▎ 摘　　要

In this review we shortly discuss about the graphene and graphene-based materials synthesis and present the recent year's research progress (2017-2019) in the enhancement of the analytical performance of sensors and biosensors. Particularly, we covered a very broad range of graphene-based electrochemical sensors and biosensors for the detection of glucose, cholesterol, dopamine (DA), ascorbic acid (AA), uric acid (UA), bisphenol A (BPA), cancer biomarkers and heavy metal ions. We believe that the discussed subjects are useful and may be used as an instruction guide for the future developments in the field of graphene and graphene-based materials for sensors and biosensors. (C) The Author(s) 2019. Published by ECS.