The method of atomic absorption is characterized by an operating principle and method of analysis that provides relatively simple measurements with high accuracy. The method is widely used in analysis of minute quantities of metallic elements. A special-element hollow cathode lamp for each element to be analyzed is used to irradiate a sample, which is first atomized into a gas. A photomultiplier tube (PMT) then detects the light passing through the sample in order to measure the amount of energy absorbed. Absorption is determined by comparing measured values to a pre-measured reference sample.

The range of applications of this analytical method is extremely wide. It is used in petrochemical analysis, metallurgy, clinical and forensic medicine, mining, geology, public health, food and agricultural chemistry, and even in areas such as environmental protection.

• Hollow cathode lamps offer spectral purity, stable operation, low noise, long life, and high output intensity.
• R7154 28 mm side-on PMT: features a highly sensitive solar-blind photocathode.
• R955 28 mm side-on PMT: has fused silica envelope for UV sensitivity extension and features high quantum efficiency, high current amplification, good S/N ratio and wide spectral response from UV to NIR.
• R928 28 mm side-on PMT: UV glass for UV sensitivity extension. Offers high quantum efficiency, high current amplification, good S/N ratio and wide spectral response from UV to NIR.

Please contact us for information on other products which can be used for this application.