Изучение показателей сердечно-сосудистой системы у врачей-стоматологов в условиях современной профессиональной деятельности

Preconcentration of methane (CH4) from air is a critical sampling step in the measurement of singly and doubly substituted isotopologue ratios. We demonstrate the potential for isotope fractionation during preconcentration onto and elution from the common trapping material HayeSep-D and investigate ... View More