Title:
PULSE ELECTROSPRAY ION SOURCE, PULSE SAMPLE INJECTION METHOD, AND MASS SPECTRUM DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/143078
Kind Code:
A1
Abstract:
A pulse electrospray ion source, a pulse sample injection method, and a mass spectrum detection system. The ion source comprises a sample supply device, a sample injection capillary tube, and an electrode; a sample solution provided by the sample supply device enters from a sample injection end of the sample injection capillary tube and is output from an output end of the sample injection capillary tube; the electrode electrifies the sample solution to provide voltage required for forming electrospray. The ion source also comprises a moving device coupled to the sample supply device or the sample injection capillary tube. During sample injection, the sample supply device and the sample injection capillary tube intermittently move relative to each other according to a set pulse time sequence, so that a sample in the sample supply device is intermittently in contact with the sample injection end of the sample injection capillary tube, thereby realizing pulse-type electrospray sample injection. The present invention realizes synchronous execution of pulse sample injection and ionization, and improves the sample utilization rate.
Inventors:
YU QUAN (CN)
ZHANG QIAN (CN)
WANG XIAOHAO (CN)
ZHANG QIAN (CN)
WANG XIAOHAO (CN)
Application Number:
PCT/CN2020/102134
Publication Date:
July 22, 2021
Filing Date:
July 15, 2020
Export Citation:
Assignee:
TSINGHUA SHENZHEN INT GRADUATE SCHOOL (CN)
International Classes:
H01J49/16; H01J49/26
Domestic Patent References:
| WO2016059432A1 | 2016-04-21 |
Foreign References:
| CN111243936A | 2020-06-05 | |||
| CN105789020A | 2016-07-20 | |||
| CN103048378A | 2013-04-17 | |||
| CN110021516A | 2019-07-16 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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