PerkinElmer AVIO 200, Hardware Manual

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System Description
93
Sample Introduction System
Torch: Demountable design using one-piece quartz tubing for plasma and auxiliary
gas flow. The standard torch is supplied with a 2.0-mm alumina injector for full
corrosion resistance to all acids, including hydrofluoric and aqua regia. A 0.8-mm
injector is available as an option for analysis of very volatile organic solutions. As
options, 3.0-mm, 1.6-mm and 1.2-mm quartz injectors are available.
Spray Chamber: Scott-type designed to minimize pulsations from the peristaltic
pump and constructed of Ryton for complete corrosion resistance to most acids,
including HF, and all organic solvents normally used in ICP analyses.
The Avio 200 also supports the baffled cyclonic spray chamber and Meinhard K1
nebulizer. This sample introduction system provides the best precision and detection
limits. This system cannot be used with HF.
Nebulizer: Cross-flow design with chemically resistant GemTips manufactured
from corrosion-resistant (sapphire tips in a PEEK body) material. The system can
routinely handle 50% (v/v) solutions of HCl, HNO
3
, H
2
SO
4
, H
3
PO
4
, 20% (v/v) HF
and 30% (v/v) NaOH. Up to 20% NaCl can be aspirated by the nebulizer for 1 hour
without clogging. The system is fully compatible for use with other nebulizers such
as ultrasonics, concentrics (Meinhard) and GemCone types.
Peristaltic Pump: A four channel, variable speed, computer-controlled pump.
Speed is variable from 0.2 to 7 mL/minute in 0.1 mL/minute increments using 0.76
mm (0.030 inch) tubing.
Torch Mount: In Quick-Change Torch Module is optimized by computer-
controlled movement of the first transfer mirror.
User Plasma Viewing: The full plasma is viewed through a UV-blocking, low-
transmittance window located in the sample compartment door.