Which type of special photometer is used to analyze for heavy metals in water?

The Atomic Absorption Spectrophotometer is specifically designed for the detection and quantification of heavy metals in various samples, including water. This instrument operates by using the principle of atomic absorption, where atoms in a sample absorb light at characteristic wavelengths. As the sample is introduced into the instrument, it is vaporized in a flame or graphite furnace, and the concentration of the heavy metal is determined by measuring the amount of light absorbed at specific wavelengths corresponding to the metals of interest.

This technique is particularly effective for heavy metals because it allows for precise measurement of extremely low concentrations, which is crucial in environmental analysis where contaminants in water may be present at trace levels. The sensitivity and specificity of Atomic Absorption Spectrophotometry make it an ideal choice for monitoring compliance with water quality standards and for ensuring public safety regarding metal pollutants in drinking water.