Atomic absorption

Atomic absorption spectrometry is an analytical technique that measures the concentration of metal elements in a sample by the light its free atoms absorb at characteristic wavelengths. The instruments listed here, atomic absorption spectrometers and the accessories that feed them, quantify elements such as lead, cadmium, copper and calcium down to trace levels in water, soil, food and biological samples. Of the current Questpair listings, 99 percent are used, so the catalogue is built almost entirely around second-hand laboratory instrumentation. New, used and refurbished units all appear, drawn from 11 verified suppliers and distributors across 8 countries. Prices span a wide band, which the buying guide below sets out.