Proteins are amphoteric electrolytes and exhibit charged properties in solutions above or below the isoelectric point. These charged proteins migrate by swimming under the force of a DC electric field. The technique of separating proteins by utilizing their swimming speed in an electric field is called electrophoresis (electrophoresis). Currently, there are three main methods used to separate proteins by electrophoresis: polyacrylamide gel electrophoresis, isoelectric point focusing electrophoresis, and bidirectional polyacrylamide gel electrophoresis.
Principle
The basic principle of electrophoretic separation of proteins is a technique that utilizes the swimming speed of proteins in an electric field to separate proteins. Proteins are amphoteric electrolytes and exhibit charged properties in solutions above or below the isoelectric point. Under the action of DC electric field force, these charged proteins will undergo swimming migration.
Appliance
Protein separation.
For more product details, please visit Aladdin Scientific website.
Da — when not otherwise indicated, molecular weight units are daltons. Mw — weight-average molecular weight. Mn — number-average molecular weight.
Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
Cite this article
Aladdin Scientific. "Electrophoretic separation of proteins" Aladdin Knowledge Base, updated 9 juin 2025. https://www.aladdinsci.com/us_fr/faqs/electrophoretic-separation-of-proteins-en.html
Was this article helpful?YesNo23 out 48 found this helpful
Nous utilisons des cookies pour garantir le bon fonctionnement du site et, lorsque cela est autorisé, pour améliorer votre expérience. Vous pouvez gérer vos préférences à tout moment dans les Paramètres. Pour en savoir plus, consultez notre Politique relative aux cookies.
Souhaitez-vous que nous vous envoyions un message lorsque des réductions seront disponibles?
Me rappeler plus tard
Merci ! Veuillez vérifier votre boîte de réception e-mail pour confirmer.
Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.