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CH3041
ATOMIC SPECTROSCOPY
II
Atomic Absorption Spectroscopy (AAS)
Atomic Emission Spectroscopy (AES)
• Flame AA is one of the most commonly used methods for
determining trace metal concentrations in water and solids
samples. 1-2 mL of sample needed.
Instrument
Detection
Limit (IDL) around
30ppb (eg Mo) using the 313.3 nm line.
30ppb (eg Mo) using the 313.3 nm line.
• Graphite Furnace AA (2500K) is a higher performance
technique used for lower
analyte concentrations. 10-100 mL of sample needed. IDL around 0.10 ppb (eg. Mo)
analyte concentrations. 10-100 mL of sample needed. IDL around 0.10 ppb (eg. Mo)
