INFICON HAPSITE ER Chemical Identification System - Manual (Page 425)

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HAPSITE ER Operating Manual
6a Rinse the 10  L syringe, with cemented needle (pictured in Figure 13-6 ), to be
used for the injection of the Internal Standard/Surrogate mixture, with high
purity methanol three times, discarding the methanol according to local
regulations (preferably in a vented hood) after each rinse.
WARNING
The needle tip is sharp, be careful to avoid injury.
6b Rinse the 10  L syringe once with the Internal Standard/Surrogate mixture, and
discard the internal standard/surrogate mix from the 10  L syringe.
6c Inject the desired amount of Internal Standard/Surrogate mixture into the
sample through the small end of the sample syringe. See
Figure 13-6 .
Figure 13-6 Injecting the Mix into the Sample Syringe
For calibration standard preparation, injection of the proper amount of a calibration
mixture is performed to achieve the desired compound concentrations. Rinse a
separate 10

L syringe with methanol three times. Discard the methanol from each
rinse according to local regulations. Then, rinse once with the calibration mixture.
Discard this rinse as well. Inject the desired amount of the calibration mixture
through the small end of the sample syringe to complete the calibration standard.