1) quadrupole mass spectrometer array
阵列式四极质谱
1.
This paper introduced the two kinds of quadrupole mass spectrometer which were miniature quadrupole mass spectrometer array used in space field and micro-chamber quadrupole mass spectrometer fabricated by Southeast University.
这两种四极质谱计包括已经用于航天领域的阵列式四极质谱计和东南大学研制的微腔体四极质谱计。
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) mass spectrograph array
阵列质谱仪
6) HPLC/DAD/MS
液相色谱/光电二极管阵列检测器/质谱
1.
OBJECTIVE To identify the cis- and trans-2,3,5,4′-tetrahydroxystilbene -2-O-β-D-glucoside(THSG)coexisting in Radix Polygoni multiflori and determine the contents by High Performance Liquid Chromatography/Diode Array Detector /Mass Spectrometry (HPLC/DAD/MS).
目的采用液相色谱/光电二极管阵列检测器/质谱(HPLC/DAD/MS)联用技术鉴定何首乌中同时存在顺式和反式-二苯乙烯苷,并分别测定其含量,同时考察二苯乙烯苷对光的稳定性。
补充资料：四极质谱计
分子式：
CAS号：
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。
CAS号：
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。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条