INFICON HAPSITE Smart Plus Chemical Identification System User Manual
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HAPSITE Smart Plus Operating Manual
1c
With a stirrer, begin swirling the water. Remove the stirrer and rapidly dispense
the standard below the water surface.
1d
Quickly withdraw the syringe and allow a few seconds for the standard to
disperse with the water’s movement.
1e
For Internal Standard calibration, a second spike of the Internal Standard mix
can also be added.
1f
Immerse the probe and immediately begin the analysis to avoid loss of VOCs.
NOTE: The sample purging process removes VOCs from the water sample.
Therefore, there can only be one analysis per water standard.
NOTE: The water standard and sample temperatures should be closely
matched for similar purging characteristics (partition coefficient). The
readout from the temperature sensor in the probe is displayed on the
HAPSITE and PC for easy temperature monitoring. An Internal
Standard spike into the water will correct for some temperature
variations.
Figure 14-5 Standard spiking into a purge vessel.