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Sorption Analysis and Testing

Sorption analysis, testing and characterization.

Intertek ASA laboratory offers a wide range of absorption and adsorption testing and analysis techniques. The sorption laboratory provides absorption, adsorption, chemisorption and ion exchange measurement services. Sorption expertise includes film permeation, gas isotherms, vapor isotherms, kinetics, diffusion, molecular gating, catalysis, sorbents, nano-materials and more.

Sorption laboratory analysis:  

  • Sorption Kinetics analysis
  • Sorption Diffusion analysis
  • Molecular Gating studies
  • Catalysis trouble-shooting
  • Sorbent trouble-shooting
  • Nanomaterial characterization
  • Food packaging and other polymer film permeation studies

Sorption analytical capabilities: 

  • Permeation through polymer films: 
    • Measurement of ambient temperature/pressure permeation rates for single, inert or flammable gases
    • Typical gases include CO2, CH4, He, O2, N2, Ar, H2
    • Variable temperature available (0 < T < 60 C)
    • Mixed gas and hydrated gas measurements also performed
       
  • Gas Isotherms:
    • Low pressure (P < 1 atm) isotherms at 0 C < T < 80 C
    • Low pressure (P < 1 atm) isotherms at 10 K < T < 353 K
    • N2 BET surface area
    • Kr BET surface area available for materials with low surface areas (SA < 5 m2/g)
    • N2 pore size distribution analysis
    • Active metal surface area analysis (chemisorption)
    • Sample preparation involves high temperature conditioning of samples under dynamic vacuum
    • High pressure (P < 125 atm) isotherms at 0 C < T < 400 C
    • Typical gases include CO2, CH4, He, O2, N2, Ar, H2, CO, NF3, N2O, CF4
       
     
  • Vapor Isotherms: 
    • Low pressure (P < 1 atm) isotherms at 10 C < T < 400 C
    • High pressure (P < 125 atm) isotherms at 10 C < T < 400 C. Conditions must be selected such that vapor condensation does not occur.
    • Sample preparation involves high temperature conditioning of samples under dynamic vacuum
    • Typical vapors include H2O, toluene, n-pentane, n-hexane
     
  • Helium Density (Pycnometry):  
    • Ambient temperature, skeletal density measurements. With 77 K N2 isotherm (or Hg Intrusion) data provides total porosity
    • High-temperature helium pycnometry provides skeletal density between 25 C < T < 300 C
    • Sample preparation involves high temperature conditioning of samples under dynamic vacuum 
Sorption analysis:

to see how Intertek can help your organization with Sorption Analysis and Testing.