10 Questions
What is the purpose of modulating the radiation source in atomic absorption spectroscopy?
To discriminate between the radiation from the hollow cathode lamp and the radiation given off by excited atoms in the flame
What is the main purpose of using a chopper in atomic absorption spectroscopy?
To modulate the radiation source
What type of interference is more common in atomic absorption spectroscopy?
Chemical interference
What is the effect of formation of low volatility compounds in atomic absorption spectroscopy?
Decrease in absorbance signal
How can the effects of low volatility compounds be minimized in atomic absorption spectroscopy?
By using a higher flame temperature
What is the purpose of adding releasing agents in atomic absorption spectroscopy?
To prevent the analyte from reacting with the interferant
What type of complex is formed between Mg and Al in atomic absorption spectroscopy?
Heat stable complex
What is the effect of chopper modulation on the detector signal in atomic absorption spectroscopy?
It creates an ac signal
What is the purpose of using a mechanical chopper in atomic absorption spectroscopy?
To modulate the radiation source
What type of radiation is given off by excited atoms in the flame in atomic absorption spectroscopy?
Visible radiation
Learn about the application of HCL lamps in analyzing various elements, their price range, and lifespan. Understand the concept of multi-element lamps and their limitations.
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