title: Magnetic graphene composites as both an adsorbent for sample enrichment and a MALDI-TOF MS matrix for the detection of nitropolycyclic aromatic hydrocarbons in PM2.5.
abstract: A simple and rapid method that uses synthesized magnetic graphene composites as both an adsorbent for enrichment and as a matrix in MALDI-TOF MS analysis was developed for the detection of nitropolycyclic hydrocarbons (nitro-PAHs) in PM2.5 samples. Three nitro-PAHs were detected down to sub pg μL(-1) levels based on calculations from an instrumental signal-to-noise better than 3, which shows the feasibility of using the new materials in MALDI-TOF MS as a potential powerful analytical approach for the analysis of nitro-PAHs in PM2.5 samples.
authors: Institute of Environmental Science, Shanxi University, Taiyuan 030006, P.R. China. dc@sxu.edu.cn.
authors: Jiangang
authors: J
authors: Zhang
authors: Li
authors: L
authors: Zhang
authors: Ruijin
authors: R
authors: Li
authors: Di
authors: D
authors: Hu
authors: Nengxuan
authors: N
authors: Ma
authors: Shaomin
authors: S
authors: Shuang
authors: Zongwei
authors: Z
authors: Cai
authors: Chuan
authors: C
authors: Dong
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D006108:Graphite / Q000737:chemistry*; D008280:Magnetics; D053761:Nanocomposites / Q000737:chemistry*; D017672:Nitrogen Compounds / Q000032:analysis*; D052638:Particulate Matter / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
chemical_list: D000393:Air Pollutants; D017672:Nitrogen Compounds; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons; D006108:Graphite