Is an high or low 260/280 ratio prblematic for plasmid transfection?

As we know, a 260/280 ratio of ~1.8 is accepted as pure for DNA. Recently, I extract my plasmids in order to transfect, but some of them are in higher or lower rates of 1.8 !!! (The lowest is 1.4...

09 September 2015 1,069 11 View