Notice of CommaPrep® Plasmid Maxiprep Columns

Dear Customer and Distributor:

Thank you for reading this notice.

To enhance user experience and facilitate technical support, we upgraded our products CommaPrep™ Plasmid Maxiprep Columns, NP500 and HP1000. The spin columns (inner tube) bottom side was changed from luer-outlet to grid design, and the membrane layers were optimized for higher yield.


  1. The replacement of the upgraded plasmid Maxiprep columns will last about 1 month, both old and new products will be shipped during this period.
  2. Please let us know whenever you meet any problem when you use the new products.

We sincerely appreciate all of your kind support, we will keep working on providing better products and satisfied services with continuous innovation.

Best wishes


About biocomma

Biocomma Limited, founded in 2006, is a leading manufacturer of filtration, sample preparation, oligo synthesis and nucleic acid purification products, based on its two technology platforms of porous plastic filters and separation materials. Biocomma is ISO9001:2015 certificated and a National High and New Tech Enterprise.

Biocomma owns one filter manufacturing facility, two assembly facility and one R & D center, supplying more than 1,500 products. For the past eleven years, we have served over 4,000 customers and provided OEM and customization services for dozens of well-known brands around the world.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.