Question

One of the detectors used in HPLC is

• A. Bolometer
• B. Thermal conductivity detector
• C. Refractive index detector
• D. Geiger Muller counter

Hint:

HPLC → RID is used for analytes with no UV absorption.

Answer 1

The Correct Option is C

Refractive index detectors (RID) are commonly used in HPLC for detecting compounds that lack UV absorption. RID is universal but less sensitive and not compatible with gradient elution.