Real-time spectral acquisition and size exclusion chromatography combined to give verification of copolymerization and analysis of composition, all as a function of molecular size

1986 ◽  
Vol 19 (3) ◽  
pp. 803-809 ◽  
Author(s):  
John J. Meister ◽  
John C. Nicholson ◽  
Damodar R. Patil ◽  
Larry R. Field
Keyword(s):  
Real Time ◽  
Size Exclusion Chromatography ◽  
Molecular Size ◽  
Size Exclusion ◽  
Exclusion Chromatography

Determination of molecular size parameters and quantification of polyacrylic acid by high performance size-exclusion chromatography with triple detection

2017 ◽  
Vol 409 (8) ◽  
pp. 2083-2092 ◽  
Author(s):  
Jean-François Cotte ◽  
Afifa Bouadam ◽  
Agathe Sordoillet ◽  
Isabelle Jaudinaud ◽  
Véronique Chambon ◽  
...  
Keyword(s):  
Size Exclusion Chromatography ◽  
Polyacrylic Acid ◽  
High Performance ◽  
Molecular Size ◽  
Size Exclusion ◽  
Exclusion Chromatography

New Insights into Resid Desulfurization Processes: Molecular Size Dependence of Catalytic Performances Quantified by Size Exclusion Chromatography-ICP/MS

2013 ◽  
Vol 27 (11) ◽  
pp. 6567-6574 ◽  
Author(s):  
Jérémie Barbier ◽  
Charles-Philippe Lienemann ◽  
Agnès Le Masle ◽  
Pascal Chatron-Michaud ◽  
Bertrand Guichard ◽  
...  
Keyword(s):  
Size Exclusion Chromatography ◽  
Size Dependence ◽  
Molecular Size ◽  
Size Exclusion ◽  
Icp Ms ◽  
Exclusion Chromatography ◽  
Catalytic Performances

Evaluation of photocatalytic degradation of a commercial humic acid in water using a simulated solar UV irradiation and monitoring the changes by size exclusion chromatography

2011 ◽  
Vol 11 (6) ◽  
pp. 692-698 ◽  
Author(s):  
S. Valencia ◽  
J. Marín ◽  
G. Restrepo ◽  
F. H. Frimmel
Keyword(s):  
Humic Acid ◽  
Photocatalytic Degradation ◽  
Size Exclusion Chromatography ◽  
Uv Irradiation ◽  
Molecular Size ◽  
Size Exclusion ◽  
Size Fractions ◽  
Preferential Adsorption ◽  
Exclusion Chromatography ◽  
Solar Uv

Much research has been undertaken on the photocatalytic degradation of humic substances with titanium dioxide using commercial humic acids (HA), which are extracts from either peat or coal. Most of the research has been focused on the changes in dissolved organic carbon (DOC) and UV254 absorption. These parameters only give a general assessment. This work studies the changes in the physical and structural properties of a commercial humic acid by size exclusion chromatography with DOC and UV254 absorption detection (SEC-DOC, SEC-UV254), and the evolution of halogenated organic compounds (AOX) and trihalomethanes (THMs) during the photocatalytic degradation with simulated solar UV irradiation and Degussa P-25 TiO2. These changes are compared with those reported for natural organic matter (NOM). The photodegradation of commercial HA and NOM proceeds in a similar and sequential manner, initially with the preferential adsorption of larger molecules, then the degradation of these larger molecular size fractions and proceeding towards smaller molecular size fractions, while decreasing THMs and AOX formation potential.

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