Whatman™ Cellulose Nitrate Membranes

Supplier: GE Healthcare - Whatman
Ratings: (No Reviews)

Total Ratings: 0
Avg. Ratings: 0.0 out of 5

7184-004 7184-014 7182-004 7184-009 7182-002 7184-002 7190-004 7193-004 7195-004 7181-004 7188-004 10400112 7182-009 10401312 10400106 7184-001 10401112 10400206 7193-002 7195-002 10402012 10400212 7195-009 10400012 10400214 10401106 10401114 10401118 10401121 10401314 10402014 10405079 7182-001 7184-005 7186-004 7188-003 7190-002 7191-005 7191-014 10400014 10400114 10401126 7182-014 7188-009 7181-002 7188-002
28159-547PK 210.9 USD
28159-547 28159-555 28159-570 28297-778 28454-042 28454-053 28454-079 28454-089 28454-097 28454-027 28159-585 11008-540 28297-764 28152-825 28152-832 28297-774 11008-546 28152-834 28454-084 28454-093 74300-256 89014-304 28297-802 28152-824 10034-874 10034-896 10034-898 10034-900 10034-902 10034-904 10034-930 10034-956 10035-534 10035-536 10035-538 10035-542 10035-544 10035-546 10035-548 10035-690 10035-692 10035-694 10147-928 10147-932 10147-926 10147-930
Whatman™ Cellulose Nitrate Membranes
Filters Membrane Filters
Cellulose nitrate membranes, circles, plain. Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions.

  • Narrow pore size distribution for improved surface capture and analysis
  • Low levels of extractables to ensure sample integrity

The user will benefit from the performance improvements that are now available in Whatman membrane filters, including very narrow pore size distribution and low levels of extractables. Most membranes are inherently brittle and difficult to handle; it is not uncommon for filters to be damaged during loading into holders or while in use. Whatman cellulose nitrate membrane filters have a noticeably improved flexibility and are made to tolerate abuse during handling, loading, and autoclaving without sacrificing integrity. These membranes are among the strongest of their type available, as measured and compared by burst pressure tests.

The level of extractables in membrane filters has become more important with advances in filtration or adsorption techniques. In particular, pharmaceutical, immunological, and biomedical tissue culture and trace analysis applications can be adversely affected by high extractable levels. Whatman cellulose nitrate membrane filters have a low level of extractables, generally below that of other membranes of a similar type.

One of the major features of Whatman membrane filters is the narrow distribution of pore sizes. The rated pore size of these membranes is closely controlled due to the advanced manufacturing and control system. Additionally, the batch-to-batch variation is minimized providing more consistent laboratory results.

Membrane filters are normally autoclaved at 121 °C without loss of integrity. Cellulose nitrate membranes are supplied as circles, sheets, or reels. Excessive shrinkage can cause problems during autoclaving and is often the cause of membranes tearing in their holders after autoclaving. It may also cause a reduction in flow rate and total throughput. Whatman membranes exhibit a low shrinkage during autoclaving.

This is the standard membrane filter for the majority of laboratory applications involving particles and cells in the range of 0.1 to 12.0 µm. The residue after filtration is found to be almost completely on the surface of the membrane and allows physical recovery of deposits and microscopic examination.
Order Now

Learn more

About VWR

Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...

Learn more About VWR