The workshop entitled "Analysis of Organic Pollutants in Water Samples by Twister GC-MS/MS" was held at TUBITAK Marmara Research Center Environment and Cleaner Production Institute and SEM Laboratory Equipments on October 25, 2016. In this one-day event, invited speakers Pieter Stoutjesdijk (Gerstel, Germany), David Benanou (Veolia Environnement, France), Nihat Öztürk and Kartal Çetintürk (SEM, Turkey) and Dr. Oltan Canlı (TÜBİTAK MRC) informed the participants, from the relevant private, government and university laboratories, about the latest developments in sample preparation for Twister GC-MS/MS analyses. The workshop with the twister applications performed in water samples was a big success.