I got a really high value for the 260/280 ratio on a nanodrop. I am not sure if I am just interpreting my data wrong, but my results were:
Nucleic acid concentration: 1.7 ng/uL
A260: 0.035
A280: 0.005
260/280: 7.44
260/230: 0.05
Sample type: DNA
Factor: 50.00
The doctoral student that was helping me run the nanodrop said my sample was fine and fairly pure, but I am not sure how he came to that conclusion given the 260/280 ratio.