Supplier: Merck

Residual Free Chlorine (RFC), Supelco®, Certified reference material

Supplier: Merck

Thiocyanate in Water - WP, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

TPH in Soil - Low - PT, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

TCLP Metals - Loam 1, Supelco®, Certified reference material, : N/A, Pkg of 225 g

Supplier: Merck

Diesel - Clay Loam 1, Supelco®, Certified reference material, : N/A, Pkg of 100 g

Supplier: Merck

Residue (Whole-Volume) - WP, Supelco®, Certified reference material, : N/A

Supplier: Merck

Lead Free Paint - Powdered, Supelco®, Certified reference material, : N/A, Pkg of 20 g

Supplier: Merck

Surfactant (MBAS) calibration standards, Supelco®, Certified reference material, 1000 mg/l, : N/A

Supplier: Merck

Dioxin and Furans in Soil - PT, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

Anions - Loamy Sand 1, Supelco®, Certified reference material, : N/A, Pkg of 50 g

Supplier: Merck

EDB/DBCP - WP (Low Level), Supelco®, Certified reference material, : N/A

Supplier: Merck

Demand - Whole Volume, Supelco®, : N/A, Matrix: H₂O

Supplier: Merck

Diquat/Glyphosate/Paraquat - WS, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

TOC standard, Supelco®, Analytical standard, 1000 ±10 mg/l

Supplier: Merck

STLC Metals CA-WET in Soil-PT, Supelco®, Proficiency Testing Material, : N/A

Supplier: LGC Standards PROMOCHEM

This standards reference material is intended to use in the determination of constituent elements in clay and material of similar matrix. These powdered clay was air-dried, ball-milled and blended to ensure homogeneity.

Supplier: Merck

Simple Nutrients in Seawater - Whole Volume - WP, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

TOC standard solution, Supelco®, 5,00 mg/L TOC, Matrix: H₂O, pH range: 4 - 6

Supplier: Merck

DDT-Endrin Mix, Supelco®, Certified reference material, 500 mug/mL each component in methanol, : N/A

Supplier: Merck

EPA 8270 Phenols Mix, Supelco®, Certified reference material, 2000 mug/mL each component in isopropanol, : N/A

Supplier: Merck

EPA 525 PAH Mix B, Supelco®, Certified reference material, 500 mug/mL each component in acetone, : N/A

Supplier: Merck

MISA Group 23 Chlorinated Hydrocarbon Mix, Supelco®, Analytical standard, 2000 mug/mL each component in dichloromethane, : N/A

Supplier: Merck

EPA 505/525 Update Pesticides Mix A, Supelco®, Certified reference material, 500 mug/mL each component in acetone, : N/A

Supplier: Merck

EPA CLP Semivolatile Calibration Mix, Supelco®, Certified reference material, 1000 mug/mL each component in dichloromethane : benzene (3:1), : N/A

Supplier: Merck

EPA 8270 Base/Neutrals Surrogate Spike Mix HC, Supelco®, Certified reference material, 5000 mug/mL each component in dichloromethane, : N/A

Supplier: Merck

The standard solutions offered below can be adjusted to a final concentration for the measurement range of a test system by dilution. In addition, these standards can be used to prepare spiking solutions for the standard addition procedure. They provide an economic and simple method of analytical quality control.

Supplier: Thermo Fisher Scientific

Hydroxylapatite for analysis

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended for use in the determination of constituent elements in clay and material of similar matrix. Powdered clay was air-dried, ball-milled and blended to ensure homogeneity.

Supplier: VWR Chemicals

Standard solution hydrazine, VWR®, 100 mg/l

Supplier: Thermo Fisher Scientific

For US EPA Clean Water Act.