New Products
New Guardian In-Line
Non-Return Argon Filter
The new Guardian In-line Non-Return Argon Filter (part number 70-
803-1362) from Glass Expansion provides protection for your ICP
system in two ways:
1. A non-return valve prevents acidified sample or rinse solution
syphoning into the instrument gas box.
2. 30-micron PolyComb filter protects the nebulizer from particulates
in the instrument gas supply.
The Glass Expansion Guardian In-line Non-Return Filter is positioned between the Ar inlet on the Glass Expansion Direct Connection
nebulizer and the gas supply fitting on the instrument. The In-line Non-Return Filter has a one-way valve that allows argon to flow from the
instrument into the nebulizer, but prevents liquid syphoning into the instrument. A unique PolyComb 30-micron filter design protects the
nebulizer from particulates from the gas supply or from worn or damaged fittings in the gas lines. Unlike Sintered or Frit style filters, the linear
honeycomb structure makes PolyComb most resistant to particulate and dissolved solid clogging.
Syphoning of the sample or rinse solution into the nebulizer argon control module on your ICP can occur at the end of an analytic run when
the nebulizer gas pressure is turned off and there is liquid in the sample flow path. It is made worse if the autosampler probe stays in the
rinse position at the end of a run.
A real problem using an autosampler for unattended overnight runs, it is a silent, invisible killer of your ICP. Acidified solution in the instrument
Ar control module can cause corrosion to electronic sensors in mass flow controllers and damage regulators that can result in expensive
repairs to your ICP and un-planned down time.
Ordering Information:
Part Number Description
70-803-1362 Guardian In-Line Non-Return Filter
www.geicp.com Glass Expansion Newsletter | Issue 43 9
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