SPEX CertiPrep
Top Categories

Inorganic Standards
Find standards for Ion Chromatography (IC), Inductively-Coupled Plasma (ICP) and ICP-Mass Spectroscopy (ICP-MS).

Organic Standards
Find standards for Gas Chromatography (GC), GC-Mass Spectroscopy (GC-MS), High Performance Liquid Chromatography (HPLC) and HPLC-MS.

Save Time with Custom Standards
Create standards using the SPEX CertiPrep™ custom certified reference material program.
Featured Products
SPEX CertiPrep Heavy Metals and Minerals Testing Kits Flier
Shop kits that include SPEX CertiPrep standards and Fisher Chemical acids for heavy metals and minerals testing.
SPEX CertiPrep Industrial Hygiene Filters Flier
Shop matrix-matched standards designed for industrial hygiene and air monitoring programs.
Tired of Mixing Your Own Standards? Flier
Let SPEX CertiPrep save you time. Our chemists can design the most compatible standards for your lab.
Certified Reference Material Maker Flier
SPEX CertiPrep is an accredited reference material producer of organics, buffers and standards.
More Resources
Custom Organic and Inorganic Standards Flier
SPEX CertiPrep chemists can save you time by creating custom organic or inorganic standards that meet your specifications.
USP <232> and USP <233> Impurities Flier
Let SPEX CertiPrep inorganic reference materials keep your pharmaceutical lab USP-/ICH-compliant.
Fusion Fluxes and Additives Flier
Prepare oxides, sulfides, fluorides, feroalloys and other metals with no dust to clog your instruments.
- Fusion Fluxes and Additives Flier (914.2 KB)
SPEX Organics Pesticide Standards Flier
Over 2,000 different single-component standards or custom designs make pesticide testing easier.

About SPEX CertiPrep
Founded in 1954, SPEX CertiPrep is a leading manufacturer of certified reference materials (CRMs) and calibration standards for analytical spectroscopy and chromatography. It offers a full range of inorganic and organic CRMs. SPEX CertiPrep is certified by DQS to ISO 9001:2015 and accredited by A2LA to ISO/IEC 17025:2017 and ISO 17034:2016. The scope of its accreditation is the most comprehensive in the industry and encompasses all its manufactured products.