Multifunctional multi-channel ion source for mass spectrometer and mass spectrum analysis method for trace components in original sample

Abstract

The invention discloses a multifunctional multi-channel ion source for a mass spectrometer and a mass spectrum analysis method for trace components in an original sample. The ion source comprises a sample ionization area consisting of a high-voltage power supply, a plurality of nozzles and a sample disc, and at least two channels, wherein sample flow injected from the second channel collides with reagent ions injected from the first channel to form sample ions, or the reagent ions injected from the first channel collide with a sample in the sample disc to ionize the sample, and the sample is introduced into an inlet capillary of the mass spectrometer for mass spectrum analysis. The multi-channel ion source can be connected with common mass spectrometers such as LCQ, LTQ and TSQ, so that the functions of the common mass spectrometers are upgraded and powerful to rapidly and sensitively measure the gas, liquid, solid and colloid samples in the mass spectrum analysis method, and the multifunctional multi-channel ion source can be applied to in-situ, real-time, online and nondestructive analysis in the industrial or environmental process.

Description

[0001] The present invention is a divisional application. The original application date was December 28, 2006, the application number was 200610170311.8, and the title of the invention was "multifunctional multi-channel ion source for mass spectrometer". technical field [0002] The invention relates to the field of analytical chemistry, in particular to an ion source of a mass spectrometer and its application. Background technique [0003] Mass spectrometry is a specialized science and technology widely used in various disciplines to identify compounds by preparing, separating, and detecting gas phase ions. Mass spectrometer is the basis of mass spectrometry research and application. A mass spectrometer generally includes a sample introduction system, an ion source, an ion optical system, a mass analyzer, a detector, a data acquisition and control system, a vacuum system, and the like. Professor R.Graham Cooks, an internationally renowned mass spectrometer master, believe...

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Problems solved by technology

However, the sensitivity of this method is not high, it is difficult to directly ana

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