常量元素

镁是可被人体吸收的常量元素，且具有较高的比强度和比刚度，在医用植入材料领域具有广阔的应用前景。

Magnesium is a macroelement that can be absorbed by human bodies , and with high specific strength and stiffness , it has a broad application prospect in the field of medical implant materials .

常量元素和稀土元素的研究表明，红土型金矿矿石一般具有原始卡林型金矿风化产物和喀斯特红土的混合特征。

Macroelement and REE geochemical studies indicate that ores of this lateritic gold deposit the possess mixed features of the weathering product of a primary Carlin type gold deposit and karst laterite .

地质样品中23个常量元素和微量元素的X射线荧光光谱仪测定

The determination of X ray fluorescent spectrum of 23 constant element and microelement in geologic samples

ICP-AES法测定胎儿小脑组织中生物必需常量元素K、Na、Mg、P的研究

Study on Determination of Biological Essential Macro - Elements K , Na , Mg , P in Fetal Cerebellum by ICP - AES

ICP－AES同时测定土壤和沉积物中全硼与其它微量及常量元素

Simultaneous Determination of Boron and Other Trace Elements , Macro-Elements in Soil and Deposit by ICP-AES

本文介绍了以低压聚乙烯垫底、镶边、粉末直接压片、X荧光谱定量测定土壤中常量元素的方法。

The method has been described on the determination of major elements in soil using pressed powder pellets rimmed and backed with low pressure polyethlene by XRF .

为探讨Graves病患者头发6种元素含量变化与临床的关系，检测并比较了32例患者头发中微量元素Zn、Cu、Fe、Mn和常量元素Ca、Mg含量。

The content of the trace element Zn , Cu , Fe , Mn and ordinary element Ca , Mg in hair of thirty-two patients with Graves was determined .

运用ICP-AES谱线轮廓图功能，消除常量元素产生的基体背景干扰。

The base line background noise interference caused by the main elements ' emission lines was eliminated by using the profile function of the ICP-AES .

金红石矿床含矿岩石常量元素总体上与玄武岩接近，但以低硅、高钛、高CO2、高碱度为特征。

The most common elements are close to basalt 's in Rocks of containing ore , but SiO 2 is lower and TiO 2 , CO 2 and alkalinity are higher .

对太湖现代沉积物进行了X射线衍射分析、粒度分析和常量元素分析，由此推断它们的矿物成分、化学风化程度差异，并分析了不同的水动力条件和物源。

On the basis of X-ray diffraction , sedimental size and major elements analyses , we deduce the chemical weathering degree of sediments in Taihu Lake and illuminate the hydrodynamic condition and the source of sediments .

研究了等离子发射光谱法（ICPAES）直接测定钕铁硼永磁材料中常量元素Nd，Fe，B的方法。

The method for direct determination of neodymium , iron and boron in Nd-Fe-B permanent magnetic materials by inductively coupled plasma-atomic emission spectroscopy ( ICP-AES ) was studied and suitable analytical lines were selected .

岩浆型矿床，常量元素与超基性岩接近，TiO2与Al2O3、（La／Lu）N等呈正相关。

The invariable elements magmatic deposits are close to of the ultrabasic rocks , the TiO 2 is correlated with Al 2O 3 and ( La / Lu ) N etc. in positive correlation .

ICP-OES法测定吉林省部分地区大米中常量元素和微量元素的含量

Content of Major Elements and Mineral Elements in the Rice Detected with ICP-OES in Jilin Province

应用电感耦合等离子体原子发射光谱（ICP-AES）法，对硼硅酸盐玻璃中的常量元素Si、Ca、Al、B及微量元素Fe、Ti、Mg进行测定。

A method for the determination microelements of Si , Ca , Al , B and macroelements Fe , Ti and Mg in borosilicate glass by inductively coupled plasma atomic emission spectrometry ( ICP-AES ) was described .

本文在硅酸盐分析中，采用了康普顿散射靶线（Rhkα）为内标，以补偿常量元素的吸收效应，并用于花岗岩样品中Zr、Y、Sr、Rb、Zn的直接测定。

By using Compton scattering X-ray as internal standard in analyzing silicates , the major elements effect can be compensated . It is thus possible to determine directly Zr , Y. Sr.

