Description

Glass vacuum filtration devices
Glass vacuum filtration devices come in two general styles: glass filtration assemblies and glass filter funnels. Both styles use a clamp to hold the upper funnel to the lower base, tightly sealing the filter in between to prevent fluid bypass. Borosilicate glass provides chemical compatibility and smooth surfaces for thorough cleaning. Selection of filter support is influenced by the nature of the fluid being filtered. Low particulate and low viscosity fluids filter well through in integrated porous glass support while high particulate, viscous or aggressive solvents may require a removable glass or stainless steel frit to allow for more aggressive cleaning procedures and/or better chemical compatibility.

Glass filtration assemblies
Glass filtration assemblies are designed in three pieces: upper funnel, lower base, and flask.
Ideal for mobile phase filtration for analytical chemistry applications
Selected for chemistry applications requiring minimized contact with multiple materials of construction
Filter directly into a glass flask that can be removed and covered for analysis of filtrate, or retrieve filter for analysis of particulate collected
Can be used for microbiological analysis by membrane filter (MF) technique
Glass filter funnels
Filter funnels are designed in two pieces: upper funnel and lower base with stopper.
Suitable for microbiological analysis by MF technique of water, beverages, pharmaceuticals, and personal care products.
Versatile design allows individual filtration using a traditional side-arm Erlenmeyer flask or installation into a traditional 3- or 6-place manifold systems
Variety of funnel sizes and membrane diameters to suit a range of applications from particulate and residue analysis to precipitation and biochemical studies