Quality Assurance in the Lab: Your Guide to Uni-Chem Certificates of Analysis (CoA)
The Uni-Chem Chemical Reagents Certificate of Analysis is a vital document that ensures the quality and reliability of their products. By providing a CoA, Uni-Chem demonstrates their commitment to transparency and accountability, allowing laboratory professionals to make informed decisions about the products they use. The CoA serves several purposes: uni-chem chemical reagents certificate of analysis
| Test | Specification | Result | Method | |------|--------------|--------|--------| | Assay (by titration/HPLC) | ≥ 98.0% | _______ | USP/Ph. Eur. | | Melting point | ___ – ___ °C | _______ | Capillary method | | pH (5% solution, 25°C) | ___ – ___ | _______ | Potentiometric | | Loss on drying | ≤ 0.5% | _______ | Gravimetric | | Residue on ignition (sulfated) | ≤ 0.1% | _______ | 600°C furnace | | Heavy metals (as Pb) | ≤ 10 ppm | _______ | ICP-OES/AAS | | Chloride (Cl) | ≤ 0.01% | _______ | Turbidimetric | | Sulfate (SO₄) | ≤ 0.01% | _______ | Turbidimetric | | Water content (K. Fischer) | ≤ 0.2% | _______ | Coulometric | Quality Assurance in the Lab: Your Guide to
Enter these, and the system generates the current CoA. Pro tip: Bookmark this link for your lab’s purchasing department. Pro tip: Bookmark this link for your lab’s