How the AAS works

A brief description on the operation of the Atomic Absorption Spectrometer. Please note: There is an error in the explanation from 3:10 to 3:30. The correct explanation is:"Photons from the hollow cathode lamp are absorbed in the flame by the atoms of the element being examined. These atoms then emit identical photons but in a random direction so that the number going straight through from the lamp to the detector is reduced. The random emitted photons are not detected except for those which happen to be emitted in the original direction by chance." We apologise for this and will rectify this as soon as possible.

Category:

Education

Tags:

• AAS

[leonie21fly]

that was really great actually

[curtis0714]

420, thank you. il now pass my midterm

[aldehlawi]

very clear explanation.. Thank you very much

[SkaterMK99]

Nice video, However the atoms of intrest in the flame will absorb light from the hollow cathode tube, this will decrease the amout of light going to the photo multiplier. The decrease in light detection reguarding the sample compared to the amount of light detected with just the hollow cathode tube is converted to a measurable amount of absorption.

[shikinhlmzf]

Great video!! Thanks :)

[123ankitsaxena]

very nice and thanks

[yardconnec1]

thank you! finally

[msmcgregor]

Awesome video! Hope it helps me with my interview for a placement tomorrow!

[gortaithe]

this may be a horribly stupid question... but what solution is the capillary tube in? for storage i assume?

[plzcallmebabe]

anyone else got an AAS tomorrow? xD