samples treated samples used samples were analysed samples were analyzed samples were assayed samples were centrifuged samples were collected samples were drawn samples were found samples were obtained samples were prepared samples were subjected samples were submitted samples were taken samples were thawed samples when samples where samples will be sent samples would sampling sampling and analysis sampling and laboratory sampling and testing sampling approach sampling can sampling circuit sampling clock sampling data sampling design sampling device sampling devices sampling distribution sampling equipment sampling error sampling errors sampling fraction sampling frame sampling frequencies sampling frequency sampling inspection sampling interval sampling intervals sampling line sampling location sampling locations sampling may sampling means sampling method sampling methodology sampling methods sampling module sampling needle sampling period sampling periods sampling plan sampling plans sampling point sampling points sampling port sampling probe sampling procedure sampling procedures sampling process sampling program sampling pump sampling rate sampling rates sampling results sampling should sampling signal sampling site sampling sites sampling station sampling stations sampling strategies sampling strategy sampling survey sampling system sampling systems sampling technique sampling techniques sampling theorem sampling time sampling unit sampling units sampling valve samplings sampo sampradaya sampras sampson samra samrat sams samsa samsam samsara saṃsāra samsca