Atomic absorption spectroscopy is an analytical method for measuring the amount of chemical elements in the form of free atoms in the gas phase as a function of the amount by which they absorb light. Its basic principle is simple: free metal ions absorb light of certain wavelengths. In analytical chemistry, AAS has many applications in determining the quantity of a specific element in a test sample. This technique is capable of detecting over 70 elements in a solution and in solid samples.<\/p>\n

In practice, an absorption spectrum of the sample is used to measure the desired analyte. In order to correlate the degree of absorption with the analyte concentration, standards of known concentration are needed. For proper elemental analysis, the sample has to be transformed into free atoms first.<\/p>\n

Currently, the most commonly used atomizers are electrothermal and flame atomizers. After atomization, the atoms are pumped with light, and the emissions are run through a monochromator, which isolates certain wavelengths before measuring them with a detector.<\/p>\n

AAS has many applications in pharmaceutical manufacturing, water and wastewater analysis, toxicology research, biophysics, catalytic process studies, archaeology, and many other scientific fields.<\/p>\n","protected":false},"excerpt":{"rendered":"

Atomic absorption spectroscopy is an analytical method for measuring the amount of chemical elements in the form of free atoms in the gas phase as a function of the amount by which they absorb light. Its basic principle is simple: free metal ions absorb light of certain wavelengths. In analytical chemistry, AAS has many applications […]\n","protected":false},"author":1,"featured_media":569,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[40],"tags":[],"_links":{"self":[{"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/posts\/568"}],"collection":[{"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/comments?post=568"}],"version-history":[{"count":2,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/posts\/568\/revisions"}],"predecessor-version":[{"id":810,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/posts\/568\/revisions\/810"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/media\/569"}],"wp:attachment":[{"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/media?parent=568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/categories?post=568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fidarshimi.com\/en\/wp-json\/wp\/v2\/tags?post=568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}