Analysis
BET Surface Area and Porosity Analysis
Gas adsorption analysis to determine BET specific surface area, pore volume and pore size distribution of powders and porous solids.
In short
Gas adsorption analysis to determine BET specific surface area, pore volume and pore size distribution of powders and porous solids. BET surface area and porosity analysis is performed on a MicrotracBEL BELSORP MINI X gas adsorption analyser with a BELPREP VAC III degassing unit.
BET surface area and porosity analysis is performed on a MicrotracBEL BELSORP MINI X gas adsorption analyser with a BELPREP VAC III degassing unit. After outgassing under vacuum at a controlled temperature, a nitrogen adsorption–desorption isotherm is recorded at liquid nitrogen temperature. Specific surface area is calculated by the BET method, mesopore size distribution by BJH analysis, micropore volume by the t-plot method and total pore volume from the isotherm. The service answers whether surface area values governing catalyst or adsorbent activity are as expected, how milling or calcination has altered the pore structure, how synthesis batches compare and whether a product meets its specification. It serves manufacturers of catalysts, activated carbons, zeolites, ceramic powders, battery electrode materials, pharmaceutical excipients and nanomaterials, and academic groups.
What you receive
Nitrogen adsorption–desorption isotherm plot and data table
BET specific surface area (m²/g) with BET linear range and correlation coefficient
BJH pore size distribution, t-plot micropore volume and total pore volume
Method summary covering degassing temperature/time and sample mass
Raw data (CSV) and PDF report
How it works
Request and scoping
Material type, expected surface area range, thermal stability and required outputs (BET, BJH, t-plot) are agreed; degassing conditions are planned.
Sample reception and preparation
The sample is logged, weighed to an appropriate mass and outgassed under vacuum at the specified temperature in the BELPREP VAC III unit.
Measurement
The nitrogen adsorption–desorption isotherm is recorded at 77 K over the selected relative pressure range with equilibrium criteria satisfied.
Reporting
Results are presented in the standard analysis report; supporting technical documentation is shared on request.
Pricing
€220
per sample
| 1+ | €220 |
| 5+ | €198 |
| 10+ | €176 |
Lead time 3–7 business days
Final pricing depends on sample count, preparation and reporting scope. You receive an itemised proposal.
Prices are a guide and may change with any additional requests. Our team will contact you to confirm the scope and the final price.Request this service
Describe your sample and the decision it supports. We reply with a technical proposal.
Request analysisInstruments used
- BET Surface Area
- MicrotracBEL BELSORP MINI X / BELPREP VAC III
Questions
Frequently asked questions
How do I send samples for BET Surface Area and Porosity Analysis?
Fill in the analysis request form. Our team replies with preparation and shipping instructions for your sample type, and we confirm together that the sample is suitable before you send it.
How long does BET Surface Area and Porosity Analysis take?
It depends on the number of samples and laboratory workload. The estimated time on this page is a reference; once we review your request we share a firm schedule.
How is the price set?
The price on this page is a list price. It may change with the number of samples and any additional requests; after we agree the scope, the final price is shared in a proposal.
How do I receive the results?
Results are delivered as a written report. You can follow the status of your request in your account and through email notifications.
Can I request this from abroad?
Yes. We accept requests in Turkish, English, Arabic and Persian, and reply in the language you prefer.
Can I see your quality documents?
We develop our quality processes with reference to ISO/IEC 17025. For the current documents and scope details, contact us and we will send them in writing.
Instruments used
Particle and surface characterization
MicrotracBEL BELSORP MINI X Gas Adsorption (BET) Analyser with BELPREP VAC III Degassing Unit
Determination of BET specific surface area, pore volume and pore size distribution of powders and porous materials from gas adsorption isotherms.
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Further reading
Characterization
BET Surface Area and Porosity: Degassing and Reading Isotherms
The reliability of a BET result is decided before the sample reaches the instrument. A practical guide to degassing, sample amount, isotherm types and the mistakes that most often spoil a measurement.
November 9, 20266 min read
Request this service
Describe your sample and the decision it supports. We reply with a technical proposal.