試題詳解

30. Which of the following is not a feature of carrier g^s used in gases chromatogr/)hy?
(A) The carrier gas should be chemically inert.
(B) The carrier gas should be inexpensive.
(C) The purity of carrier gas should not be very high.
(D) The carrier gas should be suitable for tiie detector employed.
(E) None of the above.