Page 196 - Applied Pharmacognosy
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Detectors in HPLC

                   Comparison of Detectors

❑ UV-VIS absorbance detectors are the most versatile, and are

widely used.

                       Selectivity         Sensitivity    Possibility of
                                                        Gradient System
                   Light-absorbing
UV-VIS Absorbance     substances           ng Possible

Fluorescence       Fluorescent substances  pg           Possible

Differential       None                    µg Impossible
refractive index

Evaporative light  Nonvolatile substances  µg           Possible
scattering

Electrochemical    Oxidizing / reducing    pg           Impossible
                         substances

                   Note: The above table indicates general characteristics. There are except1io9n5s.
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