Physico-chemical studies

The physico-chemical properties, the behavior of substances in different matrices, their capacity to adsorb, to dissolve, to evaporate, to freeze and so many others, are essential parameters allowing the characterization of a substance or a chemical product.
We support our customers in the characterization of their substances. Each substance being unique, the expertise of the teams, mastery of the OECD guidelines and knowledge of the various regulations are a major asset in the correct choice and adaptation of the tests to be carried out.

Substances characterization

UV – IR Spectrum analysis
NMR data interpretation
GC-MS or LC-MS or IC spectroscopy
High-resolution mass spectrometry
Purity analysis

Registration tests

OECD 101 – UV-VIS Absorption Spectra
OECD 102 – Melting Point/ Melting Range
OECD 103 – Boiling Point
OECD 105 – Water Solubility
OECD 106 – Adsorption — Desorption using a Batch Equilibrium Method
OECD 107 – Partition Coefficient (n-octanol/water)
OECD 109 – Density of liquids or solids
OECD 111 – Hydrolysis as a Function of pH
OECD 112 – Dissociation Constants in Water
OECD 117 – Partition Coefficient (n-octanol/water), HPLC Method
OECD 120 – Solution/Extraction Behaviour of Polymers in Water
OECD 121 – Estimation of the Adsorption Coefficient (Koc ) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC)
OECD 122 – Determination of pH, Acidity and Alkalinity
OECD 123 – Partition Coefficient (1-Octanol/Water): Slow-Stirring Method