杂质

The soxhlet′s extraction has short period,high efficiency and little impurity.

索氏提取法周期短，效率较高，产品杂质较少。

More sophisticated recent methods, such as spectrochemical analysis, are not suited to assaying precious metal ores because the samples of the inhomogeneous ore that must be used are larger than the instruments can handle.

近代较复杂的方法不适合分析贵金属矿，因为那些必需使用的杂质矿样品比工具大得多，不能操作。

M ore sophisticated recent methods, such as spectrochemical analysis, are not suited to assaying precious metal ore s because the samples of the inhomogeneous ore that must be used are larger than the instruments can handle.

近代较复杂的方法不适合分析贵金属矿，因为那些必需使用的杂质矿样品比工具大得多，不能操作。

More sophisticated recent methods, such as spectrochemical analysis, are not suited to assay ing precious metal ores because the samples of the inhomogeneous ore that must be used are larger than the instruments can handle.

近代较复杂的方法不适合分析贵金属矿，因为那些必需使用的杂质矿样品比工具大得多，不能操作。

It is further revealed that all the factors that may affect the synergism of the system, such as molecular structure, crystallization temperature, melting temperature, impurity and poor solvent, would influence the spherulitic morphology of PHA.

系统研究了样品的分子结构、结晶温度、熔融温度、杂质和不良溶剂等对PHA球晶形态的影响，结果表明体系的协同性是形成规整环带的重要原因。

Chapter 7 gives an introduction to Infra-Red Sensitive Phosphors, with emphasis on Double Activator Principle which is of great importance to Infra-Red Stimulable Electron Trapping Materials.

它具有单一相纯度、良好的晶化程度和化学稳定性，组成比较均匀并且接近化学计量比，粒度分布集中，分散性好，缺陷和杂质少等优点。

The cumulative risk of various alkyl- or aryl-substituted sulfonic acid ester impurities should be taken into account.

需要考虑多种烷基或芳基磺酸酯杂质的累积风险。

Newsprint is based on the production of mechanical pulp, and contains a lot of lignin and other impurities, and General eyewhich bleaching or just sulphinic hydrogen peroxide bleaching, not suitable for long-term storage.

新闻纸是以机械木浆为原料生产的，含有大量的木质素和其他杂质，而且一般不经过漂白或仅进行单段过氧化氢漂白，不宜长期存放。

The wavelength as 284 nm. The results shoed that the method is simple, rapid and sensitive. The byproducts were identified as sulphonyl products In HPLC-MS/MS.

实验结果表明此方法选择性好，灵敏度高，不需要标准对照品，操作简便HPLC-MS以及多级质谱鉴定出兰索拉唑试样中的副产物及杂质分别为过氧化产物及未氧化的合成前体。

In this study, we search the raw Pinellia ternate and processing by water containing 1﹪alum for 7 days, and its according to the traditional Chinese medical textbook. We used solid phase extraction to prepare sample and detect by high permance liquid chromatography coupled ultraviolet/visible absorption detector HPLC

中文摘要中草药炮制是根据中医临床用药理论和药物配制的需要，对於药材进行加工及处理，其主要的目的在於消除或降低药材的毒性或副作用、改变药性或提高疗效、清除杂质和非药用部分、便於煎服、制剂和贮藏等。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了