查询词典 trace elements

Recently, a nearly E-W-striking, over 10 km long albitite zone has been recognized for the first time in the Lower Silurian Meiziya Formation in a Lower Paleozoic lead-zinc ore deposit concentration area of the Xunyang basin, South Qinling. It shows a conformable contact and gradational relationships with the country rocks and has thick-bedded and massive, banded, brecciated structures and fine and very fine equigranular and intraclastic textures. It is chemically characterized by enrichment in SiO2, Al2O3 and Na2O and is rich in the trace elements Fe and Mn and poor in the trace elements Co, Ni and Cu. Its ∑REE, LREE and HREE are lower than those of the country rocks and exhibit pronounced Eu depletion.

最近，在南秦岭旬阳盆地下古生界铅锌矿集区内的志留系梅子垭组地层中首次识别出一条近东西方向延伸长达10余千米的钠长石沉积岩带，与地层整合产出，渐变过渡，厚层块状，条带状，角砾状构造，均粒微-细晶结构，内碎屑结构；其化学成分以富含SiO2，Al2O3及Na2O为特征，富Fe，Mn，贫Co，Ni，Cu等微量元素；该钠长石岩的∑REE，LREE，HREE均较围岩偏低，具明显Eu亏损的特征。

arsenic can effect the balance of trace elements in human's body and the u nba lance of trace elements may be one of the important mechanisms of arsenism.

砷可影响人体内微量元素的平衡，微量元素的失衡可能是砷毒作用的重要机制之一。

The results showed that,except for Ni in the seed, six trace elements existed in all the organs, including the young leaf, old leaf, stem, flesh, seed, stone and root, but the contents of these trace elements differed to some extent among different organs, trees or cultivars. The contents of Fe, Mn, Cu, Zn and Ni of all the organs in Canarium album Raeusch.

结果表明：除Ni在种子中未检出外，所测6个元素在橄榄新叶、老叶、茎、果肉、种子、果核、根等器官中均有一定的分布；各微量元素在不同器官、不同植株以及不同品种之间存在一定的差异。

The results show that 1% is the appropriate nitric acid (60% Merk "Ultrapur" HNO3) content in samples while higher response intensities of trace elements can be obtained, as well as considering the large range of concentrations of trace elements in snow and ice samples from central Asia.

结合中亚山地冰川雪冰中痕量元素浓度差别大的特点，确定硝酸在样品中的含量为1%为合适的酸度。并对卓奥友峰和珠穆朗玛峰雪坑样品进行了分析方法的重复性研究。

The coprecipitation is based on the formation of water-insoluble inner complex compounds of the trace elements with-SH group-containing reagent and the formation of disulphide directly in the solution owing to the easy oxidizability of the-SH group. During the formation of the solid disulphide phase the trace elements are coprecipitated.

痕量元素和含-SH基团的试剂形成不溶於水的螯合物，由於-SH基团易被氧化从而直接在溶液中形成固相二硫化物，同时将溶液中的痕量元素共沉淀下来。

This dissertation is characterized with the application of petrological methods in the study of trace elements in coals. The modes of distribution of trace elements in macerals and minerals in coals are proposed by means of the integration of two well-operated technologies, sink-float test and maceral analysis.

本文的主要特色在于将煤中微量元素研究与煤岩学方法紧密结合，运用浮沉试验及煤岩分析两种成熟技术，有效地解决了煤中微量元素在各种组分中的分布研究问题。

Modes of occurrence of trace elements in coals from representative coalfields in China It is the core of the dissertation to investigate the modes of occurrence of trace elements in coals from typical coalfields in China.

中国煤中大多数微量元素平均含量，与世界范围内煤中微量元素平均含量相比，基本在同一水平线上，中国煤炭利用造成的微量元素污染问题，主要是由于落后的用煤方式、累积效应及有害微量元素局部异常富集引起的。

Greywacke samples of Middle and Late Triassic collected from Hongcan well in Zoige were analyzed by ICP-MS for REE and trace elements. The result shows that these samples were originated continental crust because they enriched in Cs,Rb,Th and high REE contents and depleted in Sr,Nb and Ta. Negative Eu anomalies and strong differentiation between heavy and light REE are significant. Both the contents and ratios of the inactive trace elements and the results based on discriminant diagrams indicated that the sedimentary tectonic setting of Zoige Basin was dominated by continental island arc and the sediment in this basin was strongly affected by continental island arc between Middle and Late Triassic.

对若尔盖地区的红参一井内中三叠世中期和晚三叠世中期的37个杂砂岩样品进行了ICP-MS微量元素分析，其结果显示这些砂岩样品具有Cs、Rb、Th等元素富集，Sr、Nb和Ta亏损，稀土元素总量较高，且负Eu异常和轻重稀土分异明显等壳源物质的特征；而微量不活动元素的含量及比值特征以及构造环境判别图解的判别结果表明：若尔盖盆地中三叠世中期到晚三叠世中期的沉积构造环境为大陆岛弧，沉积物源受到大陆岛弧的强烈影响。

The ancients said:"longevity in air can cause longevity", so pine pollen can be called "King of pollen." 2, full nutrition are pine-hung pine pollen-tipped stamens of the sperm cells, bears a heavy pine reproduction, which is the essence of pine, Beijing 301 Hospital of trace elements by the Research and Technical University of Munich, Germany (Europe's best-known trace elements Research Center) in cooperation of pine pollen nutrients all made the most scientific testing, during the surprise discovery of pine pollen longevity life contains all the necessary nutrients, and with a reasonable and be able to fully complement and balance the human body nutrition.

古人称：&松柏之气可以使人长寿&，所以松花粉堪称&花粉之王&。2、全营养松花粉是松树雄花蕊的精细胞，担负着松树繁衍的重任，它是松树的精华，经北京301医院微量元素研究室与德国慕尼黑技术大学（欧洲最著名的微量元素研究中心）合作，对松花粉所有的营养成份作了最科学的检测，期间惊奇的发现，松花粉里含有长寿生命体所需的全部营养成份，且搭配合理，能够全面补充、均衡人体所需的营养。

Algae essence organic iodine feed additive is made from kelps, it's completely natural, it contains algae sulfated polysaccharide, superoxide dismutase, etc 15 active substances, and more than 10 trace elements including calcium, magnesium, and cobalt, etc, it's called "natural active substance, and treasury of trace elements".

海藻精有机碘饲料添加剂取之于海带，完全天然，含有海藻硫酸多糖、超氧化物歧化酶等15种活性物质，还有钙、镁、钴等10多种微量元素，堪称&天然活性物质、微量元素宝库&产物。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。