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2 cards from this section. Quick, good the night before a test.
What is the basic principle of Atomic Absorption Spectroscopy?
Think about how light interacts with free atoms.
What type of lamp is used in AAS?
Consider the source of light that targets specific elements.
What does AAS measure?
Think about how light interacts with atoms.
True or False: Atomic Emission Spectroscopy measures the emission of light from atoms that are in the ground state.
Focus on the state of the atoms during measurement.
You perform AAS on a standard with an absorbance of 0.750 which corresponds to 15 ppm. What would be the expected absorbance if the concentration of the metal doubled?
Use the linearity of Beer’s law to predict absorbance changes.
A sample's emission intensity is measured to be 3200 counts, using a calibration curve from standards you determined the slope was 1000 counts/ppm. What is the concentration of the sample?
Don’t forget about the y-intercept in your calibrations.
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