Overview
Whatman 903 Proteinsaver card is a sample collection card with five half-inch sample spots.

Ready-to-use cards and kits save time and costs during protein collection, transport, and archiving
The Proteinsaver card has a wraparound cover with spaces for name and date of collection. The card fits into our Whatman foil barrier resealable bags for storage. It is imprinted with the universal biohazard symbol in accordance with USP regulations.

Storage: each circle holds 75-80 µL of sample
Strict quality control and ISO9001 manufacturing standards: ensures high quality, reproducibility, and purity
We can design customized components and solutions to help you build smarter diagnostic assays using Whatman papers and filters. Read more.