一种带有加热毛细管进样口的自制高分辨率正交注入飞行时间质谱仪。

A homemade high-resolution orthogonal-injection time-of-flight mass spectrometer with a heated capillary inlet.

作者信息

Guo Changjuan, Huang Zhengxu, Gao Wei, Nian Huiqing, Chen Huayong, Dong Junguo, Shen Guoying, Fu Jiamo, Zhou Zhen

机构信息

State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China.

出版信息

Rev Sci Instrum. 2008 Jan;79(1):013109. doi: 10.1063/1.2832334.

DOI:10.1063/1.2832334

PMID:18248024

Abstract

We describe a homemade high-resolution orthogonal-injection time-of-flight (O-TOF) mass spectrometer combing a heated capillary inlet. The O-TOF uses a heated capillary tube combined with a radio-frequency only quadrupole (rf-only quadrupole) as an interface to help the ion transmission from the atmospheric pressure to the low-pressure regions. The principle, configuration of the O-TOF, and the performance of the instrument are introduced in this paper. With electrospray ion source, the performances of the mass resolution, the sensitivity, the mass range, and the mass accuracy are described. We also include our results obtained by coupling atmospheric pressure matrix-assisted laser deporption ionization with this instrument.

摘要

我们描述了一种结合加热毛细管入口的自制高分辨率正交注入飞行时间（O-TOF）质谱仪。该O-TOF使用加热的毛细管与仅射频四极杆（仅射频四极）相结合作为接口，以帮助离子从大气压区域传输到低压区域。本文介绍了O-TOF的原理、配置及仪器性能。使用电喷雾离子源描述了质量分辨率、灵敏度、质量范围和质量准确度等性能。我们还纳入了通过将大气压基质辅助激光解吸电离与此仪器联用所获得的结果。