relative isotopic abundance

characterizes it by several methods, and calculates the isotopic distribution of peak clusters in the mass spectrum.

并采用多种手段对其进行了表征，对电喷雾质谱图中各峰簇的同位素分布进行了计算归属。

Within the framework of isospin dependent Boltzmann Langevin equation, the isotopic distribution in reaction systems of 14,16,18 O+ 7,9 Be at 28.

同位素分布宽度和峰位与入射体系密切相关 ,产生碎片的电荷数越接近入射弹核的电荷数 ,则同位素分布的宽度越大 ,峰位偏离β稳定线值越远 ,其同位旋效应越明显 。

Isospin effect of fragmentation reaction on isotopic distribution was investigated by a modified statistical abrasion-ablation model.

用修正的统计擦去模型计算了中能重离子碎裂反应产生的同位素分布的同位旋效应 ,发现随着 (Zproj-Z) /Zproj的增大 ,碎裂反应的同位旋效应将逐渐减小直到消失 。

Based on the probability model of isotope distribution,the theoretical isotope distribution with different label efficiency were calculated and the label efficiency of peptide labeled was evaluated by comparing the experimental and theoretical isotope distribution using the least-square method.

提出了1种判别标记肽假阳性的方法,根据同位素分布的概率原理计算出不同标记效率下的理论同位素分布,利用最小二乘法拟合得到标记肽的标记效率,根据标记肽的假阳性阈值来判断标记肽的假阳性,并使用本方法判断了比较蛋白质组试验中的3个标记肽。

relative isotope abundance determination

相对同位素丰度测量

absolute isotopic abundance measurement

绝对同位素丰度测量

Measurement of Isotopic Element Rb s Abundance Ratio with Optical Pumping Magnetic Resonance Method;

光泵磁共振法测量同位素铷的丰度比

APPLICATION OF ISOCS TO MEASUREMENT OF ISOTOPIC ABUNDANCE RATIO OF URANIUM

ISOCS在铀同位素丰度比测量中的应用

Research of Absolute Determination of Isotopic Abundance Using Multiple-Collector Inductively Coupled Plasma Mass Spectrometry and Determination of Samarium Atomic Weight;

MC-ICP/MS同位素丰度绝对测量方法研究与钐原子量的测定

The values of the uncertainties for the isotope abundances have been assessed by the IUPAC and amount to 0.9%~4.8%.

测量其同位素丰度的不确定度只能达到 0 .9%～ 4.8%。

The Measurement of Water Vapor Isotope Based on Mid-Infrared Difference Frequency Generation

基于中红外差频激光测量水汽分子同位素丰度

The isotopic abundance ratio and content are determined with isotopic mass-spectrometry.

文章用同位素质谱法测定了辐照堆元件铀的同位素丰度比和含量。

Accurate Measurement of Lithium Isotope Abundances by Isotopic Dilution Mass Spectrometry Principle

应用同位素稀释质谱法原理准确测量锂同位素丰度

Isotopic Abundance Determinations of Hafnium in a Hafnium Reagent and a Control Rod

铪试剂及控制棒中铪同位素丰度测定

Accurate Measurement for the Concentration and Isotopic Abundance of Rhenium Using Multi-Collector Inductively Coupled Plasma Mass Spectrometer

多接收器等离子体质谱精确测定铼含量及其同位素丰度

Accurate Determination of Cadmium and Mercury Isotope Abundance by Inductively Coupled Plasma Mass Spectrometry

用电感耦合等离子体质谱准确测量镉、汞同位素丰度的研究

Blood Pressure Values During Changing from Supine Position to Various Lateral Positions

不同角度侧卧位对血压测量值的影响

radioisotopic measuring method

放射性同位素测量方法

The Methods of Measuring Radioactive Xenon Isotopes Activity during CTBT Monitoring

CTBT放射性惰性气体氙同位素活度测量方法

Precious Ce Isotope Analysis of Rock Samples by TIMS Method

高精度测量岩石样品Ce同位素组成的TIMS方法

Novel Method for Detecting Synchronous Phases and Instantaneous Symmetrical Components

同步相位与瞬时对称分量的检测新方法

Research of Automatic Measurement System of the Thickness Gauge of Isotope Based on Nuclear Radiation Detector

基于核辐射探测器同位素厚度计自动测量系统的研究