and application of methods involving chromatographic (GC and LC), electrophoretic and hyphenated (GC-MS and LC-MS) techniques He also works with the development, optimization and validation of new analytical methodologies, with special emphasis on modern approaches of sample preparation, namely solid phase extraction (SPE), solid phase microextraction (SPME) and sorbent extraction in the stir bar (SBSE) followed by chromatographic analysis, being his main research lines. Recently, he is involved in the development of innovative analytical strategies based on sorption microextraction techniques, which leads to the vestigial analysis of priority compounds in several types of complex matrices.

https://www.scopus.com/authid/detail.uri?authorId=7102978177

h-index: 37                                                                       Documents by author: more than 130

Important publications:

1. Samir, M. Ahmad, High Throughput Bar Adsorptive Microextraction: A novel cost-effective tool for monitoring benzodiazepines in large number of biological samples, Talanta, in press, January 2019.

2. Gokhan Zengin, Ahmet Uysal, Abdurrahman Aktumsek, Andrei Mocan, Adriano Mollica, Marcello Locatelli, Luisa Custodio, Nuno R. Neng, José M. F. Nogueira, Zaahira Aumeeruddy-Elalfi, Fawzi Mahomoodally, Euphorbia denticulata Lam.: A promising source of phyto-pharmaceuticals for the development of novel functional formulations, Biomedicine & Pharmacotherapy, Volume 87, march 2017, Pages 27-36.

3. Alessandra H. Ide, Nuno R. Neng, José M. F. Nogueira, Enhancement for trace analysis of sulfonamide antibiotics in water matrices using bar adsorptive microextraction (BAμE), Journal of Pharmaceutical and Biomedical Analysis, Volume 129, 10 September 2016, Pages 593-599.