An ultrasonic atomization ionization device

Abstract

The invention discloses an ultrasonic atomization ionization apparatus. The ultrasonic atomization ionization apparatus comprises an atomization cavity, a sample cup, an atomization sheet, a capillary tube, a heating apparatus and a carrier gas conveying pipe, wherein a liquid medium is stored in the atomization cavity; the sample cup is put in the liquid medium in the atomization cavity; a to-be-atomized ionization liquid sample is stored in the sample cup; the heating apparatus is used for heating the to-be-atomized ionization liquid sample in the sample cup; the ultrasonic vibration generated by the atomization sheet propagates to the to-be-atomized ionization liquid sample in the sample cup through the liquid medium; a mist gathering outlet is formed in the atomization cavity; the capillary tube passes through the atomization cavity and extends out of the mist gathering outlet; an electrified solution passes through the interior of the capillary tube, and electrified mist spray is formed outside the mist gathering outlet; the carrier gas conveyed by the carrier gas conveying pipe wafts the atomized liquid sample to enable the atomized liquid sample to be sprayed out of the mist gathering outlet and to be jointed with the electrified mist spray conveyed from the capillary tube to finally form sample ions. By adoption of the ultrasonic atomization ionization apparatus, the problem of low ionization efficiency of the liquid samples difficult to volatilize is solved, and the sample treating process is simplified.

Description

technical field [0001] The invention relates to an ultrasonic atomization ionization device. Background technique [0002] Mass spectrometer is an instrument for detecting the composition of substances, which can be used in air composition detection, water quality detection, solid sample detection, equipment leak detection, dangerous goods detection and other fields. The use of mass spectrometers to detect sample components first requires the conversion of samples into ion forms, and different ionization methods are generally used for samples of different forms. [0003] For the detection of liquid samples, the volatility of the liquid is often used to convert it into a gas form, and then the gas is ionized by other means. The commonly used liquid sample ionization method is to realize the vaporization of the liquid sample through capillary or pulse valve injection, and use ultraviolet light irradiation, electron beam bombardment and other methods to ionize the sample molec...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the deficiencies of the prior art, provide an ultrasonic atomization ionization device, and solve the problems of poor ionization effect and low efficiency of difficult-to-volatile liquid samples

Images