spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer

a quadrupole mass spectrometer is used to measure the changes in impurities before and after the discharge.

用四极质谱计来测量放电前后杂质的变化。

the mass spectrometer may be used in a trace gas leak detector.

可以在示蹤气体泄漏检测器中使用所述质谱仪。

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。

in this paper a magnetic sector mass spectrometer for experiments is described.

本文叙述了一台实验用的扇形磁质谱计。

quadrupole mass spectrometer was used to analyze the plasma environment of rf magnetron sputtering ptfe target with pulsed bias.

采用四极质谱仪测量了试验参数对高压脉沖增强射频磁控溅射ptfe靶等离子体气氛的影响规律。

however these more complex samples can rapidly degrade the gas chromatograph (gc) and mass spectrometer (ms) performance.

然而，这些更复杂的样品会迅速降低气相色谱（gc）和质谱仪（ms）的性能。

each reading by the mass spectrometer creates a kind of chemical 「pixel」.

质谱计每次读取的数据最后生成一种所谓化学”像素”。

dr. lipkin and his colleagues can then fish out these matching segments and shoot them through a mass spectrometer to determine their mass.

利普金博士和他的研究员们随后就开始钓出这些片段并通过一台分光仪标记测定物。

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 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 mass spectrometer technology has the ability to detect them in the mean time.

质谱检测技术具有同时检测环境中这两种微量成分而不相互干扰的优点。

we study the dissociation channel and mechanism of anisole in the experiment using the time of flight mass spectrometer with the interaction of laser.

我们的实验是利用飞行时间质谱仪在激光作用下研究苯甲醚的多光子电离质谱能够得到苯甲醚分子的解离通道及机理。

a quadrupole mass spectrometer used during launch vehicle testing and launching is given, and the trend of spacecraft leak monitoring technique and equipment is raised.

文中给出了四极质谱计在火箭试验及发射时的应用实例，并提出航天器泄漏监测技术的发展趋势和监测设备的方向。

graham cooks, a member of the purdue team, has already built a functioning portable desi device with a built-in miniature mass spectrometer that is no bigger than a doctor’s case.

普渡大学小组成员grahamcooks已经制作了一个能够运作的便携式解吸附电喷雾离子化装置，其内置了小型的质谱计，体积不比医药箱大。

in this paper, an ion trap mass spectrometer which combines the technology of digital ion trap with the rectilinear ion trap(rit) was studied.

将数字化离子阱技术和矩形离子阱（rit）技术相结合，建立了数字化矩形离子阱质谱仪。

resonance enhanced multiphoton ionization (rempi) and time of flight (tof) mass spectrometer technique is a high-resolution and high-sensitivity spectrum-research method.

共振增强多光子电离及飞行时间质谱技术是一种具有高分辨率、高灵敏度的光谱研究技术。