稳定同位素

化学交换法富集稳定同位素~（13）C的级联研究

Cascade Enrichment of Stable Isotope ~ ( 13 ) C by Chemical Exchange

低温精馏分离稳定同位素~（13）C的模拟优化研究

Simulation and Optimization of Stable Isotope ~ ( 13 ) C Separation by Carbon Monoxide Cryogenic Distillation

阐明了稳定同位素~（15）N的发展方向及应用前景。

The development orientation and application prospect are presented .

长江口潮滩有机质来源的C、N稳定同位素示踪

Carbon and Nitrogen Stable Isotopes as Tracers to Source Organic Matter in the Yangtze Estuary

N2O的氮、氧稳定同位素真空制样系统探讨

The vacuum apparatus for analyzing nitrogen and oxygen isotopic raitos of n_2o

稳定同位素~（53）Cr在地下水污染研究中的应用

The Application of Stable Chromium Isotope ~ ( 53 ) Cr to the Study of Groundwater Pollution

本文综述了近年来我国农业研究及生产中应用稳定同位素~（15）N所取得的成就；

In this paper , achievements in the application of stable isotope ~ ( 15 ) N for research and production of agriculture in China are reviewed .

根据Pb稳定同位素分析，兴化湾大气颗粒物中的重金属主要来源于工业活动。

According to the analysis of stable lead isotope , particle-associated heavy metals in Xinghua Bay mainly come from industrial activity .

稳定同位素稀释技术随着X射线技术的不断改进，医学成像科学平稳、缓慢地发展了半个多世纪。

For more than half centuries , the sciences of medical imaging grew steadily but slowly , as incremental improvements were made in the X-ray technique .

可活化稳定同位素~（70）Zn示踪研究儿童膳食中锌的生物利用率

Study on Bioavailability of Zinc for Children 's Diet by Using Activable Isotopic Tracer ~ ( 70 ) Zn and Neutron Activation Analysis Techniques

根据稳定同位素特征和成矿地质背景，将区内矿床分为Sn、Ag、Cu、Pb、Zn与W、Sn、Be、Fe两个成矿系列。

The various ore deposits can be divided into Sn-Ag-Cu-Pb-Zn and W-Sn-Be-Fe metallogenic series , according to isotopic characteristics and metallogenic geological background .

研究应用稳定同位素~（15）N－甘氨酸和~（13）C－棕榈酸示踪测定全小肠切除术后患儿的肠吸收功能。

To study the use of nonradioactive isotope labeled substracts ~ 15N-Gly and ~ 13C-Palmitic Acid as tracers in measuring the adaptive absorptive function in a child having undergone total small bowel resection .

Sr同位素方法和其它一些地层学方法，如古地磁方法和稳定同位素方法相比不需要那样高的采样密度，也不受地区、纬度和沉积相等因素的影响，因而应用较为简单。

Sr isotope method is independent of facies and latitude and may not require the high sample density of paleomagnetic and stable isotopic methods .

双聚焦扇型磁式高分辨ICP-MS在人体铁稳定同位素示踪研究中的应用

Application of Double Focusing Magnetic Sector High Resolution ICP-MS to the Study of Iron Stable Isotope Trace

稳定同位素比率质谱法在NFC与FC果汁鉴别上的应用初探

The Primary Research of Stable Isotope Ratio Mass Spectrometry Method in Application of NFC and FC Juice Authentic Identification

本文通过对典型热泉的地质背景、环境条件、水化学及碳、氦稳定同位素的分析，探讨了我国云南省深大断裂出露温泉CO2释放的一般规律。

This paper discussed the rule of CO_ 2 degassing from deep faults hotsprings in Yunnan by analysis of the geology background , environment condition , chemistry of water and carbon , helium isotope .

研究结果发现，从黄河源头至入海口，黄河水具有稳定同位素比率逐渐增大而3H浓度逐渐下降的趋势；

From the river source to the estuary , the ratios of the H and O isotopes are increasing and 3H concentrations are decreasing progressively .

