1)  quadrupole mass filter
四极杆质量分析器
2)  quadrupolar
四极
3)  quadrupole mass spectrometer
四极质谱
1.
Low-noise and wide-band design of composite preamplifier in quadrupole mass spectrometer;
四极质谱检测中复合放大器的低噪声高带宽设计
2.
Two samples of a set of national standard water samples which have natural level ratio of D and H are set as standards and the other two as unknown samples,a linear calibration method with equal H2+ is studied on GAM400 quadrupole mass spectrometer.
以氘丰度为天然水平的国家一级标准水样中的两个样品作为标准,另外两个样品作为测试样品,在GAM400四极质谱计上探索了等氢分子离子H2+线性校正测量值的方法。
3.
In the paper,hydrocarbon types of gas_oil have been analyzed by a quadrupole mass spectrometer according to the requirements of ASTM D2786 and ASTM D3239.
应用四极质谱仪按ASTMD2786和ASTMD3239分析方法要求对重馏分油的烃类组成进行分析。
4)  Quadrupole Splitting
四极分裂
1.
5h×10 times was measured,and the hyperfine field,isomer shift,quadrupole splitting of samples were investigated.
5h×10次试样的穆斯堡尔谱,考察了深冷处理T12钢的超精细场、同质异能移位和四极分裂值。
5)  Quadrupole mass spectrum
四极质谱
1.
In this paper a new dynamic measuring method of exhaust gas from internal combustion engines using Quadrupole mass spectrum is reported.
分析了四极质谱的基本原理 ,介绍了采用四极质谱动态测量内燃机排气成分的方法及实现动态检测的系统方案和动态测试结果。
6)  quadrupole moment
四极矩
1.
The quadrupole moment of the ground state of 6Li is primarily sensitive to the tensor components of interactions.
发现6Li核基态的电四极矩敏感地依赖于相互作用力中的张量力分量,6-8Li核第一激发态电四极约化跃迁几率增大,呈现集体性,可能是由集团结构所致,对3≤Z≤5和N≈8附近核,存在可能的跨壳激发或壳隙消失现象。
2.
The transition quadrupole moments Qt were deduced from lifetime data.
得到的跃迁四极矩表明129Ce的集体性相对于核芯128Ce减弱。
3.
By means of the effective potentials and with the phase-plane method,the properities of the orbits of particles in the gravitational field with mass quadrupole moment are studied.
通过等效势能图,并利用相平面分析的方法,研究了质量四极矩引力场中粒子轨道的性质。
参考词条
补充资料:质量分析器
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性质:质谱仪的重要组成部件,位于离子源和检测器之间,依据不同方式将离子源中生成的样品离子按质荷比m/z的大小分开。主要类型有:(1)磁分析器,包括单聚焦型和双聚焦型。经加速后的离子束在磁场作用下飞行轨道发生不同程度的弯曲而分离。双聚焦质谱仪的分辨率可达150000;(2)飞行时间分析器被加速的离子按不同的的时间经漂移管到达收集极上而分离;(3)四极滤质器,可以快速地进行全扫描,适合与相色谱仪联用;(4)离子阱和离子迦旋共振分析器,前者结构简单,易于操作,已用于与气相色谱仪联用,分析m/z为200-2000的分子;后者用于傅里叶变换质谱仪上,扫描速率快,分辨率高,能获得较大相对分子质量的信号。

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