The results have shown a good separation of four components: L-Arginine aspartate 1 (tR=6, 5 min), L-Arginine aspartate 2 (tR=13, 2 min), L-Lysine hydrochloride 1 (tR=16, 3 min), L-Lysine hydrochloride 2 (tR=16, 9 min).