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The contents of 6-gingerol in fresh ginger, dried ginger, ginger wine were measured as 1.86, 3.04, 0.115 mg/g respectively. This method is simple, fast, accurate and convenient.

用6-姜肟做内标测定6-姜的方法准确可靠,可用于生姜及其制品中6-姜的测定。

With this aim, two different haptens mono- O -3-carboxypropyl- diethylstilbestrol and mono- O -carboxymethyldiethylstilbestrol with carboxylic group that preserve the molecular structure character of diethylstilbestrol were synthesized. The haptens were conjugated with the carrier proteins bovine serum albumin by mixed-anhydride method for immunogen and conjugated with ovalbumin by active ester method for coating antigen.

首先,两种保留己烯雌特征结构并具有活性基团的半抗原正丁酸己烯雌单醚、乙酸己烯雌单醚被合成;然后采用混合酸酐法将半抗原与BSA偶联制备成免疫原,采用活性酯法将办抗原与OVA偶联制备了包被原。

Low-boiling phenols in low-temperature coal tar are important chemical raw materials. For the identification and determination of the individual phenol boiling below 210℃ in the low temperature coal tar, the methods of gas chromatography, liquid-liquid chromatography followed by ultra-violet analysis and fractional distillation followed by infrared analysis were evaluated and compared.

随着煤炼油工业的发展,煤焦油中的类,特别是低級,作为化工原料的利用很重要,我們应用(1)气液色譜法,(2)液液色譜与紫外光譜法結合及(3)精餾与紅外光譜法結合三种不同方法对210°以前的低級进行了各种异构体的成分分析,比較分析結果:三种方法对同一样品进行分析时,最大絕对誤差在2%以内,其中以气液色譜法最为快速,液液色譜法次之,精餾-紅外光譜法費时間較多;但后二种方法所得数据較完全。

The effects of phenolic acid compounds in vegetables and fruits on metabolicactivation of BaP in rats,as well as 〓 and TCA induced lipid peroxidation inmouse and Salmonella typhimurium TA104 cells were investigated using DNAadducts as a biomarker to assess DNA damage induced by xenobiotic carcinogens.BaP was used to study the genotoxic carcinogenesis,while 〓 and TCA were usedto study the non-genotoxic carcinogenesis.The possible protection mechanisms ofphenolic acid compounds on DNA damage were studied.

本研究根据化学致癌过程的遗传毒性和非遗传毒性机理,以DNA加合物作为机体接触外来化学物而导致DNA损伤的生物学标志物,通过观察酸类化合物对大鼠体内BaP活化代谢以及〓和TCA诱导小鼠肝微粒体脂质过氧化的影响,及酸类化合物对BaP和TCA诱导的沙门氏菌TA100和TA104形成DNA加合物的影响,探讨蔬菜、水果中酸类化合物对外来化学物诱导的DNA损伤的保护机制。

Amount of total phenolic compounds, total flavones and DPPH scavenging activity for different kinds of vinegars were compared. The results indicate that (1) DPPH scavenging activity of different kinds of vinegars has a positive correlation with amount of total phenolic compounds, total flavones, the correlation coefficients were 0.9523 and 0.8691, respectively,(2) the higher content of phenolic compounds and flavones in Zhenjiang aromatic vinegar respond for its higher scavenging activity.

对不同品种食醋总含量、总黄酮含量、DPPH自由基清除活性的比较分析表明:(1)不同品种食醋自由基清除活性与醋中的总含量、总黄酮含量存在正相关性,相关系数分别为0.9523、0.8691;(2)镇江香醋中由于总含量、总黄酮含量较高因而自由基清除作用较强。

The cross-coupling reaction of DOPO with halogenated phenols were achieved for the first time, novel phenolic hydroxyl-containing reactive-type DOPO-based flame retardants used in epoxy resins were synthesized; the cross-coupling reactions of 2\'-hydroxybiphenyl-2-ylphosphinic acid or diphenyl phosphine oxide with halogenated phenols were studied according to the above result, new reactive-type flame retardants used in epoxy resins were synthesized.

采用Pd催化的方法首次实现了DOPO与卤代的交叉偶联,合成了新型含羟基的反应型DOPO基环氧树脂阻燃剂;在此基础上实现了2-(2-羟基苯基)苯基次磷酸和二苯基氧化膦与卤代的偶联,合成了新型反应型有机磷环氧树脂阻燃剂。

TOC removal lags behind 4-chlorophenol removal in the ·OH-induced oxidative systems, indicating radiolytic technology alone is not efficient in terms of mineralization; the presence of O〓 and alkaline conditions facilitate the mineralization process.

羟基自由基氧化体系中TOC的去除滞后于4-氯的去除,说明单独使用辐射方法,氯的矿化率不高;氧气及碱性条件有利于体系中4-氯的矿化。

The preparation procedures were optimized by orthogonal test L9(34) with the mean particle size and the amounts of total-phenol as indexes. Factors of the extraction pressure and temperature,diameter of nozzle, pre-expansion temperature were evaluated for their effects on preparation process.

以平均粒径、厚朴、和厚朴的总含量为考察指标,采用L9(34)正交实验,对影响RESS制备厚朴纳米液的因素(萃取温度、萃取压力、喷嘴孔径、预膨胀温度)进行优选。

Summary: Regard guava as raw materials, adopt the organic solvent to extract the law, pass the single factor experiment and orthogonal experiment, to influence many phenol draw abstraction pharmaceutical kind of quantity, draw pharmaceutical volume mark, draw time, draw temperature factor go on the discussion compared with material liquid,etc., the ones that confirm much phenol of guava draw the craft parameter bestly: Volume mark 70% ethanol according to material 1:10 volume ratio of liquid, 70 ℃lay reflux draw 40min in temperature, many abstraction amount of phenol can reach 62.35mg/g be thing.

问题补充:不好意思,我修改了一下摘要,正文应该是:以番石榴为原料,采用有机溶剂萃取法,通过单因素实验和正交实验,对影响多提取量的提取剂种类、提取剂体积分数、提取时间、提取温度和料液比等因素进行探讨,确定番石榴多的最佳提取工艺参数为:体积分数为70%的乙醇按1∶10的料液比,在温度70℃下回流提取40min,多的提取量可达到62.35mg/g干物。

Modern medicine to prove: camellia oil rich in oleic acid, and linoleic acid and linolenic acid content of the proportion is also larger and reasonable, and tea oil contains olive oil does not have a specific physiologically active substances, such as: camellia saponin, camellia saponin, tea polyphenols phenol, etc., including: the role of camellia glucoside has a strong heart, camellia saponin with thrombolytic effect, and tea polyphenols have lower cholesterol levels, the chemical prevention of cancer and many other effects, can prevent various cardiovascular and cerebrovascular diseases; Moreover, tea oil free can cause human carcinogen aflatoxin, as well as erucic acid, saponin, and gossypol and other harmful substances, the elderly can benefit from the consumption of tea oil, tea oil is therefore referred to as longevity oil.

现 代医学证明:山茶油中富含油酸,并且亚油酸、亚麻酸含量比重也较大且合理,茶油中含有橄榄油所没有的特定生理活性物质,如:山茶甙、山茶皂甙、茶多等,其中:山茶甙有强心作用,山茶皂甙有溶血栓作用,而茶多具有降低胆固醇、化学预防肿瘤等多种作用,能预防各种心脑血管疾病;而且,茶油不含可引起人体致癌的黄曲霉素以及芥酸、皂素和棉等对人体有害的物质,老年人可因食用茶油而得益,所以茶油被称为&长寿油&。

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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。