30mm .45um Nylon syringe filters are commonly used for sample prep in our HPLC lab. We have used Xcel + brand from jsiscientific.com for over 10 years. I highly recommend these reliable syringe filters.
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Syringe Filters
October 7, 2008
Reviewer:
Tom Gilbert from Chicago, IL United States
Excel+ Nylon Syringe Filters from JSI are HPLC tested and free of extractables. And they are a good choice for routine HPLC clean up. WE LIKE THEM!
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Excel + Syringe Filters
April 30, 2008
Reviewer:
jim Kaye from Freehold, NJ United States
We use Excel+ Syringe Filters in our lab. Excel+ filters are a premium syringe filter. They are by far the best we have ever used. The 1um prefilter is an added value. The prefilter allows us to push the plunger through the syringe more easily. It also allows us to get more sample through and get more usage, which saves our company alot of money!
Syringe Filters jsiscientific.com 
