Quality Control and Proficiency Samples

QC Standard 21 For Environmental Analysis, SPEX CertiPrep™ Available on GSA/VA Contract for Federal Government customers only.

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

QC Standard 7 For Environmental Analysis, SPEX CertiPrep™ Available on GSA/VA Contract for Federal Government customers only.

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

QC Standard 21 For ICP/MS, SPEX CertiPrep™ Available on GSA/VA Contract for Federal Government customers only.

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

QC Standard 21, 100 ppm: As, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn, Verispec™, Ricca Chemical

CAS: 7697-37-2 Molecular Formula: HNO3 Molecular Weight (g/mol): 63.012 InChI Key: GRYLNZFGIOXLOG-UHFFFAOYSA-N PubChem CID: 944 ChEBI: CHEBI:48107 IUPAC Name: nitric acid SMILES: [N+](=O)(O)[O-]

Quality Control Standard 21, Ricca Chemical

ICP Quality Control Standard

QC Standard 7A For Environmental Analysis, SPEX CertiPrep™ Available on GSA/VA Contract for Federal Government customers only.

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Quality Control Standards 23 For ICP, SPEX CertiPrep™ Available on GSA/VA Contract for Federal Government customers only.

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Quality Control Standards 21 For ICP, SPEX CertiPrep™ Available on GSA/VA Contract for Federal Government customers only.

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

International Stock Standard Mixture (2 components), Restek&trade

CAS: 8012-95-1 Molecular Formula: C15H11ClO7 Molecular Weight (g/mol): 338.696 InChI Key: FFNDMZIBVDSQFI-UHFFFAOYSA-N PubChem CID: 68245 ChEBI: CHEBI:38701 IUPAC Name: 2-(3,4,5-trihydroxyphenyl)chromenylium-3,5,7-triol;chloride SMILES: C1=C(C=C(C(=C1O)O)O)C2=C(C=C3C(=CC(=CC3=[O+]2)O)O)O.[Cl-]

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