Accurate molecular weight analysis of histones using FFE and RP-HPLC on monolithic capillary columns

2009 ◽  
Vol 32 (15-16) ◽  
pp. 2691-2698 ◽  
Author(s):  
Evert-Jan Sneekes ◽  
Jun Han ◽  
Monica Elliot ◽  
Juan Ausio ◽  
Remco Swart ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Capillary Columns ◽  
Rp Hplc ◽  
Monolithic Capillary Columns ◽  
Weight Analysis

Separating ultra-high molecular weight polymers on monolithic capillary columns

2013 ◽  
Vol 87 (2) ◽  
pp. 308-313 ◽  
Author(s):  
E. N. Viktorova ◽  
A. A. Korolev ◽  
V. A. Orekhov ◽  
A. Yu. Kanat’eva ◽  
A. A. Kurganov
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Capillary Columns ◽  
High Molecular Weight Polymers ◽  
Monolithic Capillary Columns ◽  
Ultra High Molecular Weight

Silica-based monolithic capillary columns—Effect of preparation temperature on separation efficiency

2010 ◽  
Vol 1217 (36) ◽  
pp. 5737-5740 ◽  
Author(s):  
Josef Planeta ◽  
Dana Moravcová ◽  
Michal Roth ◽  
Pavel Karásek ◽  
Vladislav Kahle
Keyword(s):  
Separation Efficiency ◽  
Capillary Columns ◽  
Preparation Temperature ◽  
Monolithic Capillary Columns

scholarly journals Temperate UV-Accelerated Weathering Cycle Combined with HT-GPC Analysis and Drop Point Testing for Determining the Environmental Instability of Polyethylene Films

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2373
Author(s):  
Celine Moreira ◽  
Richard Lloyd ◽  
Gavin Hill ◽  
Florence Huynh ◽  
Ana Trufasila ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Outdoor Exposure ◽  
Accelerated Weathering ◽  
Polyethylene Films ◽  
Parallel Testing ◽  
Mapping Analysis ◽  
Environmental Instability ◽  
Weight Analysis ◽  
Physical Changes ◽  
Ir Spectroscopic

Polyethylene films are one of the most frequently used packaging materials in our society, due to their combination of strength and flexibility. An unintended consequence of this high use has been the ever-increasing accumulation of polyethylene films in the natural environment. Previous attempts to understand their deterioration have either focused on their durability using polymer analysis; or they have focused on changes occurring during outdoor exposure. Herein, this study combines those strategies into one, by studying the chemical and physical changes in the polyethylene structure in a laboratory using molecular weight and IR spectroscopic mapping analysis, combined with temperate UV-accelerated weathering cycles. This approach has been correlated to real-world outdoor exposure timeframes by parallel testing of the sample polyethylene films in Florida and France. The formation of polyethylene microparticles or polyethylene waxes is elucidated through comparison of drop point testing and molecular weight analysis.

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