I want to analyse the casein fractions by RP-HPLC UV/VIS detection in milk. Then I want to coagulate that milk by rennet and determine the para-Casein by RP-HPLC. Is it possible? I know that I can analyze the CMP A&B by the same method, but I was wondering if I could detect the para-Casein by RP-HPLC without the use of MS?