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The Waters Equipment W7950 sparger assembly is used to prepare a sample for taking a degassed cation conductivity measurement.
After the sample has been cooled and the pressure controlled, it enters the sparger assembly. It passes through a resin column to remove the ammoniated compounds and convert the neutral salts into their corresponding acids, enhancing the conductivity of these impurities.
The sample then passes through a sparging column in a down flow direction. A regulated flow of technical grade nitrogen or helium gas is introduced into the bottom of the column and is diffused into the sample to create turbulence. As the sparging gas bubbles travel up through the column, they drive the volatile gases out of the sample, and both exit the column through the vent. The sample then is sent to a conductivity cell, where it can be measured free of these impurities.
The Waters Equipment sparger assembly eases sample conditioning so samples can be measured free of impurities. The sparger assembly uses inert gas, and with no reboiler, there is no element to burn out and no hot spots to touch, and the sample never needs re-cooling. Samples pre-cooled to 77°F (25°C) remain at that temperature, ensuring the highest instrument accuracy.
|Process Pressure||100 psig (6.9 barg) design; regulate to 10-20 psig (0.69-1.4 barg)|
|Flow Rate||100–200 cc/min|
|Process Temperature||125°F (52°C)|