Hollow Cathode Lamp

A Hollow Cathode Lamp is a type of electric lamp that is commonly used in analytical chemistry and spectroscopy. It is a specialized type of discharge lamp that contains a hollow cathode made of a specific metal or element. When an electric current is passed through the lamp, the metal atoms in the cathode are excited and emit characteristic wavelengths of light.

Hollow Cathode Lamps are often used in atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) to analyze the elemental composition of samples. They provide a stable and intense light source with narrow spectral lines, allowing for accurate and precise measurements of the absorption or emission of specific elements.

These lamps are typically designed to be used with specific elements, such as sodium, potassium, calcium, or various transition metals. They are available in different sizes and configurations to fit different spectrophotometers and analytical instruments.

In summary, Hollow Cathode Lamps are specialized electric lamps used in analytical chemistry and spectroscopy to provide a stable and intense light source for the analysis of specific elements in samples.