CPAchem is a Bulgarian-French company founded in 2001. It specializes in the production of certified analytical reference materials and standard solutions for various analytical techniques such as AAS, ICP, ICP/MS, and IC. The company also offers solutions and substances for GC, GC/MS, LC, and LC/MS, as well as high-quality pharmaceutical reagents. CPAchem is certified according to ISO 9001, ISO 17034, and ISO 17025, highlighting its commitment to providing top-quality products and services.