A stepped high-field asymmetric waveform ion transfer tube
A waveform ion migration and high-field asymmetric technology, which is applied to parts, instruments, and measuring devices of particle separator tubes, can solve unfavorable miniaturization and industrialization promotion, reduce the concentration of target compounds, and reduce detection sensitivity, etc. problems, to achieve high sensitivity and high recognition accuracy, easy to mass production, and improve the effect of recognition accuracy
Active Publication Date: 2019-04-30
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The previous flat-plate structure devices only realized the detection of ions of a single polarity (electrophilic or protophilic)
In order to increase the detection speed and reduce the analysis time, the patent 200810229883.8 proposed a parallel and series combined high-field asymmetric waveform ion transfer tube, by setting two or more ground electrode sleeves; but due to the Splitting the sample will reduce the concentration of the target compound, resulting in a decrease in detection sensitivity
In addition, the array structure often requires multiple high-field asymmetric RF voltages and DC compensation power supplies, which is not conducive to miniaturization and industrialization promotion
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] The schematic diagram of the arrayed high-field asymmetric waveform ion transfer tube of the present invention is as follows figure 1 shown.
[0030] A stepped high-field asymmetric waveform ion transfer tube, including an ionization area, an ion separation area 1, and an ion detection area sequentially arranged from left to right, a gas inlet is provided at the end of the ion source far away from the detection area, and the detection area is far away from the ionization area. One end of the ion source is provided with a gas outlet; the gas outlet and the gas inlet are respectively located on the left and right sides of the high-field asymmetric waveform ion transfer tube; the upper separation electrode 2, the flat lower separation electrode 3, the lower detection electrode 4 and the upper detection electrode 8 are Be fixed on the insulating right bracket 5 and the left bracket 7;
[0031] The ion separation region 1 includes an upper separation electrode 2 and a flat ...
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
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a novel ladder-like high-field asymmetric waveform ion transfer tube, comprising an ionization area, a separation area, a detection area, and the like, which are arranged in turn along the axial direction. The separation area is composed of a flat electrode and multiple counter electrodes which are parallel to the flat electrode but not coplanar with the flat electrode. Thedetection area is composed of N strip-shaped flat electrodes insulated from each other in the same plane and two or more detection electrode pairs. Each separation electrode pair includes at least one ground electrode and at least one high-voltage asymmetric field electrode. In each detection electrode pair, one electrode applies a positive bias voltage, and one electrode applies a negative biasvoltage. Two or more detection channels can be provided at the same time to realize simultaneous determination of two or more compounds, and thus, the detection period is shortened. A single high-field asymmetric radio frequency voltage and DC compensation power supply is used, and there is no need for multiple power supplies. The novel ladder-like high-field asymmetric waveform ion transfer tubeis simple in structure, small, and easy to process and promote in an industrialized manner.
Description
technical field [0001] The present invention relates to atmospheric pressure separation and analysis technology, specifically a design and manufacture technology for a novel stepped high-field asymmetric waveform ion transfer tube, including an ionization area, a separation area, a detection area, etc., which are arranged in sequence along the axial direction. The separation area is composed of a plate electrode and a plurality of counter electrodes parallel to the plate electrode but not coplanar; the detection area is composed of N strip-shaped plate electrodes insulated from each other in the same plane. It consists of two or more detection electrode pairs. At least one of each pair of separated electrodes is a ground electrode, and at least one electrode is a high-voltage asymmetric field electrode. Each pair of detection electrodes applies a positive bias voltage to one electrode and a negative bias voltage to one electrode. The present invention can provide two or more...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/26H01J49/02G01N27/62
CPCG01N27/624H01J49/02H01J49/26
Inventor 王卫国黄卫李海洋
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI