CETAC Aridus II, Руководство оператора

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Aridus II™ Operator’s Manual
Chapter 5: Using the Aridus II™ Desolvating Nebulizer System
29
4
The Aridus II
™
System is now ready to use.
Shutdown Procedure
1
Aqueous Analysis: Aspirate dilute nitric acid (2%v/v) for approximately 5-10
minutes to provide a thorough spray chamber rinse. Follow the acid-rinse by
aspirating deionized water for approximately 3-5 minutes.
2
Remove the sample uptake line from the deionized water and aspirate the
solution remaining in the sample line. It is important to dry the sample uptake
line prior to shutting down the system.
3
Shut down the ICP-MS using the procedures recommended by the
manufacturer.
4
Close the valves on the argon and nitrogen gas lines.
5
Turn off the power switches on the Aridus II
™
and ASX-112FR Autosampler
(when applicable).
Temperature Controller Operation
The temperature controllers for the spray chamber and the membrane
desolvation system display the actual operating temperatures of the two
modules. The setpoint
1
Press and hold the SET button and press the up or down arrow until the
desired setpoint is reached.
for each temperature controller can be viewed by
simply pressing the blue-colored button labeled SET on the respective
temperature controller. When the button is released, the actual temperature is
again displayed. The setpoint temperature can be changed by following the
steps below:
2
Release the SET button and the actual temperature will be displayed.
•
The temperature range for the spray chamber is 70°C to 110°C, with a
factory setting of 110°C.
•
The temperature range for the desolvator (membrane oven) is 70°C to
160°C, with a factory setting of 160°C.