常量元素w（Ca）/w（Mg）比值在以白云岩为主的蒸发台地、局限台地相中最低，在潮下开阔台地、台地边缘浅滩沉积中则由于白云岩不发育而比较高。

The w ( Ca ) / w ( Mg ) ratio of major elements is relatively low in dolomite-dominated evaporate platform and restricted platform facies , while relatively high in open platform and platform marginal shoal deposits where dolomite is not developed .

本文利用SEM-EDX和ICP对吉林西部两个采样点的碱尘气溶胶进行分析，获得了碱尘气溶胶样品的矿物组成和常量元素组成。

Mineralogical and elemental compositions of aerosol concerning alkaline dust are investigated from two experimental sites in western Jilin province , employing SEM-EDX and ICP systems .

同时对其中的SiO2、TiO2、Al2O3等10种常量元素，按氧化物之和为100%进行了归算。

For calculating the element contents , the total sample statistics and iteration pick-out method were used , the abundances of ten oxides including SiO2 , TiO2 , Al2O3 , etc. , were normalized to 100 % .

常量元素之间的相关性以及常量元素与金的相关性分析表明K2O、Fe2O3、Al2O3在红色粘土中为共生元素；

Correlations among major elements and between major elements and gold indicated K 2O , Fe 2O 3 and Al 2O 3 were coexisting oxides in red clay .

通过对北京市12个具代表性公园的道路粉尘取样调查，测定了粉尘中常量元素Fe，Ca，Mg，K及重金属Cu，Pb，Zn的质量分数以及pH值。

The contents of major elements Fe , Ca , Mg , K and heavy metals Cu , Pb , Zn as well as pH value in the dusts were measured , based on sampling investigating of road dust in 12 representative parks in Beijing .

裂隙水中常量元素和微量元素主要来源于长石类矿物的水解，特别是钙长石的水解，其中SiO2和Sr在裂隙水中含量较高，已达到饮用矿泉水标准。

The common elements and trace elements in crevice water are mainly derived from hydrolysis of feldspars , especially anorthite . The contents of SiO2 and Sr in crevice water are relatively high and have met the standards of drinking mineral water .

通过对南黄海中部B10岩心的碳酸钙、常量元素和微量元素分析发现，岩心的地球化学特征基本反映了该海区晚第四纪气候变化、海面波动以及沉积物供应的变化。

Variations in elemental concentrations and ratios in Core B10 taken from the southern Huanghai Sea indicate climatic oscillations , sea level fluctuations and sediment supply changes in Late Quaternary in the region .

采用DFJ-1型5段分级采样器，对粉煤灰中不同粒径颗粒物中常量元素和微量元素的组成和化学形态进行了分析。

Major and trace elements composition and species in the different diameter particle were sampled and measured in fly ash using DFJ 1 model five stage classification air samples .

滇西上芒岗红色粘土剖面中常量元素的垂向分布研究表明，K2O、Fe2O3、Al2O3在剖面中的变化一致，呈双峰曲线变化，即在坡积带稍有富集、在残积带明显富集；

We analyzed the distribution of major elements in the red-clay profile . The results indicated K 2O varied in consistence with Fe 2O 3 and Al 2O 3 in red clay . Their contents are slightly high in the slopewash zone and distinctly high in the eluvial zone .

妊娠妇女常量元素和必需微量元素的含量及分析

Analysis of sera concentration of macro element and microelement in pregnancy women

用14MeV中子活化分析陨石样品中的常量元素

The activation analysis of major elements in meteorites by 14 MeV neutron

新生儿头发微量及常量元素测定

Determination of Trace and Macro Elements in Neonate 's Hair

神经递质的合成需要微量元素及常量元素。

Neurotransmitter synthetise needs trace and con - stant elements .

应用常量元素同位素和微量元素地球化学方法定量划分水体盐度；

Isotope and microelement geochemistry methods quantitatively divide water salinity ;

岩浆岩体含矿性评价的某些常量元素标志

Some macro-element markers on evaluating mineralization of igneous rock body