Bipolar ion migration tube

An ion migration tube and migration tube technology, which are used in measuring devices, instruments, and material analysis by electromagnetic means, etc., can solve problems such as differences in mobility, inability to identify and distinguish, and inability to obtain comprehensive information on samples to be tested.

Inactive Publication Date: 2011-06-22
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional ion mobility spectrometry instruments mainly use single-polarity ion transfer tubes, which only realize the detection of single-polarity ions (positive ions or negative ions), and cannot obtain more comprehensive information about the samples to be tested.
For ...

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
  • Bipolar ion migration tube
  • Bipolar ion migration tube
  • Bipolar ion migration tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] figure 2. for 63 When Ni is used as the ionization source, the reagent ion peak spectrum of the bipolar ion transfer tube is used. Two reagent ion peaks can be seen in the figure, where the mobility is 2.54 cm 2 V -1 the s -1 The peak of the positive reagent ion peak, the main component is H + (H 2 O) n (n=1~4), the mobility is 2.65cm 2 V -1 the s -1 The peak is the negative reagent ion peak, the main component is O 2 - (H 2 O) n (n = 1 ~ 4).

[0045] image 3, Figure 4 gives Out of the bipolar transfer tube use 63 Ni ionization source detection C 2 HCl 3 and C 2 Cl 4 Spectra of the obtained positive and negative product ions (except 63 Ni formed with a mobility of 2.54 cm 2 V -1 the s -1 and 2.65cm 2 V -1 the s -1 Except for the reagent ion peak, the other peaks are the product ion peaks of the analytes). where C 2 HCl 3 Positive ion peaks with mobilities of 2.43 and 2.25 and negative ion peaks with mobilities of 3.00 and 2.33 were produ...

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 bipolar ion migration tube, which is characterized in that: a bipolar structure of the bipolar ion migration tube consists of an ion source, positive and negative ion extraction poles, a reaction region, an ion gate, a drift region, a grid, positive and negative ion reception poles and the like, which are distributed axially. Positive and negative product ions generated by ionizing an object to be detected by an ionization source are led in the reaction region respectively, fly to two poles of the migration tube in an electric field provided by a high-voltage power supply and are finally received by the positive and negative ion reception poles respectively for detection. The bipolar ion migration tube can reflect the information of the positive and negative product ions generated by ionizing the object to be detected by an ionization source simultaneously and provide more information on differences for the object to be detected at same peak positions in a single ion mode, thereby improving the fast recognition and the detectability of an ion migration spectrometry on the object to be detected.

Description

technical field [0001] The invention relates to the ion mobility spectrometry of an analytical instrument, in particular to the migration tube technology of the ion mobility spectrometer. The migration tube can simultaneously provide positive and negative product ion information generated by a sample to be tested and provide more sample information. Background technique [0002] Ion mobility spectrometry is a material analysis and detection technology developed since the early 1970s. The basic principle it adopts is that ions generated under atmospheric pressure conditions, under a specific electric field characteristic, when drifting from the same starting point and passing the same distance, different ions will take different times due to their different mobility, and measure this Substances can be qualitatively monitored in no time. Ion mobility spectrometry has the advantages of high detection sensitivity, fast detection speed, online rapid detection, and low detection ...

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
IPC IPC(8): H01J49/26G01N27/64
Inventor 李海洋陈创王卫国程沙沙
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap