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Quadrupole type quality analytical device

A mass analysis device and quality technology, applied in the direction of trajectory stable spectrometer, mass spectrometer, dynamic spectrometer, etc., to achieve the effects of shortening the repetition period, improving time resolution, and improving data resolution

Active Publication Date: 2015-01-07
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In this way, the period of the scan margin for stable measurement, which is set outside the mass range required for mass spectrometry, is a useless period for substantial mass analysis, similarly to the adjustment time described above.

Method used

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Embodiment Construction

[0036] A quadrupole mass spectrometer as an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a configuration diagram of main parts of the quadrupole mass spectrometer of this embodiment. to what has been explained Image 6 The same structural elements are assigned the same reference signs. The quadrupole mass spectrometer of this embodiment is a device for introducing a gaseous sample into the ion source 1, and a gas chromatograph can be connected to the preceding stage of the mass spectrometer. In the case of a configuration for analyzing a liquid sample, an atmospheric pressure ion source such as an electrospray ion source is used as the ion source 1. 3. The detector 4 is arranged in a high-vacuum environment, as long as it is configured as a multi-stage differential exhaust system. In this case, a liquid chromatograph can be connected to the preceding stage of the mass spectrometer.

[0037] In the quadrupole mass spec...

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Abstract

In scanning measurement of repeatedly carrying out quality scanning on a whole prescribed quality scope, magnitude of voltage is not stable because of appearance of undershoot and the like when using voltage recovers from end voltage of scanning to beginning voltage of next scanning, thus an appropriate waiting time is needed. In the past, the waiting time is independent of an analysis condition and is set as a fixed value. Relatively, the invention relates to a quadrupole type quality analytical device, according to an appointed quality range, quality difference Delta M of scanning end quality and scanning beginning quality is calculated, and different adjusting time is set according to the quality difference. In the condition of small quality difference Delta M and short voltage stabilization time, short adjusting time is set. According to the invention, repetition period of the quality scanning is shortened, and time resolution is raised.

Description

[0001] This application is an application for an invention patent with an international application date of May 26, 2008 (the date of entering the Chinese national phase is November 26, 2010), a national application number of 200880129479.1, and an invention title of "quadrupole mass analysis device". Divisional application. technical field [0002] The present invention relates to a quadrupole mass spectrometer using a quadrupole mass filter as a mass analyzer for separating ions according to mass (strictly, according to m / z). Background technique [0003] As one of mass spectrometers, a quadrupole mass spectrometer using a quadrupole mass filter as a mass spectrometer for separating ions by mass is known. Image 6 It is a schematic configuration diagram of a general quadrupole mass spectrometer. [0004] The sample molecules are ionized in the ion source 1 , and the generated ions are collected (and sometimes accelerated) by the ion lens plasma transport optical system 2 a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/42
Inventor 向畑和男中野茂畅藤本穰
Owner SHIMADZU SEISAKUSHO CO LTD