PerkinElmer PINAACLE 900 Series, Руководство по оборудованию и обслуживанию для клиентов

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Safety Practices
Inert Gas
The graphite furnace requires a supply of inert gas. PerkinElmer recommends
argon.
Although nitrogen can be used, it is not recommended for the inert gas supply. At
furnace temperatures above 2300 °C, nitrogen reacts with graphite to form toxic
cyanogen gas (CN)
2
.
Safety Checks
Before you start an analysis, make sure that:
• The laboratory fume ventilation system is operating;
• The inert gas supply is connected and set to the correct pressure;
• The cooling water supply is turned on;
• The autosampler waste bottle is empty.
Hazards with Electrothermal Atomization
Toxic Products
Toxic metal vapors, ozone, etc., 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.
• If you use nitrogen as the inert gas, toxic cyanogen gas (CN)
2
will be produced
when the furnace temperature is above 2300 °C.
High Temperatures
The THGA graphite furnace can generate temperatures of up to 2600 °C.
The HGA graphite furnace can generate temperatures of up to 2700 °C.
• To avoid serious burns, never touch the graphite components until the furnace
has cooled to room temperature.