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燃燒器，是使燃料和空氣以一定方式噴出混合燃燒的裝置統(tǒng)稱。燃燒器按類型和應用領域分工業(yè)燃燒器、燃燒機、民用燃燒器、特種燃燒器幾種。多用不銹鋼或金屬鈦等耐腐蝕，耐高溫的材料制成。燃燒器的作用是通過火焰燃燒使試樣原子化。被霧化的試液進入燃燒器，在火焰溫度和火焰氣氛作用下，經(jīng)過干燥、熔融、蒸發(fā)、離解等過程，產(chǎn)生大量的基態(tài)原子，以及部分激發(fā)態(tài)原子、離子和分子。一個設計良好的燃燒器應具有原子化效率高、噪聲小、火焰穩(wěn)定的性能，以保證有較高的吸收靈敏度和測定精密度。原子吸收光譜分析中常用縫隙燃燒器產(chǎn)生原子蒸氣。根據(jù)所用燃氣和助燃氣的種類不同，燃燒器縫隙的長度，寬度各有不同，一般燃燒器上都標注有適用的燃氣和助燃氣。

Burner is a device that makes fuel and air emit mixed combustion in a certain way. Burners can be divided into industrial burners, burners, civil burners and special burners according to their types and application fields. It is made of corrosion resistant and high temperature resistant materials such as stainless steel or metal titanium. The function of burner is to atomize the sample by flame combustion. The atomized test liquid enters the burner. Under the action of flame temperature and flame atmosphere, a large number of ground state atoms, as well as some excited state atoms, ions and molecules are produced through drying, melting, evaporation and dissociation. A well-designed burner should have high atomization efficiency, low noise and flame stability to ensure high absorption sensitivity and measurement precision. Atomic vapor is produced by slot burner in atomic absorption spectrometry. According to the different types of gas and fuel gas used, the length and width of the burner gap are different. Generally, the suitable fuel gas and fuel gas are marked on the burner.