质谱仪

A home-made miniature orthogonal acceleration time of flight mass spectrometer with vacuum ultraviolet photoionization source has been designed and tested.

介绍了自行研制的光电离／微型正交加速飞行时间质谱仪的设计原理和性能。

The combination of SEM and SIMS （secondary ion mass spectrometer） is one of the accepted working lines to analyze isotopic compositions of particles. But it required fast searching and accurate locating the interested particles on the sample planchet in SEM and then re-locating the particles and analyzing their isotopic composition in SIMS.

扫描电镜和二次离子质谱仪的联用是公认的微粒同位素分析技术路线之一，它需要用扫描电镜对样品垫上感兴趣的微粒进行快速查找和准确定位，最终用SIMS对同一微粒进行再定位和同位素分析。

The ionization and dissociation of polyatomic molecules in femtosecond laserfield were studied in the article.

本论文的主要内容是利用飞行时间质谱仪来探测飞秒激光强场下气体小分子的电离解离。

What it saw were volcanic rocks, which spectrometers indicated were composed of olivine and pyroxene, minerals broken down by even the barest amount of liquid water.

它看到的是火山岩，质谱仪显示组成是橄榄石和辉石，而这些矿物只要碰上一丁点儿液态水就会瓦解。

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。

Mass spectra of proteins such as ribonuclease A and lysozyme were obtained with substantially enhanced abundant peaks of low charge states.

采用核糖核酸A、溶菌酶等样品和商品化的线性离子阱质谱仪对该电离源进行了表征。

The previously proposed composite internal structures for HOC is thus fully supported by current sequencing data while the fucosylated and/or sialylated terminal epitopes identified is consistent with the non secretor status of the donor.

现今利用质谱仪的定序分析可以支持前人所预测人类子宫囊醣蛋白上的O-glycan结构；且利用已建立的特殊断片模式只侦测到Lewisa/x 的断片可以得知样品来源是来自non-secretor 的提供者。

Based on the data from S0177 leg core, which were collected in SouthChina Sea by German scientific investigation ship – SONNE, our study canbe divided into three parts. The first part is the grain size analysisand data-processing. Then we decided the 14C isotopic age. We summarizedcore characteristic through observing the sample with scan electronicmicroscope.

利用德国"太阳号"在南海的 SO177 航次部分岩芯资料，主要进行了三方面的工作：粒度测试及数据处理、挑选有孔虫化石和加速质谱仪 14C 测年以及利用扫描电子显微镜观察和总结岩芯的微结构特征。

Those points were digested, analyzed with MALDI-TOF-TOF-MSmass spectrograph and searched in protein database.

对差异蛋白质点进行胶内消化、MALDI-TOF-TOF-MS质谱仪鉴定和数据库搜索确定差异蛋白质。

Precision values of atomic masses are measured in a device called a mass spectroscope.

原子质量的精确值是用一种称为质谱仪的装置来测量的。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失