Installation
36 Agilent 5800 and 5900 ICP-OES User's Guide
Advanced Valve System (AVS) — AVS 4, AVS 6 and AVS 7
For safety information and to prepare the accessory for installation, please see the
instructions that came with the accessory.
The integrated AVS 4 (4 port switching valve) rinses the sample introduction
system while the next sample is being presented to the instrument prior to
measurement. Excess sample is diverted away from the spray chamber and rinse
is introduced immediately after measurement. This will reduce sample carry-over
and required cleaning frequency of sample introduction components.
The integrated AVS 6 (6 port switching valve) and AVS 7 (7 port switching valve)
increase sample throughput and decrease turnaround time and operating costs.
The switching valve is positioned between the nebulizer and the peristaltic pump
of the spectrometer. Samples are quickly loaded into the sample loop, ready for
immediate analysis by the ICP-OES, greatly reducing sample uptake delays. Pre-
emptive rinsing of the sample line means sample to sample analysis times are
reduced.
The AVS 6 and AVS 7 include a bubble injector that automatically injects bubbles
after the sample is loaded into the loop, isolating the sample from the rinse/carrier
solution. This reduces the volume of sample required for measurement (therefore
reducing analysis time) as tailing (or dilution) effects are minimized.
External Inlet Duct Adapter
The External Inlet Duct Adapter provides an attachment for ducting air into the air
intake port, for use in labs with harsher environments.
Vapor Generation Accessory (VGA)
The VGA 77P is a continuous flow vapor generation accessory for Inductively
Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) instruments that
determines Hg and the hydride-forming elements at parts per billion (ppb) levels.
The entire plumbing assembly is integrated into a separate module and can be
simply exchanged when switching elements.
Multimode Sample Introduction System (MSIS)
For safety information and to prepare the MSIS for installation, please see the
instructions that came with this accessory and the ICP Expert Help.
The MSIS is used with the ICP-OES instrument to provide simultaneous vapor
generation of several hydride forming elements, enabling determination with low
ppb detection limits.
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