A retention gap is placed between the injector and the front of the column to
A. retain contaminants and prevent them from reaching the column
B. retain the sample and release it gradually to the column
C. prevent backflush of the injected solution
D. all of the above
Answer:A
A retention gap is placed between the injector and the front of the column to
A. retain contaminants and prevent them from reaching the column B. retain the sample and release it gradually to the column C. prevent backflush of the injected solution D. all of the above