We offer various chemical analyses, related services (including R&D services) and training. The main field of services is the determination of microelements and bioactive substances in natural and technical objects and biological materials using modern instrumental analysis methods. Since 2010, we also offer chemicals registration tests (REACH).
Chemical analyzes of biomass and biopolymers
- Moisture content (dry matter content)
- Ash, mineral fraction (ashing at 525°C or 900°C) Elemental analysis (CHNSO)
- Content of micro and macro elements in biomass and products (Ag, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Ni, Pb, Se, Zn, Al, Au, Ba, Eu , Ga, Li, Mo, Nb, Pd, Pt, Re, Sb, Sr, Ta, Ti, U, V, W, Y) Extractives (TAPPI 204) (fatty and resin acids, sterols, triglycerides, terpenes, etc.) , which are soluble in water, acetone, ethanol, ethanol-toluene mixture (ASTM D1106-97), THF, etc.
- Composition and content of carbohydrates (cellulose and hemicellulose sugars - total amount, 5-HMF, fucose, cellobiose, galactose, glucose, mannose, arabinose, xylose) - acid hydrolysis
- Lignin content (Klason lignin, acid-soluble lignin, acid-insoluble lignin, total lignin)
- Quantitative analysis of monolignols in lignin (S/G/H units) (acidic thiohydrolysis + GC-MS)
- Determination of functional groups - acid, hydroxyl (aliphatic, aromatic, carboxylic acid), acetyl, methoxy groups
- Macromolecular properties of biopolymers (exclusion chromatography) - molecular weight distribution (Mn, Mw) and degree of dispersion (PDI)
- Determination of the structure of organic matter (NMR, FTIR)
- Characterization of natural materials and composites using X-ray diffraction (XRD) and scanning electron microscopy (SEM)
- Solubility of lignin
Contact: analyytika@puidukeemia.ee
Replacing materials of fossil origin with bio-based ones
In connection with the green revolution, we offer consultations and applied research to business partners regarding the replacement of fossil-based plastics with bio-based plastics and natural additives in various plastic products, packaging and composites. Based on the requirements of the products, we find suitable replacements, prepare mixtures or composites and determine their chemical, thermal, mechanical and rheological properties and resistance to accelerated aging. We recommend the most suitable technologies and technological parameters for the processing of these bio-based materials.
