Page 288 - Applied Pharmacognosy

Types of Chemical markers

Detection
UV/VIS (On-tube) detection:
The resolved bands are generally detected
during the run by a UV-visible absorbance
detector.

For polyimide-coated capillaries, a segment
of the coating is scraped off to provide an
optically transparent window several
millimeters long
Fluorescence detection:

fluorimeter positioned at the cathode end
of the capillary.