Guardian DC in-line non-return gas filter
for all ICP instruments
The Guardian DC In-line Non-Return Gas Filter P/N from Glass Expansion provides protection for your ICP system in two ways:
A non-return valve prevents acidified sample or rinse solution syphoning into the instrument gas box.
30-micron PolyComb filter protects the nebulizer from particulates in the instrument gas supply.
Direct Connection nebulizer and the gas supply fitting on the instrument.
The In-line Non-Return Gas Filter has a one-way valve that allows argon to flow from the instrument into the nebulizer but prevents liquid siphoning into the instrument.
A unique PolyComb 30 μm 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.
Siphoning of the sample or rinse solution into the nebulizer argon control module on your ICP can occur at the end of an analytical 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 with using an autosampler for unattended overnight runs, it is a silent, invisible killer of your ICP. An 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 downtime.
Includes:
70-803-1850: Sample drain line