Application of Brunauer Emmett Teller (BET) Surface Area Analysis
BET surface area analysis plays a crucial role across various fields by providing detailed insights into material properties. In the pharmaceutical industry, BET analysis is essential for assessing the effectiveness and stability of drug formulations. It helps evaluate the surface area and porosity of both excipients and active pharmaceutical ingredients to ensure consistent drug delivery and performance.
For catalysis, BET analysis is used to optimize catalytic processes. By analyzing the surface area of catalysts, researchers can better understand and improve their activity and efficiency in chemical reactions.
In materials science, BET analysis aids in assessing the texture and surface characteristics of materials. This information is vital for developing new materials with specific properties and applications.
Core Principles of BET Analysis
BET analysis is based on the principle of physical adsorption, where gas molecules adhere to the surface of a solid material. This process occurs at low temperatures and involves non-chemical, reversible interactions between the gas and the solid surface. The amount of gas adsorbed is related to the surface area of the material.
The BET equation, developed by Brunauer, Emmett, and Teller, is used to interpret the adsorption data. The equation describes the relationship between the number of gas molecules adsorbed at a given relative pressure.
In the measurement process, a sample is exposed to a gas, typically nitrogen, at various pressures. The volume of gas adsorbed is measured and used to construct an adsorption isotherm. From this isotherm, the BET equation is applied to determine the specific surface area of the material.
Our Pore Size Distribution Test Services
LabAlliance offers comprehensive BET testing services, including:
- Surface Area Measurement
- Porosity Calculation
- Adsorption Isotherm Analysis
- Instrumentation and Training
Standards Used for BET Surface Area Testing
We adhere to the ISO 9277 standard for BET testing, which outlines the methods for determining the specific surface area of solids by gas adsorption. This ensures that our testing procedures meet international quality and reliability benchmarks. Our approach provides you with precise and consistent results.
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What We Offer
Material Characterization Testing
- Particle Size Distribution
- Particle Count
- Nanoparticle Size
- B.E.T. Surface Area
- Pore Size Distribution
- Micropore Analysis
- Pore Volume Distribution
- Chemisorption (TPR, TPD, TPO)
- Special Gas Adsorption
- Total Pore Volume
- Density
- Zeta Potential
- Contact Angle
- Surface Tension
- Chromatography Separation Analysis –HPLC or GC
- Gas Chromatograph-Mass Spectrometer GCMS Analysis
- Protective Material Permeation Analysis of solvents/liquids
Additional Information
- Volume Discounts: For services requiring more that 5 samples per submission volume discounts are available upon request.
- Fast Turn Around Service: Typical analysis can turn-around within 2 weeks. For expedited analysis (2-4 days) a surcharge of 100% will be applied.
- Contract Service: For long term analysis services a contract service rate is available. Please contact us for details.
- All orders are subjected to LabAlliance Sdn Bhd Services Terms and Conditions. Unless otherwise requested all samples with be retained for 1 month. If requested samples can be returned at customer’s expense. All sample results will be maintained for 1 year. LabAlliance adheres to strict confidentiality on sample details and customer information.
