Stable isotope technology

Trace the origin,
verify the source,
trust the process.

IsotopiX turns isotope and geochemical fingerprints into evidence you can act on. We work at the point where a concentration measurement stops being enough and the real question becomes where a signal came from, how it moved, and whether two signals share a source.

Peer-reviewed methods. Tailored to each site and matrix. Reports built to be defended.

From complex samples to clear decisions Multi-element isotope fingerprinting across environmental and industrial matrices.
Environmental forensics Identify contaminant sources and transfer processes in water, soils and sediments.
Industrial traceability Verify material origin and strengthen supply chain transparency.
Critical materials Support due diligence for metals, minerals and strategic raw materials.
Scientific expertise Turn advanced isotope methods into operational recommendations.
7+ Peer-reviewed publications
12+ Isotope systems
3 Partner institutions

What we solve

When origin matters, conventional chemistry is not always enough.

A concentration tells you that a problem exists. An isotope fingerprint tells you where it came from, how it travelled, and whether separate signals point back to the same source.

Source identification

Separate natural background, industrial inputs, mining legacies and urban signals using targeted isotope systems and multi-element geochemical tracers.

Origin verification

Build defensible isotopic fingerprints to compare materials, authenticate provenance and document supply chain claims with quantitative evidence.

Decision support

Deliver clear reports that connect analytical results to operational choices, regulatory obligations and stakeholder communication needs.

Application fields

A deep-tech approach for environmental and industrial traceability.

IsotopiX works at the intersection of isotope geochemistry, environmental science and applied traceability, with protocols tailored to each client's constraints and goals.

CRM

Critical raw materials

Trace strategic metals, support responsible sourcing and document material origin across complex industrial supply chains.

Industry

Material provenance

Apply isotope fingerprints to metals, minerals, wood, luxury goods, certified products and archaeological or heritage materials.

Environment

Polluted sites and soils

Differentiate contamination sources and clarify transfer pathways to guide remediation strategies and site liability management.

Institutions

Public research support

Design robust analytical strategies for public organisations, research labs and international projects that need defensible evidence.

Analytical backbone

High-precision measurements, connected to real-world questions.

We combine laboratory expertise, geochemical interpretation and tailored reference datasets to turn complex analytical signals into evidence that can be discussed, defended and acted upon.

MC-ICP-MS and IRMS Source apportionment Isotope fractionation Traceability reports

How we work

From a sample question to actionable evidence.

Every project starts from a precise decision question. The analytical strategy is then built around the isotope systems and reference materials that can genuinely answer it.

1

Frame the decision question

We define precisely what needs to be traced, compared or verified, and what level of certainty the outcome requires.

2

Select the isotope systems

We choose the tracers and geochemical indicators that are most discriminating for the specific matrix and source configuration.

3

Acquire the isotopic fingerprint

Samples are processed and measured with appropriate protocols, matched against reference databases and interpreted geochemically.

4

Deliver clear interpretation & recommendations

Results are presented in reports written for technical teams and decision-makers alike, with clear statements on what the data do and do not show.

Field study

Two sources, one lake, told apart by isotopes.

In Oruro, Bolivia, acid mine drainage and a metal smelter send antimony into the same lake, in amounts too close to tell apart. Antimony isotopes separate the two, and weigh how much each one contributes as that balance shifts through the year.

Dissolved antimony isotopes, Oruro Dry (2021) Wet (2019) Smelter & background Mine drainage Lake Uru-Uru ≈ +0.3 ‰ +0.4 to +0.7 ‰ 0 0.2 0.4 0.6 0.8 1.0 δ 123 Sb (‰) lighter heavier seasonal swing
Each point is a measured value; its place on the axis is its signature. Data: Ferrari et al. (2025).

On its own, a concentration says how much antimony is present, not where it came from. Being able to name the source, and to put a number on each one's share, is usually what a decision rests on: which operator answers for which part of the problem, whether a site is still taking in pollution or slowly clearing by itself, and whether remediation would change anything. Oruro is one case. The same reading applies wherever several sources overlap and the real question is which one to act on.

Read the paper

Why IsotopiX

Scientific depth with a consulting mindset.

The goal is not to produce more data. It is to produce a stronger interpretation, one that technical teams, decision makers and institutional partners can actually use.

Advanced isotope expertise

Methods grounded in peer-reviewed isotope geochemistry, environmental tracing and quantitative source apportionment, with a publication record to back them up.

Tailored analytical strategies

No generic package. The protocol is adapted to the question, the sample matrix, the budget and the level of evidential certainty required.

Readable technical outputs

Reports explain what the data show, what stays uncertain, and what can be decided, without hiding behind jargon.

A bridge between research and industry

Scientific rigour converted into operational tools, for environmental consultancies, industrial actors, forensic teams and public institutions.

Scientific record

Grounded in peer-reviewed research.

Our methods are not proprietary black boxes. They rest on published science, open to scrutiny, and kept current with the latest advances in isotope geochemistry.

Antimony isotopes Aquatic environments

Stable isotopes of antimony for tracing pollution sources and transfer processes in aquatic environments

A systematic review of Sb isotope systematics applied to contaminated watersheds, showing the diagnostic power of non-traditional isotope systems for emerging pollutants.

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Multi-isotope Mining legacy

Multi-isotope Pb and Sb approach to trace metallic contaminant sources at a historical mining and metallurgical site

A combined lead and antimony isotope study that resolves overlapping contamination signals at a complex industrial-legacy site.

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Isotope fractionation Mine waters

Antimony isotope fractionation during Sb(V) and Sb(III) adsorption on secondary Fe-minerals

Laboratory study quantifying Sb isotope fractionation on schwertmannite and ferrihydrite, key data for reading field signatures in mine-impacted systems.

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C and N isotopes Lake Titicaca

Anthropogenic eutrophication of Lake Titicaca revealed by carbon and nitrogen stable isotope fingerprinting

Carbon and nitrogen isotopes measured across four compartments of Lake Titicaca show how anthropogenic discharge reshapes isotopic baselines at the ecosystem scale.

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Common questions

What clients ask before they start.

If your question is not here, describe your case and we will tell you plainly whether isotopes can answer it.

Start a project

Need to prove where a signal comes from?

Tell us what you need to trace, compare or verify. We will help you define the right isotope strategy and the clearest route to usable evidence, at the right scale and budget.

  • A first reply within two working days.
  • A feasibility view before any commitment.
  • Confidential handling of your case.

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