What is atomic absorption spectroscopy?

Atomic absorption spectroscopy is a technique used for identification that minerals or metals are present in a liquid or in a solid. The light source is focused on the sample and absorption of this light is measured and compared with the known absorption spectrum of various metals. Each element has a unique spectrum that occurs when it is heated or absorbed by light. This method can also be identified by trace quantities. The more metal is present in the sample, the greater the absorption that will be detected. The most common metals identified by this method are iron, aluminum, copper and lead, but any element can be identified.

In the atomic absorption spectroscopy of flame, the machine consists of several parts. The desired wavelength of the light comes from a hollow cathode lamp that shines directly to the sample. The nebulizer takes the liquid sample and creates a fog that is blown into the flame. The heat of the flame liberates the individual elements that then absorb light. Furthermore, the monochromator filters out undesirable spectral lines and photomulThe tiPlikator determines the amount of absorption that occurs. In this case, they would be insulated in the monochromator and the photomultiplier would show the amount of absorption for each wavelength.

Atomic absorption spectroscopy Atomic furnace is similar to atomic absorption spectroscopy of flame. Instead of spraying the sample into an open flame, a drop of the sample is heated in the graphite furnace. The furnace is heated by electric current and is insulated with gas, usually argon.

When performing atomic absorption spectroscopy, the beam of the hollow cathode lamp lamp is sorted directly with the sample. If the beam is not focused on the sample, the absorption numbers will not be accurate and the sample components may not be detected. Calibration of the machine can avoid this problem before using the actual sample.

There are several atomic absorption spectroscopy applications. Is often used to determine minerals and metals asIt is mercury, they are present in water samples. It can also be used to detect lead presence in everyday products such as color.