PDA Peak purity How to process data?
<p>I have aproblem about PDA peak purity.</p><p></p><p>We apply purity analyses for forced degredation studies. In a support document (which ? can scaned ) for waters millenium 32 which is written by Dr. Shulamit Levin in the year of 2001, the procedure for peak purity isclearly explained , and we use to apply this procedure.</p><p>According to this procedure we should inject 6 times standarts and process them by setting threshold determination as auto treshold.</p><p>after processing we determine the maximum value of purity angle and set it in the processing method under solvent and noise criteria for treshold determination. than we reprocess this 6 injections and verify that all standarts came out pure.</p><p>I guess this procedure is aplicable for standarts which are including only one component.</p><p>?n my case ? have to work with a standart which is including 6 components and ?'m really confused which purity angle should ? have select for solvent and noise criteria.</p><p>Do ? have to select for each component different processing methods ?n that case which method ? have to use by process?ng samples</p><p>or do ? have select the greatest purity angle of all components in all chromotograms. </p><p>?'m not sure that ? have explained my problem, because for me is the peak purity a hard stuff to understand </p><p>thank u for your help if u answer my question as soon as possible ? woul be very greatfull</p><p>Nilay</p>