Is it true that only a NMR test is able to detect the effectiveness, quality, quantity of a product? That it is able to detect wrong raw material, over-reaction, or isomers occurring during synthesis? But what about the other tests like GC/MS, HPLC/GC, HCLtitration, meltingpoint test. Is one or a combination of these tests not able to do the same as a NMR, tell you the effectiveness, purity, quality of a product? How do these other tests compare to NMR?