TY  - JOUR
TI  - Representation of the Diurnal Distribution of Organic Aerosol by Multidimensional Liquid Chromatography Systems
AB  - Aerosols have various effects on human health, climate, and ecosystems. Aerosols also have an important role in climate changeby altering the radiation balance and lifetime and properties of clouds. Organic aerosol (OA) is composed of a mixture ofhundreds to thousands of organic compounds that varies geographically, diurnally, and seasonally according to several factors,such as type and concentration of precursor, type and concentration of oxidants, temperature, relative humidity, among others.The type and number of functional groups composing individual organic species influence their interaction with water vaporand sunlight, therefore affecting both the water cycle and radiation balance. Great efforts have been made to develop analyticaltechniques that allow the identification and quantification of individual species composing this complex mixture of organicmatter and decrease the uncertainty of models to accurately predict OA formation and evolution. In this study, it was foundthat most of the column combinations were not adequate and the best system was provided by methanol: water (1:1). Thecombination of columns that provided the best separation of the standard compounds was provided by Cyclohexyl and Methylas primary and secondary columns. However, when this combination of columns was used to represent the evolution of ambientair organic aerosols, significant co-elution was observed. The positive outcome of this study will be helpful to evaluate 2D-LCas a potential technique for more accurate determination of organic aerosol components and to understand organic aerosolformation and transformation pathways that can be used in secondary organic aerosol production models.
AU  - Mertoğlu, Elif
AU  - Flores, Rosa M
DO  - 10.7240/jeps.808964
PY  - 2021
JO  - International journal of advances in engineering and pure sciences (Online)
VL  - 33
IS  - 2
SN  - 2636-8277
SP  - 277
EP  - 286
DB  - TRDizin
UR  - http://search/yayin/detay/457445
ER  -