ICP-OES AAS

Question 1

Workflow of optical spectrometry : AA

Answer 1

Sample introduction –> Excitation source —> Spectrometer for wavelength —> Detector.

Question 2

Flame AAS

Answer 2

-Single atomiser
- Dedicated flame
-Automatic gas box
-Standard and wide range PMT available
-Compatible with all other accessories
-Enhanced software as a standard

Question 3

The AAS Optics

Answer 3

-Double beam optic
-Automatic
=wavelength
= Bandpass
= Slit height
=B/C on all system
- High D2 optical modulation

Question 4

Stockdale optics

Answer 4

True double beam configuration with all of the drift correction advantages of that approach.
- We combine this stability with the optical energy efficiency benefits , and detection limit performance, of single beam design.

Question 5

Thermal heating

Answer 5

Energy transferred through vessel then dissipated throughout the digestion.
Hot plate remains on after completion of the digestion, risk of heating to dryness

Question 6

Microwave heating

Answer 6

-Vessel wall transparent to energy
-Direct activation of molecules in the solution
-Localized superheating maximizes heat transfer
-Upon reaction completion, energy addition stops, sealed container holds sample for when you are ready to work with it.