation.

在不同的pH条件下,酚藏花红与蛋白质的反应导致了蛋白质荧光猝灭及酚藏花红的荧光增强,其荧光猝灭值与酚藏花红的浓度成正比,可用于酚藏花红的分析测定;而酚藏花红荧光增强值与蛋白质浓度成正比,又可用于蛋白质的分析测定。

Urushiol can be used as the basic raw material to develop economic and practical coating with good resistance to high temperature alkaline solution. Thus the polymer precursor was prepared using the polymerization of urushiol and formaldehyde. Then the urushiol-titanium chelate polymer (urushiol-Ti resin) was synthesized by way of the reaction of tetrabutyl titanate with the polymer precursor. The prospective target product was analyzed by means of high-performance liquid chromatography and Fourier transformation infrared spectroscopy.

为开发经济实用的耐高温碱水漆酚钛清漆,以漆酚为基本原料,先通过漆酚与甲醛缩聚,再将钛酸丁酯与前期合成产物反应,从而合成出了漆酚-钛螯合高聚物,并通过高效液相色谱和傅立叶红外技术检测了预期产物的合成情况。

Result The results showed that phenolic compounds of Canarium album Raeusch fruit mainly distributed in pulp, which total phenolic content was about 1.5%, and phenolic acids with structure characteristic of hydroxybenzoic. And gallic acid, ellagic acid were the main phenolic compounds in Canarium album Raeusch, their relative content were 38.8% and 14.3%, respectively.

结果]结果表明:橄榄果实中的酚类成分主要集中在果肉中,其总酚含量约为1.5%,橄榄中的酚类成分以含苯甲酰结构的酚酸类为主,其中主要的酚类化合物为没食子酸和鞣花酸,相对含量分别为38.8%和14.3%。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂,甲醇为溶剂的回流提取法来提取植物多酚,用显色反应检识酚羟基;采用紫外分光光度法对多酚粗体物进行总多酚含量的测定;选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌,采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验,并测定其最低抑菌浓度;采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析,根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

Alkylphenol ethoxylates are nonionic surfactants and extensively used in industry. Manufacturers in Taiwan used to import nonene to produce nonylphenol and nonylphenol ethoxylates. They used to import octylphenol directly because it isn't easy to get octenes.

烷基酚聚乙基醚醇是工业上用途非常广泛的非离子性界面活性剂,国内目前有进口壬烯生产壬基酚及壬基酚聚乙基醚醇,而由於受限於辛烯原料取得不易,辛基酚都是直接进口。

Gas chromatography and mass spectrometry technique were employed to analyze the ginger oleoresin. This analysis resulted in the detection of 3 hitherto unknown natural compounds, 24 compounds previously reported as pungent compounds and 50 volatile compounds from ginger. The volatile compounds were mainly α-zingiberene (22.29%),β-sesquiphellandrene (8.58%),α-farnesene (3.93%),β-bisabolene (3.87%),α-curcumene (2.63%), which were mostly consisted of sesquiterpene hydrocarbons.

从姜油树脂中分析出77种化合物,其中挥发油成分50种,主要是α-姜烯(22.29%)、β-倍半水芹烯(8.58%)、α-法尼烯(3.93%)、β-没药烯(3.87%)和α-姜黄烯(2.63%)等倍半萜类化合物;姜辣素成分27种,主要成分为6-姜酚(9.38%)、6-姜烯酚(7.59%)和分析过程中由姜酚类或姜烯酚类化合物受热分解而形成的姜油酮(9.24%)。

The objective of this work is to study the characterization of immobilized polyphenol oxidase from banana leaves and its application on the transformation of phenolic compounds. Polyphenol oxidases of banana leaves from a variety of sources were compared. Among them, PPO from Giant cavedishii leaves showed the highest specific activity (315 units/mg).

摘要 本研究目的在探讨固定化香蕉叶多酚氧化酶之特性及於酚类化合物转化之应用,首先探讨不同品种香蕉叶多酚氧化酶并比较不同之固定化方法,结果以北蕉的单酚酶比活性最高315,活性约为其他品种之2-20倍。

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