4. The principle of chromatography →--1------1--1--4--- Question 1: How chemically similar compounds can be separated in a chromatographic column? P2-3 sample mobile phase A+BEa B B ll B A目B呵4. The principle of chromatography Question 1 : How chemically similar compounds can be separated in a chromatographic column? P 2-3 1 2 3 4 5 t t t t t sample mobile phase A+B B B B B A A A