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Step electrode quadrangular frustum pyramid four-stage quality analyzer

A mass analyzer and quadrangular trapezoidal technology, which is applied in the direction of material analysis, analysis materials, and instruments by electromagnetic means, can solve the problems of high cost and increased difficulty in production and processing of quadrupole mass spectrometers.

Inactive Publication Date: 2008-02-20
NINGBO UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the production and processing difficulty of the quadrupole mass spectrometer is greatly increased, and its cost is also very expensive.

Method used

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  • Step electrode quadrangular frustum pyramid four-stage quality analyzer
  • Step electrode quadrangular frustum pyramid four-stage quality analyzer
  • Step electrode quadrangular frustum pyramid four-stage quality analyzer

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Embodiment Construction

[0027] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0028] Referring to FIG. 2 , the composition of the quadrangular pyramid-shaped four-stage mass analyzer with stepped electrodes includes four electrodes 21 , 22 , 23 and 24 , and the four electrodes enclose a space area 25 . Simultaneously in conjunction with Fig. 3, the shape of described electrode is trapezoidal, has stepped convex rib on the trapezoidal electrode, promptly each electrode is made up of two-layer ladder 31 and 32, and the height of step is 33 and 34, and certainly convex rib The number can also be increased. Two by two of the four electrodes are adjacent to one hypotenuse of the trapezoid to form a quadrangular truss-shaped space area. The shape of each layer of stepped ribs on the electrode is trapezoidal. The geometric shapes of the four electrodes are exactly the same, and the cross-section of the four electrodes enclosing a space area is a...

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Abstract

The utility model relates to a quadrangular frustum shaped four-stage mass analyzer with stepped electrodes, comprising four electrodes. The four electrodes can form a space zone, the electrode shape is trapezoid, and the stepped protruding ridge is arranged on the trapezoid electrodes. Two of the four electrodes can form a quadrangular frustum space zone along a bevel edge of the trapezoid respectively. The utility model has the advantages of simple structure and low production difficulty, low production and service costs of the quadrapole spectrometer and wide application.

Description

(1) Technical field [0001] The invention relates to a detection instrument, in particular to an analysis instrument for sorting or detecting ions according to characteristics such as the mass-to-charge ratio of ions. (2) Background technology [0002] A mass spectrometer is a scientific instrument that can be used to accurately analyze various chemical components and their contents in solid, liquid and gas samples. Among mass spectrometers, quadrupole mass spectrometers are currently one of the most widely used mass spectrometers. It has the characteristics of simple structure, small volume, convenient use and operation. [0003] A traditional quadrupole mass spectrometer is composed of four hyperbolic electrodes or cylindrical electrodes. Figure 1 is a schematic diagram of the principle of a traditional quadrupole mass spectrometer, in which electrodes 11, 12, 13 and 14 are fixed together in a certain way. composed of a quadrupole electrode system. In actual use, two opp...

Claims

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Application Information

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IPC IPC(8): G01N27/62H01J49/26
Inventor 王其冬水新国丁传凡
Owner NINGBO UNIV
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