title: [Application of on-line single particle aerosol mass spectrometry (SPAMS) for studying major components in fine particulate matter].
abstract: Based on preliminary studies by aerosol time-of-flight mass spectrometer (ATOFMS) and single particle aerosol mass spectrometer (SPAMS), typical methods for identifying the number of particles (or particle count) for five major components including sulfate, nitrate, ammonium, organic carbon (OC), and elemental carbon (EC) in China and abroad were summarized. In this study, combined with the characteristics of single particle mass spectrum by SPAMS, an optimized method is proposed. With field measurement using SPAMS during January 2013 in Beijing, particle counts of sulfate, nitrate, ammonium, OC, and EC determined by different methods were compared. The comparison with results of off-line filter analyses for these five components proved that the method proposed in this study is comparable and optimized. We also suggest factors needed to be considered in future application of SPAMS and other areas that require in-depth research.
authors: Huai-yu
authors: HY
authors: Fu
authors: Cai-qing
authors: CQ
authors: Yan
authors: Mei
authors: M
authors: Zheng
authors: Jing
authors: J
authors: Cai
authors: Xiao-ying
authors: XY
authors: Li
authors: Yan-jun
authors: YJ
authors: Zhang
authors: Zhou Zhen
authors: Zhong
authors: Z
authors: Fu
authors: Mei
authors: M
authors: Li
authors: Lei
authors: L
authors: Li
authors: Yuan-Hang
authors: YH
authors: Zhang
mesh_terms: D000336:Aerosols / Q000032:analysis; D000393:Air Pollutants / Q000032:analysis*; D064751:Ammonium Compounds / Q000032:analysis; D002244:Carbon / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000295:instrumentation*; D013058:Mass Spectrometry / Q000379:methods*; D009566:Nitrates / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis*; D013431:Sulfates / Q000032:analysis
chemical_list: D000336:Aerosols; D000393:Air Pollutants; D064751:Ammonium Compounds; D009566:Nitrates; D052638:Particulate Matter; D013431:Sulfates; D002244:Carbon