Mass spectrometry system and method based on automatic sampling

Abstract

The invention provides a mass spectrometry system and method based on automatic sampling. The mass spectrometry system based on automatic sampling includes a support, an ion source and a mass spectrometer. The first guide rail arranged on the support includes a connected first part and an inclined direction In the second part below, the second guide rail is arranged on the bracket, and the first carrier is arranged on the second guide rail; the slider is arranged on the first guide rail, and is connected with the rotating shaft, and the rotating shaft is rotatably arranged on the first bearing On the part, the central axis of the sliding part and the central axis of the rotating shaft are arranged in parallel and not collinear; the first translation device is fixed on the bracket, and is used to drive the first carrier to move forward and backward; the second translation device is set On the bracket, it is used to drive the dilution unit to move forward and reverse; the second carrier is fixedly connected to the rotation shaft, and the third translation device is arranged on the second carrier, and is used to drive the ion source to move forward and reverse. The invention has the advantages of automation and the like.

Description

technical field [0001] The invention relates to mass spectrometry analysis, in particular to a mass spectrometry analysis system and method based on automatic sampling. Background technique [0002] In public security anti-drug departments, drug testing centers, third-party testing centers and various testing institutions, when it is necessary to perform mass spectrometry testing on solid powder samples in the laboratory, the samples must be dissolved and diluted according to application requirements before mass spectrometry testing can be performed. This detection method has disadvantages, such as: [0003] 1. In view of the fact that the mass spectrometer in the laboratory today has certain requirements for the concentration of the detection sample, the detection of high-concentration samples is likely to cause contamination of the mass spectrometer, while low-concentration samples are not easy to detect. [0004] 2. Most of the sample pretreatment in the laboratory is ma...

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Problems solved by technology

[0005] The first method is to calculate the dilution concentration before the sample pretreatment and then weigh the ratio, but there is a risk of calculation error, and it is time-consuming, and requires high professional quality of the operator;

[0006] The second method is to perform multi-stage dilution of quantitative liquids, dip the samples in multiple quantitative liquids and dilute them sequentially, reduce the concentration by a certain ratio, and then perform mass spectrometry detection in sequence from low to high concentrations until the detection results are obtained. This method is faster However, the sequence of sampling is prone to errors, which poses risks to the application of the mass spectrometer itself, and has certain requirements for the professional quality of the operators.

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