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Bharat Kumar is teaching live on Unacademy Plus

Bharat Kumar
Written UPSC MAINS 2018 Writing RO/ARO MAINS 2018 Qualified GATE twice Worked with Mahindra and Mahindra YouTube channel "StudyLabs"

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Unacademy user
meaning of flame photometry or atomic absorption spectroscopy?
Hitesh Dubey
7 months ago
  Photoelectric flame photometry, a branch of atomic spectroscopy is used for inorganic chemical analysis for determining the concentration of certain metal ions such as sodium, potassium, lithium, calcium, Cesium, etc. In flame photometry the species (metal ions) used in the spectrum are in the form of atoms. The basis of flame photometric working is that, the species of alkali metals (Group 1) and alkaline earth metals (Group II) metals are dissociated due to the thermal energy provided by the flame source. Due to this thermal excitation, some of the atoms are excited to a higher energy level where they are not stable. The absorbance of light due to the electrons excitation can be measured by using the direct absorption techniques. The subsequent loss of energy will result in the movement of excited atoms to the low energy ground state with emission of some radiations, which can be visualized in the visible region of the spectrum. The absorbance of light due to the electrons excitation can be measured by using the direct absorption techniques while the emitting radiation intensity is measured using the emission techniques. The wavelength of emitted light is specific for specific elements
Hitesh Dubey
7 months ago
Happy Learning ☺️
Allada Malli
7 months ago
thank you sir
please share the ranking of India in all