1)chromium stable isotope铬稳定同位素
英文短句/例句
1.A Double-spike Method Study of Cr Stable Isotopic Analysis and Its Monitoring Application in Cr-contaminated Water铬稳定同位素双稀释剂法分析技术与应用
2.stable isotope geochemistry稳定同位素地球化学
3.stable-isotope dilution technique稳定同位素稀释技术
4.stable isotope dilution mass spectrometry稳定同位素稀释质谱法
5.A study of the stable isotopes of the disperse elements(Ge,Cd,Tl)分散元素(Ge,Cd,Tl)稳定同位素研究
6.Stable Isotope Analysis of Elements in Kerogen干酪根中各种元素的稳定同位素分析
7.Study on the Tracing Technology of Chicken by Stable Isotopes;利用稳定同位素进行鸡肉溯源的研究
8.Study on the Variable Characteristic of the Water Stable Isotopic Compositions in Yangtze River Basin;长江流域水稳定同位素变化特征研究
9.Study on the Tracing Technology of Beef by Stable Isotopes应用稳定同位素进行牛肉溯源的研究
10.A COMMON MISTAKE INVOLVED IN STABLE ISOTOPE FRACTIONATION CALCULATION稳定同位素分馏计算的一个普遍错误
11.Provenance difference in stable carbon isotope discrimination of Schima superba木荷稳定碳同位素分辨率的种源差异
12.CHANGES OF STABLE ISOTOPES CARBON-13 AND NITROGEN-15 IN DIFFERENT TISSUES OF CATTLE稳定性同位素碳、氮在牛不同组织中的变化规律
13.Measurement and Analysis of Stable Carbon and Nitrogen Isotope of Amino Acids in Wheat Grain小麦籽粒氨基酸碳氮稳定同位素的测定与分析
14.Simultaneous Determination of Impurities in K_2CrO_4 by ICP-AESICP-AES法同时测定铬酸钾中杂质元素
15.It is seen that the points representing stable isotopes define a rather narrow stability region.可以看到，表示稳定同位素的那些点，构成一个很窄的稳定性区域。
16.Studies on Genetic Stability and Environment Influence of Stable Carbon Isotope of Pinus Tabulaeformis;油松稳定碳同位素遗传稳定性及环境影响的研究
17.An hour later the next lighter stable isotope, xenon 134, appeared.一小时之后，略轻一点的稳定同位素氙134出现。
18.Information of low cloud amount recorded in δ~(13)C series of tree ring cellulose of Pinus Koraiensis in Antu Area安图红松树轮稳定碳同位素记录的低云量信息
相关短句/例句
stable isotope稳定同位素
1.The characteristics of stable isotopes and gas-liquid inclusions of the Shanmen Ag deposit,Jilin Province;吉林省山门银矿稳定同位素及气液包裹体特征
2.Fluid inclusion and stable isotope studies of the Baolun gold deposit, southwestern Hainan, China;海南西南部抱伦金矿床流体包裹体及稳定同位素特征
3.Drift features of oxygen and hydrogen stable isotopes in deep groundwater in mining area of northern Anhui;皖北矿区地下水中氢氧稳定同位素的漂移特征
3)stable isotopes稳定同位素
1.The characteristics of stable isotopesin Larma gold deposit and the genesis of its ore depdsit;拉尔玛金矿床稳定同位素特征及矿床成因
2.Primary research on geochemistry of stable isotopes in the Bofang copper deposit,Hunan;湖南柏坊铜矿床稳定同位素地球化学初步研究
3.The new fundamental law is 1,2,4,8,16,8,4,2,1 for distribution of stable isotopes.综Zn Os Cd 4876681163040364010202028合得到稳定同位素的新基本规律是:1,2,4,8,16,8,4,2,1。
4)chromium isotope铬同位素
5)stable isotope analysis稳定同位素分析
1.Stable isotope analysis is widely used in dietary reconstruction, host\|shifting and migration, flows of mass and energy through ecosystems, and construction of food web.综述了稳定同位素分析的原理与方法以及应用于昆虫生态研究的理论基础与进展 ,并对其发展前景进行初步探讨。
2.In this paper,the theoretical basis and advances for the application of stable isotope analysis to seagrass ecology research in recent 20 years are summarized,and the prospects for the stable isotope data analysis,the application of stable isotope analysis to seagrass pollution ecology and the use of seagrass δ~(15).在海草生态学研究中,稳定同位素分析方法能有效地揭示海草床中食物网的构建和能量流动以及海草床的环境质量状况。
6)stable carbon isotopes稳定碳同位素
1.Based on stable carbon isotopes,an item-by-item analysis of the comprehensive system of Liangfeng cave in Guizhou is presented.基于稳定碳同位素方法,通过对贵州凉风洞洞穴综合体系的逐项分析,表明洞穴滴水较好地继承了土壤水所携带的地表气候与生态环境信息。
2.Based on the characteristics of triaromatic steranes,alkyl triaromatic steranes and stable carbon isotopes,the sources of the condensates were analyzed in Paleogene in Hongzhuang Oilfield in Qintong Sag,Northern Jiangsu Basin.根据原油和烃源岩中三芳甾烷及甲基三芳甾烷组成特征,结合稳定碳同位素值,分析了苏北盆地溱潼凹陷红庄油田古近系凝析油的油源特征。
3.The stable carbon isotopes(δ13C)compositions of 28 plant species growing in Ebinur Lake Wetland in Xinjiang,China were measured.该文分析了艾比湖湿地13科、25属的28种主要盐生植物的稳定碳同位素组成。
延伸阅读
稳定同位素稳定同位素stableisotopes某元素中不发生或极不易发生放射性衰变的同位素。1913年，J.J.汤姆孙和F.W.阿斯顿用磁分析器发现天然氖是由质量数为20和22的两种同位素组成，这是首次发现的稳定同位素。1919年阿斯顿用质谱仪在71种元素中发现了202种核素，绝大多数是稳定的。现在，已知有81种元素有稳定同位素，稳定核素的总数为274种(包括半衰期大于1015年的放射性核素)。通常以原子核的比结合能（每个核子的平均结合能）ε＝EB／A作为稳定性的量度，式中EB为核的结合能，A为核子数。ε越大，体系的能量越低，同位素越稳定。核素的稳定性还与核子数的偶奇性有密切关系，原子序数为偶数的元素比奇数的元素有更多的稳定同位素。元素的同位素组成常用同位素丰度表示，它是指一种元素的同位素混合物中，某特定同位素的原子数与该元素的总原子数之比。由于自然条件下进行多种物理、化学和生物等作用，使元素同位素组成在某一范围内涨落。大多数元素是其同位素的混合物，将其彼此分离（或部分分离）是一种特殊精密的技术，有扩散法、精馏法、化学交换法、电解法、离心法、电磁分离法、激光化学法等。各种纯的稳定同位素用作核物理和核化学研究的材料。氢、氮、碳、氧、硫等轻元素的稳定同位素广泛用作示踪原子，用于研究化学和生物化学中各种过程和机理，以及分子的微观结构与性质的关系等重要课题。
