The mass spectrometer may be used in a trace gas leak detector.
可以在示踪气体泄漏检测器中使用所述质谱仪。
The device is readily removed and installed at ambient pressure without venting the mass spectrometer.
该设备易于在环境压力下安装和拆除，而不用对质谱仪抽气。
One of the advantages of the mass spectrometer is that it can record spectra from small quantities of substance.
质谱计的优点之一是它能记录少量物质的质谱。
This pushes molecules off the sample surface as gaseous ions, which can be detected and identified by the mass spectrometer.
这就使得分子以气化离子的形式离开样品表面，从而被质谱仪检测到并完成鉴定。
The mass spectrometer includes an ion source to ionize trace gases, such as helium, a magnet to deflect the ions and a detector to detect the deflected ions.
质谱仪包括使诸如氦之类的示踪气体离子化的离子源、偏转这些离子的磁铁以及检测这些偏转离子的检测器。
They grow their bacteria on a stainless steel plate, and use a laser to vaporise their signalling molecules, feeding these into a mass spectrometer to catalogue the molecules present.
他们在一个不锈钢培养皿里培育细菌，然后用激光蒸发它们的信号分子，把这些分子导入到质谱分析仪中并记录他们的状态。
The fibres were replaced at regular intervals over the course of seven days and taken away for analysis by a device called a gas chromatograph-mass spectrometer.
在七天的实验里，每隔一定时间就要更换一次纤维，然后用一种叫做气相色谱质谱联用仪的装置提取以供分析。
The researchers used a focused beam of caesium ions to dislodge molecules of water from the inclusions and measured the amount with a mass spectrometer.
研究人员用聚焦的铯离子束将水分子自包裹体中打出并用质谱仪测量其数量。
Volunteers chewed garlic, along with a smorgasbord of other options, and exhaled into a mass spectrometer, which detected the molecules on their breath.
志愿者们把大蒜和许多其他食物一起咀嚼，然后对着质谱仪呼气，质谱仪能够检测出呼吸中所含的分子。
When and where a charged particle with given energy will enter or leave the magnetic field in a mass spectrometer, and how we use quantum mechanics to calculate them are interesting problems.
一个已知能量的带电粒子在质谱仪中于何时何地进入和离开磁场，如何用量子力学来计算是个很有意思的问题。
The principle and performance of a home-made miniature photoionization ion trap mass spectrometer was introduced.
介绍了自行研制的紫外光电离离子阱质谱仪的原理和性能。
The most important characteristic of a mass spectrometer leak detector is its sensitivity.
质谱探漏仪的灵敏度是仪器最重要的性能指标。
The character and structure of components in herbal material were distinguished by TIC of mass spectrometer. The method provides for identification and QC to herbal material.
质谱总离子流图充分反映中药材组分特性，并确定各峰组分的结构，为中药材鉴别及质量控制提供了一种很好的方法。
System stability (Ss) is one of the most important specifications of the Isotope mass spectrometer (IMS). It influences the quality of the data detected by the IMS directly.
同位素质谱仪的系统稳定性是衡量同位素质谱仪质量的重要指标之一，它直接影响检测数据的准确度与精确度。
Furthermore, the background correction during the oxygen isotope ratio measurement with MAT-CH5 mass spectrometer was chosen as an example.
而且以MAT - CH_5质谱计测量氧同位素比时的本底校正作为例子。
The helium mass spectrometer leak detecting technology for a large vacuum chamber with the complex construction is described. Some problems in operation are shown and analyzed.
叙述了复杂结构的大型真空容器氦质谱检漏应用技术，分析了其中存在的问题。
The methods of various openning-tube, specific opener, exhausting gases, and it is delivery to mass-spectrometer are briefly described in this paper.
本文叙述了各种开管方法、专用装置以及气体的引出和向质谱计管的输送。
The chemical composition of the volatile oil from Paederia scandens was analysed by gas chromatography mass spectrometer (GC/MS) technique.
利用气相色谱-质谱联用（GC／MS）技术对鸡屎藤挥发油化学成分进行分析研究。
The present paper has described the die made by chromium car - bide for forming mass spectrometer needle and double curved surface glass tube in surface analyzing instrument.
介绍了采用碳化铬硬质合金制作质谱计和表面分析仪器中的双曲面玻璃管的成形模具。
The analysis method USES a simplified version of a mass spectrometer, a tool that can be used to separate and identify molecules in compounds.
这种方法运用简化的质谱仪来分析样本。质谱仪可用于分离和识别化合物中的分子。
The experimental result shows, the resolution and sensitivity of REMPI and TOF mass spectrometer technique is higher that of laser induced fluorescence method (LIF).
实验表明，共振增强多光子电离加飞行时间技术研究原子、分子光谱其灵敏度与分辨率远高于常用的激光感生荧光方法。
An analyzing method is introduced for accurate measurement of deuterium abundance in the hydrogen-deuterium system by low resolution MAT253 mass spectrometer.
介绍了用低分辨MAT253质谱计准确测量氢-氘体系中氘丰度的分析技术。
To improve the performance of a mass spectrometer, a novel method is proposed to construct an ion trap array mass spectrometer.
为了提高质谱仪的性能，提出了一种全新的构建阵列离子阱质谱仪的方法。
It is necessary to solve openning-tube sampling problem for the mass-spectrometer analysis of residual gases in sealed vacuum devices.
密封真空器件内残气的质谱分析，必须解决开管取样技术问题。
The generality is high. In principle, it can be used to combine with the quadrupole mass spectrometer made at home and abroad, and as general microcomputer itself.
该系统的通用性强，性能价格比高，原则上可与各种国内外生产的四极质谱计联用，也可以脱机作为普通微机用。
This paper report the design parameters, construction and specificity of a small magnetic mass spectrometer with an EI ion source, a sector magnetic analyser and a Faraday cup ion detector.
本文报道一种由电子轰击型离子源、扇形磁分析器与法拉第筒式离子检测器组成的小型质谱计，介绍其设计参数、结构与性能。
After each extraction, we purified the resulting gas and passed the xenon into hohenberg 's mass spectrometer, which indicated the number of atoms of each isotope present.
每一次萃取后，我们把得到的气体纯化，再将氙通入霍恩·柏格的质谱仪，测量出其中所含各种同位素的原子数量。
It shows that the result obtained by the dynamic method of mass spectrometer is uniform with the datum given by many references.
结果表明质谱计动态法所得结果与许多基本文献提供的数据是一致的。
It shows that the result obtained by the dynamic method of mass spectrometer is uniform with the datum given by many references.
结果表明质谱计动态法所得结果与许多基本文献提供的数据是一致的。
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