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7
CH3041
FLOW INJECTION
ANALYSES
Flow injection:
a liquid sample is injected into a carrier solvent stream to which various
reagents can be added. After a suitable reaction time the
sample reaches the detector for analysis. (eg. PO43-)
• A readily automated way of carrying out
many different types of analytical measurement using a small sample size.
many different types of analytical measurement using a small sample size.
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D
Sample injector (40 mL)
Rxn coils » 20 cm
Detector
Solvent
Carrier
Reagent 1
Reagent 2
Carrier
Reagent 1
Reagent 2
Reagent 3
20 - 60 seconds
