AAS of mercury in prescence of cobalt

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Analyzing mercury in the presence of cobalt using atomic absorption analysis is challenging due to both elements emitting and absorbing radiation at 235.65 nm. Cold vapor atomic absorption spectroscopy (AAS) is typically used for mercury, as it involves reducing mercury to its elemental form, which has a high vapor pressure. The discussion raises questions about the vapor pressure of zero valent cobalt, suggesting that this could impact the analysis. Participants are seeking hints and strategies to effectively differentiate between the two elements during measurement. Understanding the properties of both elements is crucial for successful analysis.
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Just wondering how to analyse mercury in the presence of cobalt by atomic absorption analysis given that both elements emit and absorb radiation at 235.65nm.
I know that mercury isj examined using cold vapour atomic absorbtion analysis... but knowing this still doesn't help?

Any hints would be appreciated
cheers!
 
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Taryn said:
Just wondering how to analyse mercury in the presence of cobalt by atomic absorption analysis given that both elements emit and absorb radiation at 235.65nm.
I know that mercury isj examined using cold vapour atomic absorbtion analysis... but knowing this still doesn't help?

Cold vapour AAS is a method in which mercury is reduced in the sample to elemental mercury which has a fairly high vapor pressure. What do you suppose the vapor pressure of zero valent cobalt might be?
 
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