Matrix Blanks and Standardization Solutions

Sodium, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 MDL Number: MFCD00003477 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium chloride SMILES: [Na+].[Cl-]

Antimony, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 10025-91-9 Molecular Formula: Cl3Sb Molecular Weight (g/mol): 228.11 MDL Number: MFCD00011212 InChI Key: FAPDDOBMIUGHIN-UHFFFAOYSA-K PubChem CID: 24814 ChEBI: CHEBI:74856 IUPAC Name: antimony(3+) trichloride SMILES: [Cl-].[Cl-].[Cl-].[Sb+3]

Fisher Scientific Arsenic, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical

Calcium, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 471-34-1 Molecular Formula: CCaO3 Molecular Weight (g/mol): 100.09 MDL Number: MFCD00010906 InChI Key: VTYYLEPIZMXCLO-UHFFFAOYSA-L PubChem CID: 10112 ChEBI: CHEBI:3311 IUPAC Name: calcium carbonate SMILES: [Ca++].[O-]C([O-])=O

Chromium, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 7778-50-9 Molecular Formula: Cr2K2O7 Molecular Weight (g/mol): 294.182 MDL Number: MFCD00010944 InChI Key: KMUONIBRACKNSN-UHFFFAOYSA-N PubChem CID: 24502 ChEBI: CHEBI:53444 IUPAC Name: dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium SMILES: [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]

Fisher Scientific Cobalt, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 10026-22-9 Molecular Formula: CoH12N2O12 Molecular Weight (g/mol): 291.03 MDL Number: MFCD00149647 InChI Key: QGUAJWGNOXCYJF-UHFFFAOYSA-N PubChem CID: 24821 ChEBI: CHEBI:86214 IUPAC Name: λ²-cobalt(2+) hexahydrate dinitrate SMILES: O.O.O.O.O.O.[Co++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

Iron, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 7782-61-8 Molecular Formula: FeH18N3O18 Molecular Weight (g/mol): 403.99 MDL Number: MFCD00149708 InChI Key: SZQUEWJRBJDHSM-UHFFFAOYSA-N PubChem CID: 16211566 IUPAC Name: iron(3+) nonahydrate trinitrate SMILES: O.O.O.O.O.O.O.O.O.[Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O

Lead, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 10099-74-8 Molecular Formula: N2O6Pb Molecular Weight (g/mol): 331.20 MDL Number: MFCD00011153 InChI Key: RLJMLMKIBZAXJO-UHFFFAOYSA-N PubChem CID: 24924 ChEBI: CHEBI:37187 IUPAC Name: λ²-lead(2+) dinitrate SMILES: [Pb++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

Fisher Scientific Potassium, Reference Standard Solution (1000ppm ±1%/Certified), Fisher Chemical™

CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M PubChem CID: 4873 ChEBI: CHEBI:32588 IUPAC Name: potassium chloride SMILES: [Cl-].[K+]

Trace Metals - WS (Whole Volume) Sample 2, MilliporeSigma™ Supelco™

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.

Phenolics in Soil (TOX) - PT, MilliporeSigma™ Supelco™

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.

Dissolved Oxygen - WS, MilliporeSigma™ Supelco™

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.

Minerals - WP, MilliporeSigma™ Supelco™

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.

AQUA™ Peptide AGGPAGGGAPLLSDLSQRPAA[R], MilliporeSigma™ Supelco™

Total Residual Chlorine (Low Level) - WP, MilliporeSigma™ Supelco™

This proficiency testing sample is produced in accordance with ISO/IEC 17043:2010. All information regarding the use of this material can be found in the reporting packet supplied for each sample.