Volatility parameters of secondary organic aerosol components determined using a thermal denuder

Exploring Volatility Properties of Discrete Secondary Organic Aerosol Constituents of α-Pinene and Polycyclic Aromatic Hydrocarbons

“…Volatility Measurements. A KNU thermal denuder described in Babar et al 34 was utilized for volatility measurements for all SOA species. Briefly, it consisted of a heating section with a stainless steel tube (OD 2.54 cm × L 100 cm) and a cooling denuder section of a copper tube (OD 1.27 cm × L 100 cm).…”

“…A detailed description and characterization of the KNU thermal denuder has been discussed elsewhere. 34 For each SOA species, dilute aqueous solutions were prepared from the respective stock solutions of 0.1% (w/w) to achieve a target particle volume concentration of ∼350 μm 3 cm −3 . The dilute aqueous solutions of individual SOA species were atomized, dried, and neutralized using a homemade Collison atomizer similar to TSI model 3076, a diffusion dryer loaded with silica gel, and an aerosol charge neutralizer (4530 HCT, Korea), respectively.…”

“…In this study, a Kyungpook National University (KNU) thermal denuder was utilized to analyze the volatility behavior of organic aerosol species. 34 The volatility profile data of four synthesized (i.e., 3-MBTCA, terpenylic acid, DTAA, and Na-2-OH-2,6,6-TMBHS) and two commercial SOA constituents (i.e., 1,2,4,5-B4CA and 1,2,4-B3CA) were generated. The melting temperatures of all chemical species were determined using thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC).…”

Can the Heston Model Forecast Energy Generation? A Systematic Literature Review

“…In addition to the problems of the financial sector, the need to understand volatility is also observed in others subjects, as quality control in industries, forecast of power generation and effects of climate change (Babar et al, 2020;Mehmood et al, 2020;Qiu et al, 2020;Ramos-Meza et al, 2021;Schilling and Holzgrabe, 2020). The successful pricing models could contribute to solving these problems, such as the study that extended the used of the Heston model to forecast vehicle collision rates and another that applied the Black-Scholes model to analyze the evolution of a brain tumor under health treatment (Shannon and Fountas, 2021;Sinkala and Nkalashe, 2020).…”

Dynamic Imaging and Characterization of Volatile Aerosols in E-Cigarette Emissions Using Deep Learning-Based Holographic Microscopy

“…The dynamic evaporation of a volatile particle raised enduring research interest that can be traced back to the 19th century . Thermal denuders were used as a potential candidate, providing inline saturation pressure measurements, especially in aerosol studies. ,, A thermal denuder compares particle size distribution and concentration of a cloud of volatile particles before and after they evaporate under precise control of the heating temperature and time. Thermal dynamic models are used to map differences in particle number and size distribution to the physical parameters of volatile particles.…”