Dear All, Apologies for non-CCP4 / non-Crystallography question. I planning to spot plasmid DNA on a blotting paper for transport. I do not have any idea what type of blotting paper is used for this purpose. 1. what type of blotting/filter paper should be used? will any type of Whatman paper is good for this purpose? where (which supplier / catalog number) could I purchase that blogging paper? 2. what is the typical lowest volume for spotting (will 5 micro lit. sufficient?) 3. Are these "spotted DNA" are good option for longtime storage (for about 6 months)? With thanks in advance, -Partha