Hi Jerry, I believe that if you make your cuvette and sample buffers exactly the same, you would really cut down on noise, and get an accurate reading. Did you do that, or is it possible?
Jacob ******************************************* Jacob Pearson Keller Northwestern University Medical Scientist Training Program Dallos Laboratory F. Searle 1-240 2240 Campus Drive Evanston IL 60208 lab: 847.491.2438 cel: 773.608.9185 email: [EMAIL PROTECTED] *******************************************