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The measurement that was missing

We make adsorption visible.

We weigh how much a porous material takes up and lets go, on the solid itself, while it works in the liquid. No subtracting one solution reading from another.

Book a sorption study See how it works

The standard method

Measure the liquid, then infer the solid.

A number you act on but never actually read.

With Sorpmetrics

Now

We read the solid directly.

Measured on the material itself, live in the working liquid.

Backed by 9 peer-reviewed papers

The Sorpmetrics measurement device — a porous material suspended in liquid, weighed as it captures and releases

The problem, first

The number you care about is on the solid. Today it is only ever guessed.

Adsorption is judged by what disappears from the liquid — read it before, read it after, subtract, and infer the solid. The material you actually bought never goes on a balance.

The indirect method, frozen: the liquid is read twice, the solid stays a question mark.

The journey, in words

From the guess to a direct reading on your material.

01
Sorpmetrics · Sorpmetrics
We make adsorption visible.
The whole point of a porous material is what it holds — so we made that holding something you can watch and weigh.
02
The problem · The standard method · today
Your whole process rests on one number.
Capacity, release, how long it lasts — every decision rides on how much the solid holds. Here is how the industry measures it today: read the liquid first — 50 mg/L.
03
The problem · The standard method · step two
Add the solid. The liquid drops.
The porous material soaks molecules up — 16 mg/L now — but the solid itself never goes on a balance.
04
The problem · The standard method · the catch
Subtract the two, and call it the answer.
50 − 16 = 34 — but only inferred. The number you act on is a difference of two liquid reads, never a reading of the material. It is only ever approximate.
05
The flip · Measured, not inferred
Weigh the solid itself.
The porous solid floats in the working liquid, suspended from a probe that reads its mass live — +12.842 µg, straight off the solid. The first number that isn't a guess.
06
The flip · Our method
This is how we do it.
Magnetic buoyancy weighs the working material live, in the liquid that matters — directly. We read the solid, so the solid answers.
07
Method · The sample
A solute, in a liquid solution.
We begin with the solute in solution; some of it has a low solubility and accumulates at the bottom.
08
Method · The adsorbent
Add a porous material.
Zeolite, MOF, activated carbon, silica gel — any porous solid. We weigh it directly.
09
Method · The method
Weighed live.
The solid is in, and the balance reads live — now watch the mass it captures.
10
Method · Step 01 · Adsorption
Uptake, measured.
Dissolved solute migrates into the pores; the rising curve is the mass held on the solid.
11
Method · Step 01 · Capacity
Maximum capacity.
The pores saturate and the curve plateaus — the maximum uptake per gram.
12
Method · Step 02 · Desorption
Controlled release.
Shift the conditions and the solute returns to solution. The solid is unharmed.
13
Method · Step 02 · Reversibility
Fully reversible.
Restore the conditions and it re-adsorbs to the same capacity.
14
Method · Step 03 · Degradation
Now introduce acid.
Acid — or any change in conditions: pH, temperature, solvent, concentration.
15
Method · Step 03 · Degradation
The framework gives way.
It breaks down and leaches — and, unlike desorption, this loss is irreversible.
16
Outcome · The full run
Now read every rate.
The same direct read on the solid gives capacity, and the slopes give the rates.
17
Outcome · Measurement 01
Adsorption rate.
How fast it takes up solute — the slope of the rise.
18
Outcome · Measurement 02
Desorption rate.
How fast it releases on the way back down.
19
Outcome · Measurement 03
Degradation rate.
The irreversible slope under acid — and the residual that survives.
20
Outcome · A menu of studies
Change a condition, run the study again.
Capacity now; isotherms, release kinetics, cycling and mixture co-loading — each as their own study, on your material.

The Sorpmetrics measurement device that weighs the solid in the liquid.

Where we unlock discovery

One blind spot, shared by every field built on porous materials.

Drug uptake & release

Pharma carriers

Measure drug uptake and release directly on the carrier in liquid, no guesswork.

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Real working conditions

CO₂ capture (wet)

Rank wet CO₂ sorbents under actual working conditions, not dry data that lies.

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MOF & porous-material screening

Academic labs

Screen MOF libraries at R²>0.998, one calibration per material.

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Batch certification

Water & PFAS

Certify incoming sorbent batches for real-world pollutant uptake.

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Rank a library, directly

High-throughput discovery

Rank a library against your analyte, one calibration per material.

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Filler uptake

Membranes

Certify membrane fillers on how much each species loads in the working mixture.

Explore

Wet-condition certification

DAC coating QC

Certify DAC coatings under wet conditions; your dry datasheet is likely wrong.

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The outcome

Numbers your team can stand behind.

Calibrate a material once, then run any analyte against it. Every figure is read off the solid, with the papers to back it.

R²>0.998

Fit quality

Signal tracks adsorbed mass linearly on commercial MOFs.

22.3 wt%

CO₂ from water

That +5.2 wt% gap is the CO₂ on the solid the conventional gravimetric method under-reads, because it weighs the system from the outside and never looks inside the material. It is one proof-of-mechanism result on our reference Cu₆Cr SMOF: evidence about measurement accuracy, not a guarantee of capacity in any particular material or application.

9 papers

Peer-reviewed

Co-authored by our CTO with the UPV/EHU group, backing the method in print.

Capabilities

One readout, eight ways to use it.

See all capabilities

Single capacity

Library screening

Isotherm mapping

Cycling stability

Release kinetics

Mixture identity

Adsorption & desorption profiles

Pick a study. Watch the read take shape.

Five ways we read the loading directly on the solid, in the working liquid. Choose a mode to see its characteristic profile, the device it runs on, and the minimum material we need to load — then add the studies you want and book them together. Every curve here is illustrative, not client data.

Illustrative — not client dataHover to read values

Equilibrium loading

≈ 18.6 wt% at the plateau

The loading read directly on the solid in your working liquid as it climbs to equilibrium — not inferred from the liquid by difference. One material, one analyte. Real numbers come from your samples after a feasibility check.

Device: PMC-1EMC-2DC-10000
Mass: At least 15 mg on the PMC-1 / EMC-2, or 50 mg on the DC-10000 (50–200 mg). A device spec, not an analyte limit of detection.

Your booking

Add the studies you want above — book one, or several together, in one trip.

Book this study

How we start

A feasibility check, then a use case defined with you.

Start a feasibility check

1Send 3–5 samples
2We run direct liquid-phase tests
3You get loading / release + ranking
4Together we define the use case

Ready when you are

Send us a few samples. We will show you what is on the solid.

Start with a feasibility check — we confirm the fit and define the use case with you.

Book a sorption study Talk to the lab