稳定同位素稀释一质谱技术分析KIC的负化学电离法

Measurement of Plasma KIC by Stable Isotope Dilution-Negative Chemical Ionization Gas Chromatography / Mass Spectrometry

经野外地质调查、显微镜观察以及电子探针、X射线衍射及稳定同位素综合分析，确定出：①不同产状的钾长石的主要氧化物含量稳定；

By field investigation , microscope observation , compositional analysis by EPMA , X-rays diffraction analysis as well as oxygen isotope analysis of potash , it is clear that the compositions of potash in different occurrences are stable ;

建立了18O稳定同位素标记方法，用于复杂体系蛋白质相对定量分析。

A method for relative quantitation of complex protein mixtures was developed with oxygen-18 labeling and mass spectrometric analysis .

岩矿石稳定同位素组成指示成矿流体为深部来源，成矿流体中富含CO2（18.656～35.063mol%），成矿温度135～297℃；

The ore-forming fluids are rich in CO2 ( 18.656-35.063 mol % ) with ore-forming temperatures ranging from 135 ℃ to 297 ℃, and the stable isotopic composition of the rocks and ores indicates a deep origin of ore-forming fluids .

目的：利用稳定同位素13C的技术，比较三种类型玉米淀粉（普通淀粉，抗性淀粉2型，抗性淀粉3型）在小肠中的消化吸收。

Objective : To quantify the digestion and absorption of different starch sources in small intestine ( starch , resistant starch ⅱ and resistant starch ⅲ) by stable isotope analyzing technique .

通过对滇东主要断裂带上典型温泉的地质背景、环境条件、水化学及碳、氦稳定同位素分析，探讨这些温泉CO2释放的一般规律。

This paper discussed the rules of CO_ 2 degassing from hot springs on main faults within the east of Yunnan in terms of the analysis of geological background , environmental condition , chemistry of water and carbon , and helium isotope data .

运用本文多源多汇模型研究岩浆同化-分异结晶过程中微量元素和稳定同位素的行为，所得的结果与前人AFC模型结果一致。

When the model is applied to study the behaviors of trace elements and stable isotopes in the assimilated fractional crystallization process , the results are consistent with the previous AFC model .

与平衡态过程相比，它的作用使得稳定同位素的综合分馏系数减小，从而使得降水中δ18O随温度的变化趋缓。

The kinetic fractionation action makes the synthetic fractionation factor decreased and the change of the δ 18 O with temperature flatted , compared to that at equilibrium state .

具体内容如下：（一）基于热量衡算、物料衡算、真空计算，设计了一套采用一氧化碳低温精馏分离稳定同位素13C的工艺流程。

The major works were summarized as followings : 1 . A process flow of stable isotopes 13C separation by CO cryogenic distillation was designed after heat calculation , material calculation , and vacuum computation .

在雨季，受来自海洋水汽的影响，空气湿润，降水量大，大气中ΔTd小，因此蒸发弱，重同位素的富集作用轻，从而降水中稳定同位素比率低。

In rain season with the moist air , heavy precipitation , small Δ T_d in atmosphere , light evaporation and thus light enrichment , influenced by low-latitude marine vapor , the rainfall is characterized with low stable isotopic ratio .

用多维色谱-稳定同位素稀释质谱联用技术测定酒中氨基甲酸乙酯稳定同位素稀释一质谱技术分析KIC的负化学电离法

Determination of Ethyl Carbamate in Alcoholic Beverages With Multidimensional Gas Chromatography / Isotopic Dilution Mass Spectrometry Measurement of Plasma KIC by Stable Isotope Dilution-Negative Chemical Ionization Gas Chromatography / Mass Spectrometry

DSDP与ODP的深入研究，发展了微量元素和稳定同位素地球化学。

With the developing of DSDP / ODP , the rare elements ( Sr and REE ) and isotopic ( Sr and Nd ) geochemistry of marine sediments have been developed .

13C和D等环境稳定同位素在大气圈、水圈和生物圈中广泛存在，可以利用稳定同位素来研究温室气体的形成、转移和消耗等动态过程。

Such environmental stable isotopes as carbon thirteen and deuterium are widespread in the atmosphere , hydrosphere , and biosphere , and can be used to research the dynamic processes of the formation , transfer , and consumption of greenhouse gases .