Chemical characterization

Updated: 2013-04-22 | Print

The main focus of research is to improve quality and functionality of fibre, paper and novel materials, based on detailed knowledge about morphological and chemical fibre characteristics. In this respect we have developed and established a series of techniques for chemical characterisation.

Contact: Ingebjørg Leirset

 

Selected Methods

Water  
Extractive content:  
Gravimetric determination PFI-method-05-P-15
Quantitative analysis, group separation PFI-method-05-P-13
Quantitative analysis , single components PFI-method-05-P-16
   
Carbohydrates:  
Total carbohydrates, the phenol-sulphuric acid  method PFI-method-05-P-11
Hemicelluloses  and uronic acid, methanolysis PFI-method-05-P-12
Quantitative composition, cellulose and hemicellulose PFI-method-05-P-17
Reducing sugars, Nelsons method PFI-method-05-P-18
   
Lignin  
Compounds in the water phase after MTBE-extraction PFI-method-05-P-19
   
Other water analyses  
COD  Dr.Lange:  Determination of chemical oxygen demand PFI-method-05-P-20
Particle size  PFI-method-05-P-21
Colour NS 4787
Suspended matter  and residue on ignition NS 4733
Dry content and residue on ignition NS 4764
pH NS 4720
Conductivity NS 4721
   
   
Pulp and paper  
Extractive content  
Gravimetric determination - Acetone SCAN-CM 49:03
Gravimetric determination - Lipophilic matter                
SCAN-CM 67:03
Quantitative analysis, group separation PFI-method-05-P-13
Quantitative analysis , single components PFI-method-05-P-22
   
Carbohydrates  
Hemicelluloses  and uronic acid, methanolysis PFI-method-05-P-12
Quantitative composition, cellulose and hemicellulose PFI-method-05-P-23
   
Lignin  
Acid insoluble (Klason) and acid soluble lignin PFI-method-05-P-24
   
Charge  
Total  charge PFI-method-05-P-25
Total charge - Total acidic group content SCAN CM 65:02
Surface charge PFI-method-05-P-26
   
   
Other analysis  
Sulfonic acid PFI-method-05-P-27
Volatile compounds:  (based on "purge & trap"-GC/MS) PFI-method
Dry residue, HR73 Moisture Analyzer (balance) PFI-method-05-P-A-02
Ash, 525°C ISO 1762
Deposits:  Quantitative analysis -  py-GC/MS and  FT-IR  
MFC-films: OTR,  oxygen transmission rate PFI-method-05-P-28

 

Contact: Ingebjørg Leirset

SCAN CM 65:02