Los papeles de cromatografía Whatman se utilizan ampliamente en todo el mundo, lo que refleja su pureza, alta calidad y consistencia. Están hechos de celulosa de algodón especialmente seleccionada y su calidad se controla rigurosamente para garantizar la uniformidad dentro del grado.
- La celulosa pura fabricada con linters de algodón de la máxima calidad, sin aditivos, garantiza que no habrá contaminación durante las fases de transferencia
- Fabricado y probado específicamente para uso en técnicas cromatográficas, con el fin de garantizar la capacidad de absorción y la uniformidad de la acción capilar para poder obtener transferencias limpias y uniformes
Grade 1 Chr: Smooth surface. Good resolution for general analytical separations.
Grade 2 Chr: Slower than 1 Chr for higher resolution applications. Smooth surface. Particularly recommended for optical or radiometric scanning.
Grade 3 Chr: A medium thickness paper. For general applications with medium/heavy solute loadings. Frequently used for separation of inorganic compounds and for electrophoresis.
Grade 3MM Chr: Though widely used as a blotting paper, 3 mm Chr is also used both in electrophoresis and for general chemistry. A medium thickness paper used extensively for general chromatography and electrophoresis.
Grade 4 Chr: Fastest of the thin papers. Recommended for routine and/or repetitive chromatography when loadings are relatively low. Smooth surface. Very suitable where speed is important and very high resolution is not required.
Grade 17 Chr: Highly absorbent paper suitable for heavy loadings. Recommended for preparative paper chromatography and electrophoresis.
Grade 20 Chr: For maximum resolution, this grade is supreme giving the greatest possible separation of closely related compounds. Smooth surface. Recommended for separation of samples of unknown composition, with outstanding resolution at low loadings.
Grade 31ET Chr: Extremely fast. Flow rate is the highest of all chromatography papers in the Whatman range. Thick paper with fairly soft surface. Principal application is in electrophoresis of large molecules.
Grade 54 SFC: Thin hardened paper with high speed and fair to good resolution. Recommended for routine chromatography. High wet strength.
Grade 2668 Chr: For separation of relatively large molecules by electrophoresis.
Grade 2727 Chr: For separation of very large amounts of substance.