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GE17-0891-02

Sigma-Aldrich

Percoll®

Cytiva 17-0891-02, pack of 250 mL

Synonyme(s) :

Percoll Density Gradient Media

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About This Item

Code UNSPSC :
12352207
Nomenclature NACRES :
NA.75

Forme

colloidal (Colloidal solution of silica coated with polyvinylpyrrolidone (PVP))
liquid (Suspension)
solution

Conditionnement

pack of 250 mL

Fabricant/nom de marque

Cytiva 17-0891-02

Couleur

Colorless to slightly yellow

Plage de pH

8.5-9.5

Description générale

Percoll® is a well-referenced media for density gradient centrifugation of cells, viruses, and subcellular particles. Percoll® is composed of colloidal silica coated with polyvinylpyrrolidone (PVP).

Percoll® is a low viscosity density gradient medium for preparation of cells, subcellular particles, and larger viruses. The low viscosity of the medium enables cell preparation on preformed gradients in only a few minutes using low centrifugal forces (200 to 1000 × g). The medium is available in easy-to-open, resealable 250 mL and 1 l bottles.

Percoll® consists of silica particles (15 to 30 nm diameter) coated with non-dialyzable polyvinylpyrrolidone (PVP). Free PVP is present at only 1% to 2%. Percoll® is non-toxic, almost chemically inert and does not adhere to membranes. Percoll® gradients can be formed within the density range of 1.0 to 1.3 g/mL, and are iso-osmotic throughout.

Percoll® can be stored unopened at room temperature for five years. At -20° C, it can only be stored for up to six months. If stored at -20° C, gradients form upon thawing, necessitating a mixing of the bottle before use. Preformed gradients can be stored for weeks without a change in gradient shape, provided that the gradient remains unfrozen. Percoll® can be buffered within the pH range 5.5 to 10.0 without any changes in properties. If the pH is dropped below 5.5, gelling may occur. Gelling can also be caused by the presence of divalent cations, an effect which is exacerbated by elevated temperatures.

Application

Used in balanced salt solutions, physiological saline or 0.25 M sucrose.

Caractéristiques et avantages

  • For separation of cells, subcellular particles and larger viruses (down to ~ 70S) under gentle conditions which preserve viability and morphological integrity.
  • Non-toxic to cells.
  • Adjustable to physiological ionic strength and pH.
  • Gradients can either be preformed or spontaneously generated by centrifugation at moderate speeds in an angle-head rotor.
  • Gradients are iso-osmotic throughout and cover a range of densities up to 1.3 g/mL.

Stockage et stabilité

Please be aware this product may be shipped 90 days before the expiration date. For more information on the batch specific expiration date, please contact technical service.
Store at 4 to 30 °C ()

Remarque sur l'analyse

To view the Certificate of Analysis for this product, please visit www.cytiva.com.

Informations légales

Percoll is a registered trademark of Cytiva

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Protocoles

How to Make and Use Percoll Gradients

To prepare a Percoll gradient, the osmolality of Percoll must be adjusted with saline or cell culture medium to make Percoll isotonic with physiological salt solutions.

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