抽提

And the effect of the percentage of hydrochloric acid to acetone,the volume ratio of hydrochloric acid acetone to hematolysis solution were researched.Results:The supersonic wave hemolysis was Established.

结果：确立超声波法进行红细胞溶血，36.5%浓盐酸与丙酮的体积为1%的血红素抽提液，与溶血液的体积比为5∶1抽提10分钟，最终可从新鲜猪血中得到红素6.0 g/L，纯度达99.8%。

Furthermore, single-point energy calculations were refined at the QCISD level of theory with the same basis set (6-311++G**). As a result, the singlet reaction of silylene with isothiocyanic acid contain S-atom abstraction channel, N—H inserted channel, and NH abstraction channel, respectively.

又用QCISD/6-311＋＋G**//B3LYP/6-311＋＋G**方法计算了各个驻点的单点能，计算结果表明单重态的硅烯与异硫氰酸的反应有抽提硫、插入、抽提亚氨基的路径。

Serum total cholesterol was determined by isopropanol withdrawing and ferric-glacial acetic acid -sulfuric acid developing method, serum triglyecride by isopropanol withdrawing and acetylacetone developing method,serum high density lipoprotein-cholesterol by magnesium phosphotungstate mehod, respectively. Serum low density lipoprotein-cholesterol was calculated by the equation: LDL-C=TCh--0.2 TG.

采用异丙醇抽提、三氯化铁-冰醋酸-硫酸显色法检测血清总胆固醇，用异丙醇抽提、乙酰丙酮显色法检测血清甘油三酯，用磷钨酸镁法检测血清高密度脂蛋白-胆固醇，用等式LDL-C=TCh--0.2TG计算血清低密度脂蛋白-胆固醇。

A rapid and effective' test of SOD activity in fresh tomato by the polarographic oxygen electrode is reported in this paper.

本文用极谱氧电极法检测新鲜西红柿中SOD的活力，使用了不同的抽提方法，结果表明用pH7.8磷酸缓冲液加定量KH2PO4的抽提方法，可达到快速、微量、准确的检测效果

Sulfuric acid was sulphonation reagent, add the sulfuric acidquantity was 8%, reaction temperature was 60~65℃.The reaction occursbetween the feed oil and sulfuric acid,then add 30% of sodium hydroxidesolution conducted neutralization in the Pyrex standard react kettle,when the reactionfinished ,draw out the products by funnel,then the products react with 8%clay to refine received the sulphonation refining oil so as to review property andreceive rate of the shallow sulphonation refining oil .By the using the sulphonationrefining oil to blend lubricant,its quality is on-specification .

为验证其可行性，首先在实验室进行浅度磺化小试，原料油采用新疆原油经常压蒸馏、减压蒸馏、溶剂精制、溶剂脱蜡后的减压二、三线脱蜡油，发烟硫酸作为磺化剂，发烟硫酸加入量8%，反应温度60～65℃，用三口圆底耐热玻璃标准反应釜对原料进行发烟硫酸磺化，加入量30%氢氧化钠中和，分液漏斗抽提，在烧杯内加入量8%白土进行精制得到磺化抽余油，考察浅度磺化抽余油性质和收率，用磺化抽余油调合润滑油质量合格。

Baker's, brewer's, and Torula yeast strains serve as common substrates but in general, brewer's yeast require a pretreatment prior to use.

面包、啤酒、圆酵母可以作为原料生产酵母抽提物，但啤酒酵母抽提物要预处理后再使用。

With the purpose of strengthening the understanding of the public on the yeast extract, Angel abbreviates the obscure "yeast extract" into "YE" that is easy to remember.

为了借势强化酵母抽提物对广大民众的认识，安琪公司将生涩的&酵母抽提物&单词简化成便于记忆的&YE&。

In addition, a further study was made of the technique of extraction, isolation and purification of GLA. The factional extraction used in the laboratory with n-hexane and ethanol was changed into the whole extraction of 6〓 solvent, which simplified production technique and reduced cost of production. The fungal lipid extracted from the fermentation in the medium-scale test was concentrated by the urea adducting method with methanol as solvent, at 75～80℃ for 3 hours. After GLA had been adducted twice, the content of GLA came up to 84. 25%, around a twelfth as much as the original concentration.

并对γ—亚麻酸的提取和分离纯化工艺进行了研究，将实验室中用正己烷和乙醇分步抽提的工艺改为用6〓溶剂一步抽提技术，从而简化了生产工艺，降低了生产成本；采用脲素包合法，以甲醇作为溶剂，温度控制在75～80℃，包合时间为3h，对中试发酵所提取的菌油进行了浓缩，γ—亚麻酸两次包合后，GLA含量达到84.25%，比原浓度浓缩了近十二倍。

The result indicated that after the yellow seedlings of wheat was triturated by the high speed tissue triturating machine, high purity mitochondria could be exacted by density gradient centrifugation, and then the mitochondria was ruptured by the 5% SDS and protease K, and the protein was wiped off by organic liquid, pure mtDNA could be extracted.

结果表明，经高速组织匀浆捣碎机研磨小麦黄花苗，简易的密度梯度离心技术快速抽提大黄的高纯度的线粒体，5% SDS和蛋白酶K裂解线粒体及有机溶剂抽提去除蛋白质可获得纯度较高的mtDNA。

By analysing one fire accident in the butadiene extraction plant of Lanzhou Petrochemical Company, this paper establishes a fault tree of fire accidents of the plant.

本文根据兰州石化公司碳四抽提装置的一起着火事故，编制了碳四抽提装置的火灾事故树。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