Physical and chemical analyses


ALS is a leading provider of analyses of pharmaceutical products, intermediate products and raw materials used in drug manufacturing.

Given the complexity of the services provided, the qualified analytical equipment and the experienced and qualified team of analysts, clients can have full confidence in the integrity and quality of the test results reported by us.

Instrumental methods

  • Determination of active substance content
  • Determination of excipient content
  • Identification
  • Determination of impurities content
  • Dissolution profiles
  • Disintegration
  • Dimensions and hardness of solid dosage forms
  • pH
  • Conductivity
  • Loss through drying in the drying oven
  • Annealing loss
  • Sulphated ash
  • Water content
  • Identification via FTIR method
  • UV/VIS spectroscopic parameters
  • Optical rotation
  • Specific optical rotation
  • Refractive index
  • Appearance and colour of solutions
  • Metal content
  • Total organic carbon
  • Residual solvent content


  • Identification via a thin-layer chromatography method
  • Sieve analysis
  • Content determination by titration
  • Appearance
  • Density
  • Ionic precipitation reactions