Whatman filter paper 45 micron sterile

Whatman Non-Sterile Cellulose Nitrate Membranes - 0.45 µm

Cellulose nitrate membranes, circles, plain

Order Product
IDproduct name
28420738Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 13 mm
28420745Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 142 mm
28414971Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 142 mm
28420739Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 25 mm
28420741Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 47 mm
28420742Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 50 mm
28420744Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 90 mm
28414965Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 90 mm
28414966Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 100 mm
28414970Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 110 mm
28414962Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 50 mm
28414958NC45 0.45uM 25MM 100 / PK
28414961NC45 0.45uM 47MM 100 / PK

Cellulose nitrate membranes, circles, plain

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

Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. 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.

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Higher strength and flexibility

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.

Low extractable levels

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.

Narrow pore size distribution

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.

Increased temperature stability

Membrane filters are normally autoclaved at 121 ° C without loss of integrity. Cellulose nitrate membranes are supplied as circles, sheets, or reels.

Reduced shrinkage

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.

White plain filters

This is the standard membrane filter for the majority of laboratory applications involving particles and cells in the range of 0.1 µm 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.

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Productproduct namePrice
10401106NC45 0.45uM 25MM 100 / PK25 mm100 pieces 118.90 USD Add to cart Get Quote

In StockStock on requestLimited stock

7184-014Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 142 mm142 mm25 pieces 248.83 USD Add to cart Get Quote

In StockStock on requestLimited stock

7184-005Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 50 mm50 mm100 pieces 199.49 USD Add to cart Get Quote

In StockStock on requestLimited stock

7184-004Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 47 mm47 mm100 pieces 165.14 USD Add to cart Get Quote

In StockStock on requestLimited stock

7184-002Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 25 mm25 mm100 pieces 101.18 USD Add to cart Get Quote

In StockStock on requestLimited stock

7184-001Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 13 mm13 mm100 pieces 109.40 USD Add to cart Get Quote

In StockStock on requestLimited stock

10401112NC45 0.45uM 47MM 100 / PK47 mm100 pieces 190.24 USD Add to cart Get Quote

In StockStock on requestLimited stock

7184-009Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 90 mm90 mm25 pieces 128.53 USD Add to cart Get Quote

In StockStock on requestLimited stock

10401121Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 100 mm100 mm50 pieces 401.80 USD Add to cart Get Quote

In StockStock on requestLimited stock

10401114Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 50 mm50 mm100 pieces 199.49 USD Add to cart Get Quote

In StockStock on requestLimited stock

10401131Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 142 mm142 mm25 pieces 253.93 USD Add to cart Get Quote

In StockStock on requestLimited stock

10401126Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 110 mm110 mm50 pieces 414.03 USD Add to cart Get Quote

In StockStock on requestLimited stock

10401118Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 90 mm90 mm50 pieces 370.18 USD Add to cart Get Quote

In StockStock on requestLimited stock

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