Low autofluorescence across a wide range of excitation/emission wavelengths makes the membrane suitable for fluorescencebased immunodetection and multiplexing. High binding capacity (173 – 203 µg IgG/cm2) of small proteins (< Mr 20 000) reduces risk of "blowthrough". Available in popular precut sizes for laboratory application. Nitrocellulose blotting membrane, with 0.2 µm pore size, for excellent sensitivity. Excellent sensitivity, resolution and low background Amersham Protran Premium offers excellent sensitivity, resolution, and low background, especially when used with the fluorescence Amersham ECL Plex Western blotting detection system. Western blotting sandwiches For convenience, Western blotting sandwiches (10 sandwiches/package) are available, consisting of precut Amersham Protran Premium 0.2 nitrocellulose membranes preassembled with 2 x 3 mm Chr blotting papers.