查询词典 mass spectrometer

The multiphoton ionization mechanisms of hydrogen-bonded cluster systems: pyrimidine-〓 and pyridazine-〓 were studied using TOF mass spectrometer at 355 and 532nm laser.

本文利用355，532nm波长的激光和TOF质谱首次研究了嘧啶-甲醇（〓，pyrimidine-〓）以及哒嗪-甲醇（〓pyridazine-〓）氢键团簇体系的多光子电离机理。

The chemical reaction of gas discharge plasma in a 2kW TE CO2 laser has been studied with a quadripole mass spectrometer.

用四极质谱定量分析方法观察了2kW TE CO_2激光器放电过程等离子化学现象。

Methods: Serum samples were collected from 146 cancer patients who were treated in our studying group from April to December, 2004. Serum samples were added to a weak cation exchange 2 (WCX2) protein chip and analysed on the Protein Biology System surface enhanced laser desorption ionisation time of flight mass spectrometer (SELDI-TOF-MS) manufactured by Ciphergen Biosystems Inc.

人类肿瘤蛋白质组的研究是目前恶性肿瘤研究的重要方法之一，利用蛋白质飞行质谱技术(SELDI-TOF-MS)检测某种肿瘤蛋白质组的质谱变化，用于肿瘤的早期发现，已有不少报道[1]。

The article summarizes some progresses in Re-Os isotope sample digestion, separation, purification and mass spectrometer measurement, and reviews five different digestion techniques, including acid digestion in reducing media, alkali fusion, Nickel sulfide fire assay, Carius tube dissolution and high-pressure ashier digestion.

简要介绍和评价了酸溶法、碱熔法、NiS火试金法、Carius管溶样法以及HPAS高温高压釜溶样法等常用的ReOs同位素样品分离方法。

Samples were prepared by protein precipitation with acetonitrile and defatting with n-hexane. The analytes were detected with API 4000 triple quadrupole tandem mass spectrometer equipped with ESI source in the positive ion mode.

猪肉样品中加入乙腈沉淀蛋白，经正己烷脱脂后，采用液相色谱-三重四极杆串联质谱检测，使用电喷雾离子化源，在正离子条件下以多反应监测方式进行扫描。

A nanoelectrospray interface was set up for hyphenating with orthogonal injection time-of-flight mass spectrometer.

研制了纳喷雾离子化技术与正交飞行时间质谱的联用接口，在电场力的作用下，样品流速约为30nL/min，40nmol/L细胞色素c溶液的单张图谱样品消耗量为0。

In this paper,the basic features of quartz and the theoretic basis for quartz to be taken as a tracer for material source are summarized,and the material source tracing methods to use scanning electron microscope,mass spectrometer,electron spin resonance and cathode luminescence and the feasibility of these methods are introduced in detail.

综述了石英的性质和它作为有效指示剂来示踪物源的理论基础，进而详细介绍了使用扫描电镜、质谱、电子自旋共振和阴极发光等仪器对石英矿物的表面微结构、氧同位素比值、形成年龄和阴极发光颜色等特征进行研究来追踪物源的方法以及这些方法的可行性。

NMR with cryoprobe, hybrid Fourier transform tandem mass spectrometer and various hyphenated techniqes will be the key techniques for studying, metabonomics.

各种代谢组学分析技术各有优缺点，配有低温探头的核磁共振、混合型串联傅里叶变换质谱以及多种联用技术将成为代谢组学研究的关键技术。

Gas ChromatographyIon Trap Mass Spectrometer was widely used in the analysis of pharmaceuticals, environment, pesticides, foodstuff, organic chemicals, drugs, medicine and biology, etc.

气相色谱离子阱质谱联用仪广泛地应用于药物分析、环境分析、农药检测和食品分析、有机化学品分析、毒品分析以及医学和生物分析等领域。

Ionization-dissociation of methyl bromide in intense laser field was studied using home-built reflection time-of-flight mass spectrometer.

利用自制的反射式飞行时间质谱仪研究了多原子分子CH3Br在强激光场中的电离解离。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。