Measurement of Dueterium Abundance in Hydrogen-Dueterium System by Mass Spectrometry

An analyzing method is introduced for accurate measurement of deuterium abundance in the hydrogen-deuterium system by low resolution MAT253 mass spectrometer. The calibration coefficient is determined based on building up an equipment for laboratory-scale preparation of secondary standard gases and considering the sensitivity difference between hydrogen isotopes. The results show that measure value is believable in the relative error range of 0.5% for gas samples of different deuterium abundance.