I want to analyze O1s peak from different samples grown at different temperature. I am confused how to compare them. I see few options like plotting them in origin and substract background. Also i can do normalization in casa xps. I tried to do by taking a reference point and also with taking average points normalization. The BG and normalization are showing different results in terms of intensity. Could you please suggest me best way to compare them? I trust BG more because that fits with min to maximum peak intensity difference when every peak is analysed separately.