Monthly Archives: August 2017

13mm, 25mm, 47mm, and 90mm – These were the available diameters of various glass filter funnels available suitable for use with membrane disc filters; until now.

Sterlitech is proud to announce the launch of a new larger 150 mm diameter All-Glass Filter Assembly with a 10 liter receiver flask for processing significantly higher volumes in a single holder! Borosilicate glass filter funnels are ideal tools for use in laboratory and bench-scale filtration as they have very good chemical resistance against solvents, caustics, and most acids. When paired with the right membrane disc filter, they find a place in almost any microfiltration application area.

The 150mm All-Glass assembly comes after a year of development work that originally centered on the filtering active compounds for cannabis applications in a process known as winterizing (cold filtering) extracts. The 90mm funnel

The chemically resistant and thermally stable polyether ether ketone (PEEK) membranes from Novamem Switzerland are now available with 5nm pore size rating. The membranes are available as 25mm disks, 47mm disks, and 10x10cm coupons. They are also available as CF016, CF042, and Sepa cuts.

Material: PEEK
New Pore Size: 5nm

PEEK membrane applications:

• Dialyze monomers & polymers in solvents
• Degassing of harsh chemicals
• Membrane pervaporation & membrane distillation
• Battery separators & semiconductor applications
• Nanofiltration & gas separation with user’s specific coating

To learn more about the Novamem PEEK membranes, please review

Aquaporin hollow fiber membrane modules for forward osmosis studies are now available from Sterlitech. AQP HFFO2 is a cross flow membrane module containing Aquaporin Inside™ hollow fiber membranes. With an Aquaporin Inside™ coating on the interior surface of the hollow fibers (lumen side), the feed solution is circulated in the lumen and the draw solution is circulated in the shell.

The Aquaporin Inside™ technology is based on the aquaporin protein, nature's own selective and extremely effective water channel. Aquaporin water channels have been developed through billions of years of evolution, and are now ready to revolutionize industrial water treatment.

Forward osmosis (FO), also known as engineered osmosis, is a membrane separation process that takes advantage of the pressure gradient between two solutions of different concentrations to move the

In last October’s newsletter, Sterlitech announced the availability of kits for performing the Kato-Katz  analysis technique for Soil-Transmitted Helminthiasis (STH) in field-based applications, signifying the first time that these kits were available from a source in the United States. Prior to this, the efforts of research groups and health organizations could be hampered by limited availability. Recognizing the global health need, Sterlitech developed the kits to ensure a consistent and reliable supply. We are pleased to announce that, in less than a year, Sterlitech has already supplied enough Kato-Katz Kits to perform 87,000 diagnostic tests.

The Kato-Katz Kits are used to identify and enumerate parasitic eggs in feces samples from at-risk individual. The testing enables clinicians and field

Filtering organic solvents for applications such as HPLC buffer prep can be challenging in order to ensure chemical compatibility with filters (PVDF, Nylon, or PTFE), preserving longevity of an HPLC column, or containment of toxic fumes, but finding a suitable and comprehensive vacuum system is now easier than ever.

Sterlitech is now offering a comprehensive benchtop vacuum system, the Rocker-VF12 Kit, targeted to the purification of organic or corrosive liquids such as mobile phase solvents for HPLC analysis. Each kit comes complete with a PTFE-coated Rocker 300C Pump, silicone vacuum tubing, and a 300 mL capacity, 47 mm diameter glass filter funnel assembly connected directly to a GL45 waste bottle. The system