This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST.
Certified content incl. uncertainty and expiry date are given on the label.
Download your certificate at: http://www.sigma-aldrich.com.
Zinc standard may be used as standard in acetylene–air flame AAS (Atomic Absorption Spectrophotometer) for determining the cadmium and zinc metal concentration from moss sample solutions.
1000 mg/L Zn in 2% nitric acid, prepared with high purity Zn metal, HNO3 and water
For a complete product listing of our TraceCERT range of CRMs for ICP and AAS, technical information and example certificates please visit our inorganic TraceCERT website
TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC