Testing services/Content testing

Target analyte content testing

Measure a defined target analyte using an agreed analytical strategy, suitable reference information, and a scope appropriate to the submitted matrix.

Suitable for

Approved raw materials, research compounds, supplements, cosmetic actives, and finished formulations where a defined target can be measured under a suitable method.

Typical output

Measured result with stated units, method and calculation summary, sample description, and project-specific limitations.

Service overview

Content testing is designed around a specific measurand, unit, matrix, expected range, and decision need. The project may require a reference standard, calibration model, recovery evaluation, dilution plan, or other scope-specific controls.

Feasibility is reviewed before acceptance because a method that performs adequately for a raw material may not be suitable for a capsule, liquid, blended powder, or finished formulation without additional evaluation.

Questions this service can address

The exact question is recorded before testing so the method and report remain tied to the intended scope.

  • How much of the defined target analyte was measured in the submitted sample under the agreed method?
  • What units and basis of calculation are appropriate for the material and intended comparison?
  • Is the available reference strategy suitable for the required level of measurement confidence?
  • Does the matrix require extraction, recovery, dilution, or interference work before routine measurement?

What shapes the scope

These details affect feasibility, method selection, sample requirements, interpretation, and pricing.

  • Target analyte, expected range, reporting units, and calculation basis
  • Matrix composition, serving or unit definition, sample homogeneity, and preparation needs
  • Reference standard identity, suitability, documentation, and availability
  • Calibration range, dilution plan, extraction approach, and potential matrix interference
  • Whether screening, method transfer, verification, or a custom development phase is needed

What to provide

More complete project information produces a more useful scope and reduces avoidable delays.

  • Target analyte and expected concentration or content range
  • Full sample description, lot or batch, matrix, and formulation information
  • Amount available and number of units when the sample is packaged or portioned
  • Desired units and the practical decision the result will support
  • Relevant specifications, prior methods, standards, or supporting documents

Typical deliverables

The accepted scope identifies the exact report, COA, chromatogram, calculation note, partner documentation, or other data package to be issued.

  • Accession and submitted-sample description
  • Measured target result with stated units and calculation basis
  • Summary of the method, reference, and preparation strategy used
  • Agreed supporting data or calculation notes
  • Observations, report status, revision, and applicable limitations

Important limitations

Results should be read with the method, sample description, report notes, and revision status.

A measured result applies only to the submitted sample and the sampling represented by that material; it does not establish uniformity across untested units or lots.

Reference quality, matrix effects, extraction behavior, homogeneity, and method performance can materially affect the result and must be addressed in scope review.

Content testing does not automatically establish identity, purity, stability, sterility, safety, regulatory compliance, or fitness for a particular use.

Ready to discuss this testing pathway?

Send the sample details and analytical question first. Do not ship until the project is accepted.

Request scope review