The University of Antwerp, together with other relevant entities, has recently participated in a research that involves a novel strategy for electrochemical detection of MDMA and 2C-B in ecstasy pills. The applicability of the approach was demonstrated with 71 ecstasy tablets seized by the Amsterdam police. Most notably, correct results were also obtained for dark colored tablets in which both spectroscopic analysis and colorimetric tests failed due to obscured signals.
The full article with the results of this research can be found here. It has also been published in Forensic Chemistry.