Matrix Blanks and Standardization Solutions

Phenol Standard, 1000 ppm C₆H₅OH (0.100% (w/w)), Ricca Chemical

CAS: 108-95-2 Molecular Formula: C6H6O Molecular Weight (g/mol): 94.11 MDL Number: MFCD00002143 InChI Key: ISWSIDIOOBJBQZ-UHFFFAOYSA-N PubChem CID: 996 ChEBI: CHEBI:15882 IUPAC Name: phenol SMILES: OC1=CC=CC=C1

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Thiocyanate Standard Solution (0.1N (N/10)/Certified), Fisher Chemical

CAS: 333-20-0 Molecular Formula: CKNS Molecular Weight (g/mol): 97.176 MDL Number: MFCD00011413 InChI Key: ZNNZYHKDIALBAK-UHFFFAOYSA-M Synonym: Potassium Thiocyanate Solutions PubChem CID: 516872 ChEBI: CHEBI:30951 IUPAC Name: potassium;thiocyanate SMILES: C(#N)[S-].[K+]

Hydrazine, standard solution, Specpure™, N2H4 100μg/mL

MDL Number: MFCD00011417

Iodide, Ion chromatography standard solution, Specpure™ I∣- 1000μg/mL

MDL Number: MFCD00011355

Potassium chloride, 0.007M, Conductivity Standard

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 SMILES: [Cl-].[K+]

Sulfuric acid, 3.0N Standardized Solution

CAS: 7664-93-9 Molecular Formula: H2O4S Molecular Weight (g/mol): 98.07 MDL Number: MFCD00064589 InChI Key: QAOWNCQODCNURD-UHFFFAOYSA-N PubChem CID: 1118 ChEBI: CHEBI:26836 IUPAC Name: sulfuric acid SMILES: OS(O)(=O)=O

Residual Solvents Class 1 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.

Diesel in Soil - 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.

VOAs in Soil - Medium Level - 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.

Turbidity - Whole Volume - 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.

Matrix oil, 20 centistoke hydrocarbon oil, Thermo Scientific Chemicals

CAS: 64742-65-0 MDL Number: MFCD00147539

Tellurium, plasma standard solution, Specpure™ Te 1000μg/mL

Molecular Formula: Te in 5% HNO₃ MDL Number: MFCD00134062

ICP-MS Internal Standard solution, Specpure™

Antibacterials - IR Identification 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.

Residue Sample 2, MilliporeSigma™ Supelco™

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.