We offer analytical, RM - reference and CRM - certified reference materials used in laboratories in all industries.
All products meet the requirements of I50-17025 and I50-17034. We are ready to offer you more than 11000 samples from more than 100 manufacturers from all over the world. (EDQM, USP, Fapas, Muva, Sigma Aldrich, HPC GmbH, Pharmaffiliates, etc.)
Professional experience in the supply of certified reference materials in the field of environmental, food, pharmaceutical, geological and industrial testing.

Membrane filters (membranes) are microporous films with a given pore size. The membranes retain particles or microorganisms that are larger than the pore size of the membrane itself. They act as a physical barrier, trapping such particles and keeping them on their surface.

Membrane filters are widely used for laboratory, chemical and microbiological analyses.

A syringe filter is a system that is a round membrane made of a material applicable to your technology (MCE, NY, PES, CA, RC, PTFE, PVDF), firmly fixed in a disk-shaped polypropylene housing, along the axis of which there are standard connections of the Female Luer Lock type - syringe tips on one side and Male Luer Slip on the other.
The range of application of syringe nozzles is quite wide - for example, analytical chemistry (purification of solutions from mechanical impurities, preparation of HPLC samples), microbiology (sterilizing filtration of small volumes of nutrient media, filtration of protein solutions), scientific research.
The filters are supplied both non-sterile and pre-sterilized with gamma irradiation.

Greyhound supplies scientists working in all disciplines, including HPLC and gas chromatography. Greyhound Chromatography is the leading source for chromatographic products and chemical standards anywhere in the world.