Joshua Zwetsloot

Septa Seletion Guide for Chromatography

Choosing the right septa for your testing is important to prevent contamination, avoid damage and to allow high levels of repeatability. Ensuring compatibility with your instruments, compounds and solvents is an integral part of this. There are many different materials used to produce the septa found in Ion (IC), Liquid (LC) and Gas (GC) chromatography …

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The Ultimate Guide to Polypropylene

Polypropylene is a thermoplastic polymer used widely in labware. It belongs to the group of polyolefins and is partially crystalline and non-polar. Polypropylene’s chemical structure is similar to polyethylene, but each unit of the chain has a methyl group attached. It’s slightly harder and more heat resistant than polyethylene, and offers the best stress-crack resitance …

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