Development and Performance Test of Dielectric Barrier Discharge Ionization Source with Rapid Evaporation and Self-aspiration Sampling
10.19756/j.issn.0253-3820.241468
- VernacularTitle:快速蒸发-自吸进样介质阻挡放电电离源研制及性能测试
- Author:
Shuo ZHANG
1
;
Xin-Xin LU
;
Yu-Lin CHEN
;
Xu-Jie DENG
;
Bo-Wen WANG
;
Xiao-Xu LI
Author Information
1. 苏州大学机电工程学院,苏州 215021
- Keywords:
Miniaturized mass spectrometer;
In-situ ionization source;
Dielectric barrier discharge;
On-site detection
- From:
Chinese Journal of Analytical Chemistry
2025;53(4):561-567
- CountryChina
- Language:Chinese
-
Abstract:
A dielectric barrier discharge ionization source with rapid evaporation and self-aspiration sampling(RE-SADBDI)was developed,integrating a rapid evaporation(RE)module and a dielectric barrier discharge ionization(DBDI)module.The sample was introduced into the RE module via a sampling swab and rapidly vaporized within it.The sealed design of the ionization source could enable the sample to be self-aspirated into the ionization region without the need of additional inert gas.All vaporized sample was efficiently directed into the ionization region due to the relatively enclosed environment for sample transfer and ionization,resulting in improved transfer and ionization efficiencies.Experimental results showed that the limit of detection(LOD)under ion isolation mode reached 0.05 ng/mL(caffeine),with a relative standard deviation(RSD)of 6.9%.Furthermore,when coupled with a miniaturized linear ion trap mass spectrometer,the source enabled real-time analysis of various sample types.The developed RE-SADBDI source was suitable for on-site analysis with miniaturized mass spectrometers.
