Multimode Sample Introduction System (Msis) - Agilent Technologies 4100 User Manual

The Agilent 4107 Nitrogen Generator can be used to provide a
nitrogen supply for the MP-AES instrument and EGCM. This allows
the instrument to operate without the need for a cylinder or Dewar
nitrogen supply. A supply of clean, dry, oil-free compressed air is
required to supply the nitrogen generator and the MP-AES
instrument. This can be supplied from an in-house supply (if it meets
the flow and purity requirements) or a commercial air compressor.
For details on the required air flow and purity requirements for the
nitrogen generator, please see the Agilent MP-AES Site Preparation
Guide.
Separate nitrogen generator units must be used to supply the nitrogen to the
NOTE
MP-AES instrument and the ECGM.

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 MP
Expert Help.
The MSIS is used with the MP-AES instrument to provide
simultaneous vapor generation of several hydride forming elements,
enabling determination with low ppb detection limits.
The MSIS consists of the OneNeb nebulizer and modified glass
cyclonic spray chamber that has two vertical conical tubes in the
center of the chamber. This allows for reductant and sample to mix
quickly and thoroughly in the chamber using thin film hydride
technology to form the hydrides.
The MSIS can be operated in three modes: hydride only,
simultaneous hydride and conventional nebulization or conventional
nebulization only.
Agilent Microwave Plasma Atomic Emission Spectrometers User's Guide
Installation
33