PDA Peak purity How to process data?
I have aproblem about PDA peak purity.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.According to this procedure we should inject 6 times standarts and process them by setting threshold determination as auto treshold.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.I guess this procedure is aplicable for standarts which are including only one component.?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.Do ? have to select for each component different processing methods ?n that case which method ? have to use by process?ng samplesor do ? have select the greatest purity angle of all components in all chromotograms. ?'m not sure that ? have explained my problem, because for me is the peak purity a hard stuff to understand thank u for your help if u answer my question as soon as possible ? woul be very greatfullNilay