hey, for my project I am extracting paracetamol from a tablet, making paracetamol using a 3-step-synthesis reaction and then comparing purity of the synthesised paracetamol against the extracted paracetamol using mixed melting point analysis. To get the 'duplication' mark would it be sufficient to just repeat the mixed melting point analysis using the same batches of extracted and synthesised paracetamol?