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Multipurpose large-capacity linear ion trap and integrated electrode processing method

A linear ion trap and large-capacity technology, applied in the field of mass spectrometry, can solve problems such as complex processing and assembly, single function, and influence on ion flow rate, and achieve the effect of simplified structure

Inactive Publication Date: 2007-09-19
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Problems solved by technology

single ion trap MS n The function is relatively single, and the operation is complicated or even unable to complete the analysis task when carrying out applications such as complex samples and multi-sample ion / ion reactions
The combined ion trap can be used to carry out multi-stage series analysis of complex samples and multiple samples by using different combinations, but its structure is complex, the ion flux rate is also affected, and the processing and assembly are relatively complicated

Method used

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  • Multipurpose large-capacity linear ion trap and integrated electrode processing method
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  • Multipurpose large-capacity linear ion trap and integrated electrode processing method

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Embodiment Construction

[0031] The application will be described in further detail below in conjunction with the accompanying drawings.

[0032] This application proposes a multi-purpose large-capacity linear ion trap.

[0033] Figure 1 shows a multi-purpose high-capacity linear ion trap whose RF electrode set consists of two parts. DC, AC and RF voltages are respectively connected to the pole and end electrodes for trapping and analyzing ions. The x electrodes 1, 2 and y electrodes 3, 4 are placed parallel to the z axis, and the RF electrode group is divided into two parts along the z direction, and placed at intervals of 90 degrees in the clockwise direction of 1-3-2-4 in the xy plane, x The electrode pair and the y electrode pair define the ion trapping area of ​​the linear ion trap, and the sub-RF electrode group I and the sub-RF electrode group II correspond to the ion trapping sub-region I and sub-region II respectively. Slits 7 and 8 are provided on the x-electrode pairs of the two sub-RF ele...

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Abstract

The invention relates to a large capacity linear ion well which can be applied on various analysis aims and an electrode processing method which realizes integration of high accuracy and precision processing and installing. The linear ion well includes an ion capture chamber, RF electrode, and DC electrode, wherein, RF electrode is comprised by plural parts thereby dividing the ion capture chamber into plural sub-regions, thus, plural mass spectrometry procedures can be realized. The RF electrode of the ion well can be made in an integration processing manner of processing nonmetallic substrate first and then coating a metallic membrane on the surface thereof, at last, removing the metallic membrane of insulation region according to the requirement of the sub-electrodes. The multipurpose large capacity linear ion well provides an implementation scheme having characters of high applicability, various uses, low cost, easy processing and installation for the development of ion well quality analyzer and mass spectrograph.

Description

technical field [0001] The invention relates to the technical field of mass spectrometry, in particular to a large-capacity linear ion trap and its integrated electrode processing method, in particular to a large-capacity linear ion trap that can be used for various analysis purposes and a high-capacity linear ion trap that is easy to implement. An integrated electrode processing method for accurate and high-precision processing and assembly. Background technique [0002] The quadrupole ion trap is a special device that can be used as an ion storage device to confine gaseous ions in the quadrupole field area in the ion trap for a certain period of time, and can also be used as a mass analyzer for mass spectrometers. Mass spectrometry with a considerable mass range and variable mass resolution. The quadrupole electrostatic field in the ion trap is generated by connecting RF radio frequency voltage, DC direct current voltage or a combination of the two signals to each pole of...

Claims

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Application Information

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IPC IPC(8): H01J49/02H01J49/10H01J49/42H01J9/02
CPCH01J49/423
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