微量分析

A spectrographic procedure for determining copper in concentrated iron ores has been worked out for routine analysis.

我们尝试用光谱的方法协助解决分析大量铁矿精矿试样中微量铜(O.05-0.1％)的问题。

Methods Modified Columbia chocolate agar was compared with blood agar staphy stick for the primary isolation of Hi from sputa. The sensitivities of 20 antibiotics to Hi were determined in vitro by KB method and MICs of 12 antibiotics were determined by broth microdilution method. The clinical characteristics of 92 cases with lower respiratory tract infection by Hi were analyzed.

比较改良哥伦比亚巧克力琼脂与血琼脂加金黄色葡萄球菌划线对Hi的分离率；以Kribry-Bauer法测定Hi对20种抗生素的敏感性，以肉汤微量稀释法测定12种抗生素对Hi的最小抑菌浓度；分析92例Hi下呼吸道感染的临床特点。

Through the addition of rare earth oxidation La_2O_3 and CeO_2 into the electrode coating , the effect of rare earth oxidation on high temperature oxidation and sulphidation resistance is studied and the rational addition amount is suggested.

通过A402，A302，A202及Cr24Ni7不锈钢焊条熔敷金属的抗高温氧化腐蚀性能对比试验分析，设计了新的专用焊条合金系统Cr26Nil6，并在焊条药皮中分别添加微量稀土氧化物La2O3及CeO2，研究不同稀土氧化物添加量对焊条熔敷金属在空气中和含硫气氛中抗高温氧化及腐蚀性能的影响，从而确定了合理的稀土氧化物加入量。

However, the content of furanocoumarins were found to be very low or even undetectable in Huang-Qin and herbs not belong to Umbelliferae family, their inhibitory effect could be attributed to the dimeric forms of furanocoumarins or other unidentified components (eg. flavonoid).

然而，对於只含有微量或无法侦测到furanocoumarin成分之黄芩和其他非繖形科之中草药，可能还有本实验中未进行分析的dimeric form之furanocoumarin成分或其他flavonoid之成分，造成其抑制代谢酵素CYP3A4的作用。

The experimental products include crystal phase quartz, feldspar (alkila-feldspar, albite, K-feldspar), zinnwaldite and topaz, a melt phase and a trace vapour. The solid products were been studied by optics method, electron microprobe and X-ray analysis. The results show that liquidus temperature raises slightly and solidus temperature falls down obviously and that the upper temperature limit raises for the stability field of quartz and topaz, and falls down for the stability field of alkila-feldspar as F contents in crease.

实验淬火产物包括结晶相石英，长石(碱性长石，钠长石、钾长石)，铁锂云母和黄玉及玻璃相和微量流体，对固相淬火产物进行了系统和详细的显微观察及电子探针和x射线分析，研究了F对钠长花岗岩液、固相线温度、相关系和相组合的影响和含F钠长花岗岩的结晶序列和熔体演化、F在流体和熔体之间的分配及F对花岗质熔体结构的影响，对含黄玉矿物组合进行了一系列热力学矿物平衡计算，获得如下重要结论

The results showed that the reaction condition was mild (70℃, 60 min). The derivatives could be directly detected by MALDI-TOF-MS without desalted procedure, avoiding lose of sample.

结果显示：衍生化方法反应条件温和(70℃反应60 min)，衍生物不用脱盐处理即可直接进行质谱分析，检测灵敏度高，避免了微量样品的损失。

Disentangling the effects of folate from other micronutrients can be difficult, but the authors think they have succeeded in doing this by looking at several different nutrients in statistical analyses.

disentangling的影响叶酸从其他微量营养素可能有困难，但作者认为，他们已成功地在这样做的看几个不同的养分，在统计分析。

The results show that Mg segregates to the phase bounda-ries of MC/γand γ′/γ. The thickness of Mg on MC/γ phase boundaries is latgerthan that on γ′/γ phase boundaries. The results prove that Mg is not only a grainboundary segregation element, but also a phase boundary searegation one.

结果表明，微量Mg偏析于MC和γ′相界面，而在其内部没有富集；Mg在MC相界面上的偏析厚度大于在γ′相界面的偏析厚度；试验结果及理论分析表明，Mg不仅是晶界偏析元素，更重要的是相界偏析元素。

By using AAS and XRF, the contents of Cr, Pb, Mn, As, Se, Hg, Cd, Zn in raw coal, bottom ash and fly ashes are measured quantitatively in a 220 t/h pulverized coal boiler. Factors affecting the distribution of trace elements are investigated, including fly ash diameter, furnace temperature, oxygen content and trace elements' characters. The coefficient of Meij is also improved to more directly show element enrichment in combustion products. Elements may be classified into three groups according to volatility features of trace elements.

采用原子吸收分光光度计和X射线荧光光谱仪，定量测定了电厂煤粉炉中原煤、底渣、飞灰中Cr、Pb、Mn、As、Se、Hg、Cd、Zn等微量元素的含量，分析了飞灰粒径、炉膛温度、炉内含氧量、微量元素自身性质对微量元素赋存、挥发特性的影响，并根据元素的挥发特性将元素进行分类，得出表征微量元素排放特性的3种数值，并与我国和欧盟垃圾焚烧微量元索排放标准相对照。

A method was developed for the quick determination of glucose using fluorescence capillary analysis.

基于酶催化和荧光毛细分析法开发了一种微量、快速测定葡萄糖的新方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。