Determination of pinene content in black liquor by solvent-assisted/pyrogallol-protected headspace gas chromatography (HS-GC)
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Hui-Chao Hu
,
Tong Zeng
Abstract
A solvent-assisted and pyrogallol (PG)-protected headspace gas chromatography (HS-GC) method was developed to determine the pinene (α- and β-pinene) content in the kraft pulping black liquor (BL). Ethanol (EtOH) addition eliminated pinene’s micelles in BL by complete dissolution in the EtOH/BL medium. PG was applied to protect pinene from oxidation during the sample storage and measurement. The results showed that, with a 25% (v/v) of EtOH content and a 0.1 g of PG in 5-ml of sample solution, a rapid and stable pinene HS extraction can be obtained in 20 min at 80°C. The method has high precision with relative standard deviations within 4.2%. The sensitivity [limits of quantification (LOQ) are ~140 μg l−1] was high, and a good accuracy (recovery=96.0–104%) was typical for the pinene detection. The presented method is simple, rapid, accurate and is suitable for pinene quantification in biorefinery related processes and it leads to the preparation of high-value chemicals.
Funding source: Fujian Provincial Department of Science and Technology
Award Identifier / Grant number: 2015J05018
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 31700507
Award Identifier / Grant number: 21576105
Funding statement: The authors acknowledge the Fujian Provincial Department of Science and Technology, Funder Id: 10.13039/501100005270 (2015J05018), National Natural Science Foundation of China, Funder Id: 10.13039/501100001809 (31700507 and 21576105), Fujian Provincial Department of Education (JK2014015), and National Key Research and Development Program of China (2017YFB0307900) for sponsoring this research.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Employment or leadership: None declared.
Honorarium: None declared.
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original Articles
- Deposition of xylan isolated from Pennisetum purpureum on fibres of Eucalyptus globulus and characterisation of the composition of the surface xylans by immunolabelling and enzymatic peeling
- Preparation and properties of pulp fibers treated with zinc oxide nanoparticles by in situ chemosynthesis
- Direct production of lignin nanoparticles (LNPs) from wood using p-toluenesulfonic acid in an aqueous system at 80°C: characterization of LNP morphology, size, and surface charge
- Effects of lignin in wood on moisture sorption and hygroexpansion tested under dynamic conditions
- Electrochemical oxidation of lignin for the production of value-added chemicals on Ni-Co bimetallic electrocatalysts
- Isolation and characterization of lignin from beech wood and chestnut sawdust for the preparation of lignin nanoparticles (LNPs) from wood industry side-streams
- Determination of pinene content in black liquor by solvent-assisted/pyrogallol-protected headspace gas chromatography (HS-GC)
- Review
- Dielectric barrier discharge (DBD) plasma pretreatment of lignocellulosic materials in air at atmospheric pressure for their improved wettability: a literature review
- Original Articles
- Surface chemical composition and roughness as factors affecting the wettability of thermo-mechanically modified oak (Quercus robur L.)
- Relationship between anatomy and shear strength in wood of Larix sibirica
Artikel in diesem Heft
- Frontmatter
- Original Articles
- Deposition of xylan isolated from Pennisetum purpureum on fibres of Eucalyptus globulus and characterisation of the composition of the surface xylans by immunolabelling and enzymatic peeling
- Preparation and properties of pulp fibers treated with zinc oxide nanoparticles by in situ chemosynthesis
- Direct production of lignin nanoparticles (LNPs) from wood using p-toluenesulfonic acid in an aqueous system at 80°C: characterization of LNP morphology, size, and surface charge
- Effects of lignin in wood on moisture sorption and hygroexpansion tested under dynamic conditions
- Electrochemical oxidation of lignin for the production of value-added chemicals on Ni-Co bimetallic electrocatalysts
- Isolation and characterization of lignin from beech wood and chestnut sawdust for the preparation of lignin nanoparticles (LNPs) from wood industry side-streams
- Determination of pinene content in black liquor by solvent-assisted/pyrogallol-protected headspace gas chromatography (HS-GC)
- Review
- Dielectric barrier discharge (DBD) plasma pretreatment of lignocellulosic materials in air at atmospheric pressure for their improved wettability: a literature review
- Original Articles
- Surface chemical composition and roughness as factors affecting the wettability of thermo-mechanically modified oak (Quercus robur L.)
- Relationship between anatomy and shear strength in wood of Larix sibirica
