Salah's expertise lies in the field of metabolomics, instrumentation, and bioinformatics, with a focus on utilizing advanced analytical techniques, particularly high-resolution mass spectrometry to investigate the metabolic signature of biological systems. By employing untargeted metabolomics and quantitative analysis, Salah has been interested in various biological questions relating to environmental impact, perturbed metabolic pathways, disease processes, drug toxicity, and response to therapeutic intervention. In 2012, Salah began his doctoral studies in metabolomics and biomarker discovery under the supervision of Prof. David A. Barrett at the Centre for Analytical Bioscience, University of Nottingham. Throughout his Ph.D., Salah developed diverse methodologies to investigate clinical biomarkers and disrupted metabolic pathways associated with gut microbiota, malaria, and osteoarthritis. Following the completion of his Ph.D., Salah pursued his research career as a BBSRC UK Research Fellow, Beacon of Excellence, University of Nottingham, UK. His work aimed at optimizing bacterial fermentation processes and bioengineering for the production of biofuels and green chemicals.

In subsequent roles as a Research Officer and Facility Manager at the Centre for Analytical Bioscience, Salah was responsible for metabolomics analysis in diverse projects and collaborations spanning clinical, bacterial, agricultural, insect, cell-based metabolomics, and metabolism. Seeking further expertise, Salah joined Pharmaron UK, a specialized pharmaceutical company focused on radiolabelled chemistry and metabolism, where he employed 14C/3H radiotracer analogues for in vitro, in vivo, and clinical investigations. At the beginning of 2023, Salah joined Prof. Shady Amin's lab at NYU Abu Dhabi as a Research Associate. Salah's main interest is to harness metabolomics to better understand coral symbiosis and its adaptation to climate change, as well as diatoms and their interactions with their microbiome and the influence of these relations on climate change. Salah is also involved in various projects and collaborations involving metabolomics and small molecule analyses.