Sercon supply a range of isotopically labelled gases to cover application areas of all of the commonly measured light stable isotopes, the gases available are shown in the table below.

ElementCalibrated to primary standardRange of δ values (‰)Gases available
CVPBD-70 to +20Air, CO2, CH4
CVPBDOn requestAlkanes and alkenes
OVSMOW-30 to +10CO, CO2, Air
HVSMOW-300 to +100CH4, H2
HVSMOWOn requestAlkanes and alkenes
NAir-20 to +20N2, N2O, NOx, Air
SVCDT-20 to +20SO2, H2S
SVCDT-25 to +25SF6