A Guide To VacuumMembrane Filter Holder Assembly

Vacuum/Membrane filtration is one of the most commonly used procedures in several scientific experiments. This includes the collection of particulate such as bacteria, precipitation, etc. from a liquid suspension. The liquid is first poured into the funnel from where the liquid passes through the filter. The filter retains the particulate and the remaining filtrate can be collected in to the filter flask directly or through the vacuum manifold.

The vacuum filter can vary according to the total volume of liquid filtered. So let us get into specifics of common types of vacuum filter holders used in numerous procedures.

• 25mm Glass Microanalysis Holders
• They are used for filtering small volumes of particulate and biological contamination.
• They either come with stainless steel screen support or sintered glass base.
• They use stainless steel screen while producing ultraclean filtrates or filtering proteinaceous solutions.
• 47 mm Glass Microanalysis Holders
• For the microbiology and filtrate analysis, they are available in standard sizes.
• They can filter liquids up to 500 ml.
• They are available with stainless steel and sintered glass support.
• They come with PTFE flange to prevent the membrane from sticking to the glass.
• 90 mm Glass Microanalysis Holders
• They are suitable for larger filtration areas for filtering large volumes of liquids.
• They are mostly used for viscous samples with heavy particles or bioburden that are capable of clogging the 47 mm filter.
• They come with sintered glass or stainless steel support.

You can contact Pioneer Scientific Instrument Corporation to buy Membrane Filter Holder. Based in Kolkata, the company is a well-known Manufacturer, Exporter and Supplier of several products. Some of them include Membrane Filter Assembly Sintered Glass Buchner Funnel Sintered Filter Disc Viscometer Tubes Vacuum Pin Tube Sintered Laboratory Glassware, etc. For more information about the company and to send your enquiries, you can log on to www.piscolabglass.com