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WHA10401106

Whatman® nitrocellulose membrane filters

NC45 Membrane Circles, diam. 25 mm, pore size 0.45 μm

Synonim(y):

Z697117, polycarbonate filter, polycarbonate membrane

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About This Item

Kod UNSPSC:
40161507
NACRES:
NB.24

sterylność

non-sterile

opakowanie

pkg of 100 ea

producent / nazwa handlowa

Whatman 10401106
Whatman Article No. 28414958 (US reference)

Średnica

25 mm

wielkość porów

0.45 μm

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Opis ogólny

Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the performance improvements which are now available in Whatman membrane filters, including very narrow pore size distribution and low levels of extractables.

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.

Applications:
  • Sample preparation
  • Microbiological studies
  • Filtration of aqueous solutions

Inne uwagi

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Informacje prawne

Whatman is a registered trademark of Cytiva
This page may contain text that has been machine translated.

Piktogramy

Flame

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Kod klasy składowania

11 - Combustible Solids


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Odwiedź Bibliotekę dokumentów

Dori M Landry et al.
Genes & development, 23(23), 2753-2764 (2009-12-03)
Most eukaryotic mRNAs are translated using a cap-dependent mechanism of translation. However, approximately 10% of mammalian mRNAs initiate translation using a cap-independent mechanism that is not well understood. These mRNAs contain an internal ribosome entry site (IRES) located in the

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