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1)  quadrupole spectrum
四极能谱
2)  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。
3)  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。
4)  quadrupole mass spectrometry
四极质谱
1.
The behavoirs of unsubstituted and substituted aromatic aldehydes, ketones andbetals, diketones, as well as benzoin and its ethers in quadrupole mass spectrometrywere explored.
探讨了未取代和取代的芳香醇和酮、芳香二酮和安息香及其醚等在四极质谱中的特点和规律。
5)  quadrupole spectrometer
四极谱仪
6)  quadrupole mass spectrometer
四极质谱计
1.
Application of quadrupole mass spectrometer in vacuum leak detection;
四极质谱计在真空检漏中的应用
2.
3He analyses were performed by a quadrupole mass spectrometer (QMS).
在自行设计的全金属高真空热解吸系统上,以ELITESPE50型四极质谱计(QMS)为分析器,建立了金属氚化物中3He的热解吸和数据处理方法。
3.
The quadrupole mass spectrometer is an instrument for partial pressure measurement.
四极质谱计是一种分压力测量仪器,其线性上限一般为10-3Pa。
补充资料:四极质谱计
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性质:用四根平行极杆组成可变电场作为质量分析器的质谱计,两组相对极杆上施加极性相反的直流电压U和射频电压Vcosωt,在四极杆间形成可变电场。通过电场扫描,不同质荷比,m/z的离子顺序依次通过电场区到达接收器,获得质谱。四极质谱计属无磁式动态低分辨质谱仪器,分辨率在1000~2000范围。

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