Reference Materials by
Sample Matrix
Find Reference Materials (RM), Certified Reference Materials (CRM), calibration standards and analytical standards based on the actual sample matrix — including ores, soil, water, metals, petroleum, food and other industrial materials.
Find standards around
the sample you actually test.
Choose the matrix that most closely represents your laboratory sample to explore relevant CRM, RM, calibration standards and supporting manufacturers.
Ore & Mining
Certified Reference Materials for mining, ores, precious metals, base metals, geological samples, grade control and geochemical analysis.
Related ManufacturersWater & Wastewater
Reference standards for drinking water, wastewater, environmental analysis, heavy metals, nutrients, contaminants and compliance testing.
Related ManufacturersPetroleum & Oil
Standards for sulfur, wear metals, lubricants, fuels, petroleum products and analytical quality control in oil-testing laboratories.
Related ManufacturersMetals & Alloys
Metal and alloy CRMs for composition analysis, OES, XRF, PMI, foundry control, grade verification and industrial QA/QC.
Related ManufacturersSoil & Environmental
CRMs for soil, sediment, environmental testing, elemental contamination, geochemistry and method-validation applications.
Related ManufacturersFood & Agriculture
Reference standards for food safety, pesticides, contaminants, residues, nutrients, composition and agricultural testing.
Related ManufacturersThe same analyte can behave differently in different sample matrices.
Reference-material selection is not only about finding the correct element or compound. Matrix composition, physical form, preparation route and analytical technique can all influence measurement response and the technical suitability of a CRM or reference standard.
Matrix composition can affect analytical response.
Metals, ores, soils, water and petroleum can behave very differently even when the target analyte is the same.
Solid, liquid and powder materials require different approaches.
Material form can influence preparation, calibration strategy and how closely a reference material represents the sample.
Sample preparation changes the analytical system.
Digestion, dilution, grinding, fusion, filtration and other preparation steps influence how the standard is selected and used.
The quality objective determines the level of matching required.
Calibration, validation, routine QC and verification may need different reference-material characteristics and documentation.
Sample matrix is the starting point — then the technical requirement becomes more specific.
Once the matrix is known, the correct reference material is refined using the target analyte, concentration range, analytical technique, method and quality objective.
Ore, metal, water, wastewater, petroleum, soil, food or another real sample type.
Element, compound, contaminant, residue, nutrient or another analytical target.
The certified value, calibration range or measurement level required by the application.
ICP, ICP-MS, XRF, OES, AA, GC, HPLC or another measurement technique.
ASTM, ISO, EPA, USP, AOAC, internal method and the associated sample-preparation route.
Calibration, validation, QC, verification, proficiency testing or audit support.
Frequently asked questions about
reference materials by sample matrix.
Matrix-based navigation helps narrow the search, but final suitability still depends on the complete analytical requirement.
Why is sample matrix important when selecting a CRM?
The matrix can influence analytical response, sample preparation, calibration behavior and how well the reference material represents the real sample.
Can I use a CRM from a different matrix if the analyte is the same?
Sometimes, but not automatically. The suitability depends on the method, technique, concentration range, matrix effect and intended use.
What information should I provide if I need help finding a matrix-matched CRM?
Useful information includes sample type, target analytes, concentration range, analytical method, instrument technique, preparation route and quality objective.
What if no catalog CRM matches my sample matrix?
Alpha Prime Lab can help search alternative manufacturers and, where appropriate, evaluate matrix-matched or custom-reference-material options.
Tell us what your sample is and what you need to measure.
Send us your sample matrix, target analytes, concentration range, analytical method, instrument technique and quality objective. Alpha Prime Lab can help identify suitable Reference Materials, CRM, calibration standards or custom standards for your workflow.