电离解

Noxae ;; Bacteria ;; Pictorial Works ;; Dermatoglyphics ;; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

病原；；细菌；；图谱；；皮纹学；；光谱法，质量，基质辅助激光解吸电离

In order to improve desorption/ionization effects, the purification methods for DNA samples are established.

为提高基体对样品解吸/电离效率，对纯化DNA样品的方法进行了讨论。

After alkaline hydrolysis, the hair sample (10 mg) was extracted with pentane, and analyzed by liquid chromatography-tandem mass spectrometry with electrospray ionization and multiple reaction monitoring.

将10 mg样品碱水解后加入戊烷提取，然后进行LC-MS/MS分析，采用正离子电喷雾电离、多反应监测模式测定，方法的最低定量限为25 pg/mg。

All the atomic and molecular systems are subject to photoionization and photodissociation.

所有的原子和分子系统都受光致电离和光致离解的影响。

The method of photoionization mass spectroscopy using synchrotron radiation is introduced. The fundamental photodissociation mechanism is given.

介绍了真空紫外同步辐射光电离质谱研究的方法，以及各种基本的光解离反应的机理。

Photoionization and photodissociation are the two main product channels following the interaction of the molecules with laser.

光电离和光解离是分子与激光作用后两种主要的反应途径。

Photoionization process of NaI molecule always occurs accompanying dissociation process and these two processes are competing.

在NaI分子的光电离过程中伴随有解离过程，并且这两个过程是相互竞争的。

In fact, the behavior of alkyl bromides with a long C-C chain, which belong to Cs symmetry, is more similar to that of general polyatomic molecules.

这里，我们分别采用共振增强多光子电离方法、离子速度影象技术从不同的侧面研究了具有C-C长链和Cs对称性的溴代烷烃分子的光解动力学问题。

This dissertation is dedicated to investigate the pyrolysis of the fuel-bonded nitrogen model compounds,including five-membered ring nitrogen model compound pyrrole and the substituted six-membered ring nitrogen compound 4-methyl pyridine,with vacuum ultraviolet single-photon ionization combined with molecular beam mass spectrometry technique.

本论文利用同步辐射真空紫外单光子电离、分子束取样和反射式飞行时间质谱相结合的技术研究了含氮杂环模型化合物的热解，包括五元环含氮体系、六元环含氮体系和替代的六元环含氮体系(4-甲基吡啶)。

These results suggest that desorption of PEO segments and their entanglement are hindered due to the formation of hydrogen-bonding complexation between the undissociated carboxylic groups and the PEO chains.

这些结果表明由于未电离的羧酸根基团和PEO链形成了氢键，阻碍了压缩过程中PEO链节的解吸附和链节间的缠结。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。