What’s in Your Tube?: A Quick Guide to Measuring DNA by Spectrophotometry
Type
Blog Post
Published
July 1, 2025, 1:15 p.m.
...Best Way to Elute and Store Your Plasmid DNA?
Selecting Your Plasmid Purification Kit
Resources on Addgene.org...You have just purified your plasmid and are ready to move on to your downstream application — but wait...wait! Do you know how much plasmid DNA you have or how pure your sample really is?
To assess the concentration...concentration and purity of nucleic acids, such as plasmids, the go-to method is to use spectrophotometry....Protein contaminants
Whether you are purifying plasmid DNA from bacteria or cleaning up a PCR product,... 230 nm is guanidine thiocyanate (used in many plasmid purification kits), which can dramatically reduce...assay or running an agarose gel. In the case of plasmids, the use of RNase treatment to degrade bacterial...