The team of Dr. Long Li and the team of Professor Qian Yi from the School of Environment of Qingdao University of Science and Technology have made new progress in the field of heavy metal detection
By: Date: 2021-04-17 Categories: foodtechnology Tags: ,
  The concentration of metal ions in environmental water bodies is an important water quality indicator. The excessive content of heavy metal ions in water bodies such as Cu2+ and Hg2+ seriously threaten the safety of aquatic ecosystems. Polymer membrane ion-selective electrodes are widely used for real-time and rapid monitoring of environmental pollutants because of their high sensitivity, low cost, and easy miniaturization. It is one of the important research directions in the field of environmental science. Although a variety of heavy metal ion selective electrodes have been reported, these sensors still cannot fully meet the existing analysis and testing requirements due to poor selectivity.
  Recently, the team of young teachers from the School of Environment, Dr. Long Li and Professor Yi Qian’s team based on the previous research work (Analytical Chemistry, 2020, 92(21):14740-14746; ACS Sensors, 2020, 5(11):3465-3473; Sensors and Actuators B:Chemical, 2020, 129151; ACS Sensors, 2020, DOI:10.1021/acssensors.0c02231), developed a variety of metal ion carriers and constructed corresponding ion selective electrodes.”Intramolecularly hydrogen-bonded cavity containing macrocyclic/acyclic aromatic pyridone foldarands as modularly tunable ionophores for selective potentiometric sensing of metal ions” was published internationally Classic journal Sensors and Actuators B:Chemical (Top journal in District 1, IF=7.1).
  The article uses pyridone as the basic structural unit to construct an ionophore with high selectivity and strong binding ability to Cu2+, Hg2+, and K+, and constructs a highly selective ion selective electrode based on this. The experimental results show that the developed new ion selective electrode has good selectivity and sensitivity. At present, the sensor has been successfully used for the determination of Cu2+, Hg2+, and K+ content in industrial wastewater and bottled water. Articles related to this progress have Qingdao University of Science and Technology as the first unit, and Dr. Li Long from the School of Environment as the corresponding author and first author of the paper.
   The work was supported by the Shandong Provincial Key Research and Development Program, Shandong Provincial Natural Science Foundation, Qingdao Basic Innovation Special and National Key Laboratory, Chinese Academy of Sciences Key Laboratory, Eco-Chemical Collaborative Innovation Center and Qingdao University of Science and Technology Department of Chemistry and other projects. .
   link to the paper: