Gel Permeation Chromatography in Determining Molecular Weights of Lignins: Critical Aspects Revisited for Improved Utility in the Development of Novel Materials
| Autor: | Heiko Lange, Claudia Crestini, Federica Rulli |
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| Přispěvatelé: | Lange, H, Rulli, F, Crestini, C, Lange, Heiko, Rulli, Federica, Crestini, Claudia |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
De facto
General Chemical Engineering Conversion factor 02 engineering and technology 010402 general chemistry Key issues 01 natural sciences Data treatment Lignin Rendering (computer graphics) Gel permeation chromatography Lignin valorization Data acquisition Calibration Environmental Chemistry Renewable Energy Sustainability and the Environment Sample preparation Renewable Energy Accuracy Settore CHIM/03 - Chimica Generale e Inorganica Chromatography Sustainability and the Environment Chemistry Detector General Chemistry Precision 021001 nanoscience & nanotechnology 0104 chemical sciences 0210 nano-technology Biological system |
| Popis: | Driven by the need of a simple method to arrive at rather accurate molecular mass key data for different lignin samples across different laboratories, we revisited thoroughly the different aspects that comprise the determination of molecular weight key data of lignins by means of gel permeation chromatography. We considered setup issues and their effect on calibration, implications emerging from sample preparation, issues connected to data acquisition, and effects of raw data evaluation. Considering identified key issues, we propose a standardized setup in connection with a standardized data treatment that ensures the generation of precise GPC results. The introduction of an additional lignin-type depending correction factor, which is delineated using averaged bidimensional NMR-based advanced structural information obtained for a given lignin type, allows us to account for system-inherent bias, rendering the precise measurements de facto accurate. |
| Databáze: | OpenAIRE |
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