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The results of experiment show the optimal extraction condition of Gardenia Yellow: refluxing and extracting three times with 50 percent ethanol in 55℃, water-bath and extracting 4 to 5 hours, Gardenia Yellow extract solution is separated by X-5 absorption resin, and then with 30 percent ethanol, getting Geniposide white crystal, the determining purity by HPLC come to 99.1% and can be used as standard, the part doffing by 70% ethanol can be concentrated to get more pure Gardenia Yellow pigment.

实验证明了栀子黄的最佳提取条件:50%的乙醇回流提取3次,55℃水浴加热,提取时间为4-5个小时。栀子黄提取液经X-5大孔吸附树脂分离,用30%乙醇溶液洗脱,纯化得到栀子苷白色晶体,HPLC检测纯度达99.1%,可做标准品使用。70%乙醇洗脱部分浓缩可得栀子黄产品,精制后产品纯度有显著提高。

Conventional meteorologic radar cannot distinguish radar reflectivity and specific attenuation of rain. There is some principled error to measuring rain by it. A new method on inversing rain rate distribution along Earth-Space path by radar-satellite system is presented in this paper.

一种改进气象雷达测雨性能的新方法胡大璋(中国电波传播研究所青岛研究中心,青岛266003)常规气象雷达无法分离雷达反射率和雨衰减率,因此用它测雨具有一些原理上的误差。

Thirty individuals of red swamp crayfish were collected from the ponds and rivers in Hefei City, Feixi County, and Feidong County of Anhui Province in May 2005, and the residual amounts of Cd, Pb and Cr in a total of 84 ectoskeleton, liver, and muscle samples were determined by atomic absorption spectrophotometry.

2005年5月在合肥市、肥东县、肥西县的池塘河沟采集雌雄组克氏原螯虾共30只,分离出几丁质外骨骼、肝脏和腹部肌肉组织样品84份,用原子吸收法测定其中Cd、Pb、Cr的残留量。

With a small osteotome, separate the common origin of the extensor muscles from the lateral epicondyle together with a thin flake of bone, or divide this origin just distal to the lateral epicondyle.

用一小骨凿,带一小块骨片从肱骨外上髁剥下伸肌总腱的起点,或在肱骨外上髁的下方分离。

It concludes that the development of rapid, accurate and efficient methods is important for epidemical investigation and clinical diagnosis of SARS.

结论用荧光定量PCR方法检测SARS患者病原体敏感性高,可靠性和重复性好,优于细胞病毒分离的方法,可以作为SARS临床早期诊断和流行病学调查的重要指标之一。

These near-isogenic lines were precious genetic materials for exactly mapping QTL and studying the effects of QTL and epistasis.

这些近等基因系可进一步用来精确定位性状的QTL位点和分离QTL位点及互作位点的遗传效应。

Results showed that using said separation technique and calculation method to study the crystallization behavior of diesel fuels at cold filter plugging point was feasible.

实验结果表明,用该分离方法以及计算方法来研究柴油在冷滤点温度下液-固平衡态的结晶行为是可行的。

A model for computing the electric field dependent rate constants of gas-phase intramolecular electron transfer reactions by classical path method has been proposed within the activated-complex framework.

用经典轨迹方法,在过渡态理论框架下,提出外电场中气相分子内电子转移反应的速率常数计算模型,并用电子定域初始猜测诱导UHF-SCF技巧实现了两电子定域准透热态的分离。

The pressure field and the velocity field in a cyclone separator were measured with five-hole probe and hot-wire anemometer respectively.

用五孔探针和热线风速仪测定了蜗壳式旋风分离器内的速度场和压力场,分析了上部入口结构、芯管插入深度和锥体长度对流场的影响。

Spitzer is tuned to pick up infra-red radiation—the sort of radiation emitted by dust that has been heated.

斯匹策红用来分离红外线,这是被加热过后的尘埃所放射出的一种射线。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。