Hazards With Flame Atomization - PerkinElmer AAnalyst 700 User Manual

Hazards with Flame Atomization

Toxic combustion products:
Toxic combustion products can be generated by the system, depending on the
type of analyses being performed.

You must provide an efficient laboratory ventilation system to remove toxic
products generated during instrument operation.
High temperatures:
The flame can generate temperatures of up to 2800 °C.

To avoid serious burns, never touch the burner head until it has cooled to
room temperature.
UV radiation:
The flame, especially the nitrous oxide/acetylene flame, emits ultraviolet
radiation.

Keep the atomizer compartment door closed when the flame is burning and
never directly view the flame unless you are wearing UV-absorbing glasses.
Acetylides:
If you have aspirated high concentrations of copper, silver, or mercury solutions
into an acetylene flame, unstable acetylides may have formed in the spray
chamber. If permitted to dry, these compounds may explode.

Aspirate solution continuously to prevent residues from drying.

Thoroughly flush the spray chamber and drain system with water
immediately after such an analysis.
Cyanide solutions:
If you intend to aspirate cyanide solutions, make sure that the pH of the liquid in
the drain vessel is greater than pH 10; toxic hydrogen cyanide gas is formed when
cyanides contact acidic solutions.

Never allow solutions containing cyanides to mix with acidic solutions.
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Safety/Regulatory Information
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