Universal system of gases and vapors composition measurement at atmospheric pressure based on quadrupole mass spectrometer. Superficies y Vacio [Internet]. 2026 Aug. 31 [cited 2026 Aug. 31];39:260801. Available from: http://superficiesyvacio.smctsm.org.mx/index.php/SyV/article/view/2025_syv38_1-250801