scholarly journals Thermogravimetric analysis of soot combustion in the presence of ash and soluble organic fraction

RSC Advances ◽  
2020 ◽  
Vol 10 (55) ◽  
pp. 33436-33443 ◽  
Author(s):  
Qian Zhang ◽  
Jia Fang ◽  
Zhongwei Meng ◽  
Chen Chen ◽  
Zihan Qin
Keyword(s):  
Thermogravimetric Analysis ◽  
Organic Fraction ◽  
Soot Combustion ◽  
Soluble Organic Fraction

Soot (Printex U, PU) combustion in the presence of ash and soluble organic fraction (SOF) was studied by thermogravimetric analysis (TGA).

Characterization of Soluble Organic Fraction in DPM: Optimization of the Extraction Method

1999 ◽  
Author(s):  
Antonio de Lucas ◽  
Antonio Durán ◽  
Manuel Carmona ◽  
Magín Lapuerta
Keyword(s):  
Extraction Method ◽  
Organic Fraction ◽  
Soluble Organic Fraction

Effect of Biodiesel Blending on the Speciation of Soluble Organic Fraction from a Light Duty Diesel Engine

2010 ◽  
Author(s):  
Andrea Strzelec ◽  
David Foster ◽  
Christopher Rutland ◽  
Sam Lewis ◽  
John Storey ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Organic Fraction ◽  
Light Duty ◽  
Soluble Organic Fraction

scholarly journals Modelling the hygroscopic growth factors of aerosol material containing a large water-soluble organic fraction, collected at the Storm Peak Laboratory

2019 ◽  
Vol 214 ◽  
pp. 116760 ◽  
Author(s):  
Simon L. Clegg ◽  
Lynn R. Mazzoleni ◽  
Vera Samburova ◽  
Nathan F. Taylor ◽  
Don R. Collins ◽  
...  
Keyword(s):  
Growth Factors ◽  
Water Soluble ◽  
Hygroscopic Growth ◽  
Organic Fraction ◽  
Soluble Organic Fraction ◽  
Large Water

Chemical composition of fine particles (PM2.5): water-soluble organic fraction and trace metals

2017 ◽  
Vol 10 (7) ◽  
pp. 845-852 ◽  
Author(s):  
Luciana Maria Baptista Ventura ◽  
Vinícius Lionel Mateus ◽  
Alexandre Collett Solberg Leitão de Almeida ◽  
Kristine Bruce Wanderley ◽  
Fabio Tadashi Taira ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Trace Metals ◽  
Fine Particles ◽  
Water Soluble ◽  
Organic Fraction ◽  
Soluble Organic Fraction

Composition of water-soluble organic carbon in non-urban atmospheric aerosol collected at the Storm Peak Laboratory

2013 ◽  
Vol 10 (5) ◽  
pp. 370 ◽  
Author(s):  
Vera Samburova ◽  
A. Gannet Hallar ◽  
Lynn R. Mazzoleni ◽  
Parichehr Saranjampour ◽  
Douglas Lowenthal ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Carbon ◽  
Negative Ions ◽  
Water Soluble ◽  
Organic Fraction ◽  
Sugar Alcohols ◽  
Organic Species ◽  
Soluble Organic Fraction ◽  
Water Soluble Organic Carbon ◽  
Soluble Organic Carbon

Environmental context The organic fraction of atmospheric aerosols is a complex mixture of thousands of species, which play an important role in many atmospheric processes, such as absorbing and scattering solar radiation. We analysed the water-soluble organic fraction of ambient aerosol samples, and quantified over 45 carboxylic acids, sugars, sugar anhydrides and sugar alcohols. The presence of fairly high concentrations of sugars and sugar-alcohols suggests a significant biological input (e.g. pollen, fungi and bacteria) to the water-soluble organic fraction of non-urban aerosols. Abstract Water-soluble organic constituents of PM2.5 aerosol (particulate matter with an aerodynamic diameter ≤2.5µm) have not been well characterised so far. The goal of this work was to perform quantitative analysis of individual water-soluble organic species in aerosol samples collected in July of 2010 at the Storm Peak Laboratory (3210m above sea level) located in the Colorado Park Range (Steamboat Springs, CO, USA). Aqueous extracts were combined into six composites and analysed for organic carbon (OC), water-soluble organic carbon (WSOC), water-insoluble OC, inorganic ions, organic acids, lignin derivatives, sugar-alcohols, sugars and sugar-anhydrates. Analysis of higher molecular weight water-soluble organics was done using ultrahigh resolution mass spectrometry. Approximately 2400 positive and 4000 negative ions were detected and assigned to monoisotopic molecular formulae in the mass range of 100–800Da. The higher number of negative ions reflects a predominant presence of highly oxidised organic compounds. Individual identified organic species represented up to 30% of the water-soluble organic mass (WSOM). The WSOM fractions of the low molecular weight organic acids, sugars and sugar alcohols were 3–12%, 1.0–16% and 0.4–1.9%. Significant amounts of arabitol, mannitol and oxalic acid are most likely associated with airborne fungal spores and conidia that were observed on the filters using high resolution electron microscopy. Overall, higher concentrations of sugars (glucose, sucrose, fructose etc.) in comparison with biomass burning tracer levoglucosan indicate that a significant mass fraction of WSOC is related to airborne biological species.

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