Filtration Resources
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February 04, 2021
HPLC and solvent purification applications will often involve samples that contain a combination of solvents and acids that other vacuum pumps just can’t handle, making them prone to faster wear and tear. On top of that, labs also have to grapple with and spend money on time-consuming maintenance tasks such as regular oil changes to keep their vacuum pumps in good working condition.
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January 04, 2021
An overflow of liquid is unavoidable during vacuum filtration. However, this excess in liquid can potentially damage your vacuum pump’s motor and internal components as the overflow is sucked into the pump.
Sterlitech constantly aims to simplify your lab processes and provide innovative lab solutions, which is why we are proud to introduce a brand new line of filtration products featuring built-in Prote Overflow Protection.
Prote Overflow Protection prevents your vacuum pumps from damage caused by large amounts of liquid spilling out during your vacuum filtration applications. Not only does it protect your pump from liquid damage, but Prote Overflow Protection also prolongs the life of your vacuum pump.
Note: Vacuum pumps cannot be mounted sideways or upside down with the overflow protector.
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June 25, 2020
Sterlitech is offering 2 new space-saving, all-in-one vacuum suction systems from Lafil.
The Lafil series suctions system is a line of unique integrated suction systems that combines a vacuum source with a suction kit. Its compact design saves more bench space than other traditional ones. With a fence-like platform design, it can prevent a user from tipping over the suction bottle.
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April 13, 2020
Earth Day 2020, celebrated globally on April 22, is the 50 year anniversary of the UNESCO conference where Earth Day was first established. Earth Day developed to support environmental issues and promote world peace, and the theme for this year is climate action.
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March 11, 2020
Why Perform a Bubble Point Test?
In the bubble point test, pore size rating is determined by measuring the lowest air pressure needed to overcome the surface tension between the wetting liquid and the membrane pores in a fully wetted membrane. This pressure level, known as the bubble point, is signaled by the first appearance of a steady stream of bubbles observed from a special disc
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January 10, 2020
What is Membrane Distillation?
Membrane Distillation (MD) is a relatively new and promising separation technology that is an alternative to more energy intensive methods such as reverse osmosis or distillation. MD is a thermally driven process where only vapor molecules transfer through a hydrophobic (water repellent), microporous membrane.
A typical membrane distillation technique features a membrane filter sandwiched between cold solution on one side and hot solution on the other side. The driving force of the MD process is the partial vapor pressure difference induced by the temperature difference across the hydrophobic membrane. The vapor then condenses on the cold side to produce the distillate. -
June 04, 2019
Did you miss our webinar on microfiltration membranes? The webinar recording is now live, click on the video below. Our filtration experts discussed the characteristics and applications for membrane filters2, and answered any questions during the webinar.
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June 04, 2019
The Hydracell pump is a sealless positive displacement pump used to generate cross flow in our filtration systems equipped with cross flow test cells . The sealless design enables it to handle abrasives and particulates; the positive displacement design enables the pump to generate consistent flow rates regardless of the operating pressures up to 1100 psi (76 bar).
To ensure optimal performance of the pump over extended periods, observe the proper operation and conduct regular maintenance. Here are some of our tips for ensuring a reliable Hydracell pump.
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April 28, 2019
Total Suspended Solids (TSS) measurements quantify particles larger than 2 microns found in a water column. These can include inorganic compounds (gravel, sand, silt) or organics (algae, plankton, and decaying plant or animal matter). TSS contributes to the optical clarity or turbidity of water, but also includes solids that can settle at the bottom of a body of water.
Using standard EPA methods 2540C and 2540D, TSS can be quantified via gravimetric analysis1.2. A water sample is filtered through a pre-weighed glass fiber filter, capturing the solids larger than 2 um. Then, the filter is dried in an oven to remove remaining water and weighed again. The weight difference over the sample volume provides the TSS concentration in mg/L. An interesting technology advancement for TSS testing is offered in the