HPLC Deuterium (D2) Lamp
- Principle：Gas-discharge emits 190-400 nm UV light with stable continuous spectrum, high intensity in UV range
- Application：Detect aromatic/conjugated compounds (vitamins, pharmaceuticals), typical wavelengths 254/280 nm
- Maintenance：Preheat 30 mins, avoid frequent switching, clean window monthly with ethanol
UV Lamp
- Principle：Deuterium-tungsten combo covers 190-800 nm, tungsten lamp for 350-800 nm visible light
- Application：Detect visible-light-absorbing substances (sugars, pigments), enable full-wavelength scanning
- Maintenance：Weekly wavelength calibration, turn off tungsten when idle, replace fused components