2018 AIChE Annual Meeting

(490g) Towards an Ultrasensitive Method for the Quantification of Metal Ions Using Surface-Enhanced Infrared Absorption Spectroscopy

Authors

Xuan Yang - Presenter, University of Delaware
Marco Dunwell, University of Delaware
Bingjun Xu, University of Delaware
Yushan Yan, University of Delaware
We have developed an ultrasensitive method for the quantification of metal ions using attenuated total reflectance surface enhanced infrared absorption spectroscopy (ATR-SEIRAS). The detection limit of metal ions is as low as 10 ppq, which is two orders of magnitude lower than that of currently used ICP-MS/electrochemical methods and thus provides a more sensitive approach to understanding of the structure-stability relationships of catalysts at atomic level.