Massoud Kaykhaii is a professor of analytical chemistry, working at the University of Sistan and Baluchestan (Zahedan, Iran) since 1989. His research work is focused on modern sample preparation techniques including µ-solid phase extraction, solid phase microextraction, liquid phase microextraction and stir bar sorptive extraction. He has published 148 research articles; 3 patents; presented ca. 146 seminars/conferences; authored two textbooks, wrote 22 national standard procedure of analysis, and (co)supervised more than 100 MSc and PhD theses. He is a member of editorial advisory board of 97 journals and acted as secretary of three national mirror committees of ISO/TC for years. He finished 25 industrial projects and has been counsellor in 10 companies in Iran. In 2017 and 2020 he was awarded the prize of best researcher of the University of Sistan and Baluchestan. Publons recognized him four times as \"top 1 percent of top reviewers\" in multidisciplinary, cross-field and in chemistry in 2017, 2018 and 2019, respectively. Currently, he is head of chemistry department and the chairman of Smartphone Analytical Sensors Research Centre.