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N2O in water


Agilent 7890B Series Gas Chromatograph & Agilent 7697A Headspace Sampler

Nitrous oxide (N2O) in water

Methodology

A heaspace is created by gently displacing 10 ml of water by ultra-pure helium in a 20 ml vial. The sample is shaken for 10 min and placed in the headspace sampler for 15 min for gas equilibration at 40 C.  The gas then goes through a 1 ml loop and is transferred to a gas chromatograph equipped with an electron capture detector (GC-ECD) for nitrous oxide measurement.

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