Which of the following is a special adsorbent used in gas-solid chromatography?
A. Molecular sieves
B. Silica gel
C. Alumina
D. Starch
Answer:A
Which of the following is a special adsorbent used in gas-solid chromatography?
A. Molecular sieves B. Silica gel C. Alumina D. Starch
Explanation: Molecular sieves are a special adsorbent used in gas-solid chromatography. It is used in open tubular columns.