Replacement Lamps Speedy Delivery Low Cost Warranted for 1000 hours

The most common Detector used in HPLC Methods is the UV-VIS Spectrophotometer. And this UV-VIS Detector uses a Deuterium Lamp. Unfortunately, the Deuterium Lamp has a limited useful lifetime and will need to be replaced at frequent intervals. At Bay Scientific, we stock replacement lamps for many brands of HPLC Detectors and Spectrophotometers. Our lamps are warranted for 1000 hours of use. Most come with timers built-in. Our lamps will perform as well or better than the original manufacturer's lamp and will be lower in price, and most of our lamps are prealigned for easy installation. Satisfaction is guaranteed. Please check out our Lamp List. If you do not find your detector lamp listed, please contact us. We can also supply lamps for spectrophotometers as well as Xenon and Mercury Lamps. FAQ about Deuterium Lamps What is a Deuterium Lamp? Deuterium is an isotope of Hydrogen or Heavy Hydrogen. As a gas, it is sealed under pressure inside a quartz envelope. Sometimes the quartz bulb is encased in a metal cylinder for safety. How does the lamp work? There are electrodes inside the quartz envelope. The detector power supply will generate a very high voltage through the electrodes causing the deuterium gas to discharge and produce a bright, blue fluorescent light. After the lamp fires, the voltage level will drop down. How do I know if a Lamp is working properly? A deuterium lamp will emit a bright blue fluorescent light when it has fired. Hold a piece of white paper (a business card works well) near the lamp so that the light will shine onto the white paper. Is it bright blue? The lamp is lit. If you only see a yellow or orange light, this is the filament of the bulb. The lamp is dead. How long will the lamp last? This is a difficult question to answer. Our Deuterium lamps are warranted to last 1000 hours. However, some lamps will fail earlier. Other lamps will last longer than 1000 hours. Typically, most people work 2000 hours per year. So the lamp should last about 6 months if it is used daily. If a lamp is used with an autosampler and left on continuously, it will reach 1000 hours quickly. If left on continuously, 24 hours per day, the lamp will reach 1000 hours in 42 days. What are the Symptoms of a lamp going bad? The baseline may drift excessively. Or the baseline may have excessive short term, high frequency noise. Or the lamp may not fire at all. Check our LC Hints Link for some suggestions on lamps and detectors.