You searched for: Environmental Analysis Standards

Supplier: Merck

EPA 610 Polynuclear Aromatic Hydrocarbons Mixture, Supelco®, Certified reference material, in methanol: methylene chloride (1:1) (varied), : 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: LGC Standards PROMOCHEM

This solution is intended for use as a quality control check for methods related to measurements of inorganic materials includes conductivity, alkalinity as CaCO₃, chloride, fluoride, nitrite and nitrate, sulphate, potassium, sodium, total dissolved solids and many more.

Supplier: Merck

EPA TCL Base/Neutrals Mix 1, Supelco®, Certified reference material, 2000 mug/mL each component in methylene chloride, : N/A

Supplier: Merck

SS TCL Polynuclear Aromatic Hydrocarbons Mix, Supelco®, Certified reference material, 2000 mug/mL each component in methylene chloride: benzene (1:1), : N/A

Supplier: Merck

Semivolatile Base/Neutrals Surrogate Spike Mix, Supelco®, Certified reference material, 5000 mug/mL each component in methylene chloride, : N/A

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended for use as an isotopic reference material for the calibration of mass spectrometers. The material consists of highly purified boric acid of high homogeneity.

Supplier: LGC Standards PROMOCHEM

River sediment - extractable metals, : N/A

Supplier: LGC Standards PROMOCHEM

White clover (trace elements), : N/A

Supplier: Merck

Clean Sand #4, Supelco®, : N/A

Supplier: LGC Standards PROMOCHEM

Soil, standard for available nutrients, Reference standard, : N/A

Supplier: LGC Standards PROMOCHEM

BOD calibration standard, 200 mg/l, : N/A, Matrix: H₂O

Supplier: LGC Standards PROMOCHEM

This reference standards are intended to use in the determination of trace elements in fresh water. The solution contains nitric acid at a volume fraction of approximately 2%, equivalent to an amount of substance concentration (molarity) of approximately 0,32 mol/l and also it simulates the elemental composition of fresh water.

Supplier: Merck

Clean Sandy Loam, Supelco®, : N/A

Supplier: Merck

Clean Loam Soil, Supelco®, : N/A

Supplier: Merck

VOAs in soil 2 - low level, Supelco®, : N/A

Supplier: Merck

Nonionic Surfactants, Supelco®, Certified reference material

Supplier: Merck

Trace Metals Kits - WS, Supelco®, : N/A

Supplier: Merck

TOC linearity set, Supelco®, : N/A

Supplier: Merck

Metals in Soil, Supelco®, Certified reference material, : N/A

Supplier: Merck

Herbicides I - WS, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

Nutrients - Clay Soil, Supelco®, : N/A, Pkg of 100 g

Supplier: Thermo Orion

Water hardness standard for ISE calibration, Orion™, 100 ppm CaCO₃, : N/A

Supplier: Merck

Low Level Total Phosphorus - QC, Supelco®, : N/A

Supplier: Merck

Low Level Anions - Whole Volume, Supelco®, : N/A

Supplier: Merck

Mercury on Filter Paper, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

Hardness calibration standard, Supelco®, Certified reference material, Calcium 1000 mg/l, : N/A

Supplier: LGC Standards PROMOCHEM

NIST-1646A, estuarine sediment - metals, : N/A

Supplier: Merck

Minerals, Supelco®, Certified reference material, : N/A

Supplier: LGC Standards PROMOCHEM

Hard drinking water UK low level metals, : N/A