Unlock instant, AI-driven research and patent intelligence for your innovation.

Proton transfer reaction mass spectrum ion transmission device

An ion transmission device and proton transfer reaction technology, applied in the field of ion transmission, can solve problems such as enhancement, harmful field effects, and ion discrimination effects

Active Publication Date: 2014-12-03
KUSN HEXIN MASS PECTRUM TECH +2
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the ion transmission devices in most mass spectrometers use electrostatic lenses, multistage rod guides (US Patent 5,179,278), ion funnels (US Patent 6,107,628), ion guides (US Patent 6,417,511) or combinations thereof, but still There are problems such as low ion transmission efficiency, ion discrimination effect, harmful field effect, etc., which are not conducive to the improvement of the sensitivity and resolution of the subsequent mass analyzer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Proton transfer reaction mass spectrum ion transmission device
  • Proton transfer reaction mass spectrum ion transmission device
  • Proton transfer reaction mass spectrum ion transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0037] like Figures 1 to 13As shown, a proton transfer reaction mass spectrometry ion transmission device includes a multi-segment multi-pole structure 100, a focusing electrode structure 200, a grid electrode structure 300, and a deflection electrode structure 400 connected in sequence from left to right, wherein the multi-segment multi-pole The outer end of the structure 100 is close to the tapered hole where ions and carrier gas enter, the outer end of the deflection electrode structure 400 is close to the mass analyzer, and the multi-segment multipole structure 100 is connected with a radio frequency power supply with adjustable voltage, the focusing electrode structure 200, the grid Both the grid electrode structure 300 and the deflection electrode structure 400 are connected with a DC stabili...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a proton transfer reaction mass spectrum ion transmission device. The device comprises a multi-section multi-electrode rod structure, a focusing electrode structure, a grid mesh electrode structure and a deflection electrode structure which are sequentially connected from left to right. The outer end of the multi-section multi-electrode rod structure is close to a conical hole allowing ions and carrier gas to enter, the outer end of the deflection electrode structure is close to a mass analyzer, the multi-section multi-electrode rod structure is connected with a voltage-adjustable radio-frequency power source, the focusing electrode structure, the grid mesh electrode structure and deflection electrode structure are all connected with voltage-adjustable direct-current voltage-stabilized power sources. The device can adjust the moving speed, the cross section size and the moving direction of ion beams, enables the ions to be focused on an inlet of the mass analyzer and improves the sensitivity and the resolution ratio of the mass analyzer.

Description

technical field [0001] The invention relates to the technical field of ion transmission, in particular to a proton transfer reaction mass spectrometer ion transmission device. Background technique [0002] Volatile organic compounds (VOCs) are ubiquitous in indoor and outdoor air, mainly from petrochemical production, sewage and garbage treatment plants, gasoline engine exhaust, and domestic emissions, including oxygen-containing hydrocarbons, halogen-containing hydrocarbons, nitrogen-containing hydrocarbons, Complex components such as sulfur hydrocarbons and low-boiling polycyclic aromatic hydrocarbons, many of which are carcinogenic, teratogenic, and mutagenic. In addition, VOCs in the air can also participate in photochemical reactions, which can lead to severe changes in the climate, seriously pollute the atmosphere and threaten human health. [0003] The means of measuring VOCs at home and abroad include gas chromatography-mass spectrometry, proton transfer reaction ma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/42H01J49/06
Inventor 程平肖文伟彭真伍小梅黄正旭周振
Owner KUSN HEXIN MASS PECTRUM TECH