Evaluation of a New Particle Trap in a Laser Desorption Mass Spectrometer for Online Measurement of Aerosol Composition
Evaluation of a New Particle Trap in a Laser Desorption Mass Spectrometer for Online Measurement of Aerosol Composition
复制标题
激光解吸质谱仪中用于在线测量气溶胶成分的新型颗粒捕集器的评估
DOI:
10.1080/02786826.2011.635727
复制
发表时间:
2012
影响因子:
5.2
通讯作者:
N. Hirayama
中科院分区:
文献类型:
--
作者:
N. Takegawa;T. Miyakawa;T. Nakamura;Y. Sameshima;M. Takei;Y. Kondo;N. Hirayama
We have developed a new analyzer for the online measurement of aerosol composition: a particle trap laser desorption mass spectrometer (PT-LDMS). The main components of the instrument include an aerodynamic lens, a particle trap enclosed by a quartz cell, a quadrupole mass spectrometer (QMS), a vacuum chamber incorporating the above components, and a carbon dioxide (CO2) laser (wavelength 10.6 μm). The aerodynamic lens generates a beam of submicron particles, which is focused on a small area on the particle trap. The particle trap consists of custom-made mesh layers, the structure of which was newly designed using engineering techniques for micro electro mechanical systems (MEMS). A large number of mesh frames are well arranged in the trap, and particles can be efficiently captured after multiple impactions on the frames. The CO2 laser is used to vaporize aerosol compounds captured on the particle trap. The evolved gas confined within the quartz cell is analyzed using an electron impact ionization (EI) QMS to quantify the chemical composition of the particles. The concept of the PT-LDMS and first evaluation of its performance are presented, specifically focusing on the structure and performance of the particle trap.
影响因子:
5.2
作者:
N. Takegawa;T. Miyakawa;M. Watanabe;Y. Kondo;Y. Miyazaki;S. Han;Yongjing Zhao;D. Pinxteren;E. Brüggemann;T. Gnauk;H. Herrmann;R. Xiao;Z. Deng;Min Hu;T. Zhu;Y. Zhang
通讯作者:
N. Takegawa;T. Miyakawa;M. Watanabe;Y. Kondo;Y. Miyazaki;S. Han;Yongjing Zhao;D. Pinxteren;E. Brüggemann;T. Gnauk;H. Herrmann;R. Xiao;Z. Deng;Min Hu;T. Zhu;Y. Zhang
影响因子:
5.2
作者:
Jayne, JT;Leard, DC;Worsnop, DR
通讯作者:
Worsnop, DR
DOI:
--
发表时间:
2005
期刊:
Aerosol Science and Technology 39
影响因子:
--
作者:
Takegawa;N.;Y.Miyazaki;Y.Kondo他7名
通讯作者:
Y.Kondo他7名