His main tool is a device called a secondary-ion mass spectrometer.
他的主要工具是一种叫做二次离子质谱仪的装置。
A novel system used to calibrate partial pressure mass spectrometer was developed.
分压强质谱计校准装置用于质谱计的校准。
The chromatograph-mass spectrometer has been made, and we can start printing at any time.
套色版已经制作完成了，随时都可以开始印刷。
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。
Quadrupole mass spectrometer can be used in measuring pressure of dividing and analysis composition of material.
四极质谱计在真空技术中可用来测量分压强，从事物质成分的分析。
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。
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。
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。
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 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。
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冲增强射频磁控溅射ptfe靶等离子体气氛的影响规律。
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 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。
Methods: A distillation method was used to extract the volatile oil and a gas-mass spectrometer was used to analyze the chemical composition.
方法：用水蒸汽蒸馏法提取紫色姜挥发油，并通过气相-质谱联用仪分析研究。
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。
This article briefly describes the thoughts, key points and test result of a low noise pulse amplifier used in Laser Isotope Mass Spectrometer.
本文简要介绍了用于激光共振电离质谱实验的低噪声脉冲放大器的设计思路、实现的要点及其测试结果。
The working principle, configuration and performance of an autosampler of 13 C mass spectrometer used for expiration gas analysis are described.
介绍了自行研制的13C质谱仪自动进样器的工作原理、结构和性能。
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。
Method The fatty oil from Carum carvi L was extracted by ligarine petrum and analyzed by capillary gas chromatograph mass spectrometer(GC-MS) method.
方法用石油醚提取脂肪油并甲酯化，采用毛细管气相色谱-质谱联用技术对其进行分析鉴定。
Gas Chromatograph-Mass Spectrometer (GC-MS) with an auto-sampler, split/splitless inlet, programmable GC oven, and capable of selective ion monitoring.
带自动进样器的气相色谱-质谱联用仪（GC-MS），分流/不分流进样，可编程的柱箱和可以进行离子选择监测。
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。
A homemade miniature aerosol mass spectrometer was reported, which can rapidly monitor gas composition and aerosol size distribution in vehicle exhaust.
我们研制了一台能够在线监测气溶胶粒径分布和气体组成成分的气溶胶在线质谱仪。
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。
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 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。
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。
The behavior of different species during the temperature programmed surface reaction (TPSR) of methane over various catalysts is traced by an on line mass spectrometer.
利用在线质谱分析检测了在各种催化剂上甲烷的程序升温表面反应(TPSR)过程中不同物种的行为。
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。
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。
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。
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