{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T05:07:47Z","timestamp":1789016867588,"version":"build-2803163510"},"reference-count":35,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T00:00:00Z","timestamp":1788825600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100016047","name":"Science Fund of the Republic of Serbia","doi-asserted-by":"crossref","award":["7335"],"award-info":[{"award-number":["7335"]}],"id":[{"id":"10.13039\/501100016047","id-type":"DOI","asserted-by":"crossref"}]},{"award":["7335"],"award-info":[{"award-number":["7335"]}],"id":[{"id":"https:\/\/ror.org\/02r531a15","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004564","name":"Ministry of Education, Science and Technological Development of the Republic of Serbia","doi-asserted-by":"crossref","award":["451-03-33\/2026-03\/200358"],"award-info":[{"award-number":["451-03-33\/2026-03\/200358"]}],"id":[{"id":"10.13039\/501100004564","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Continuous, real-time monitoring of volatile organic compounds (VOCs) in surface water is critical for environmental protection, yet conventional laboratory Gas Chromatography\u2013Mass Spectrometry (GC-MS) suffers from analyte loss during sample transport. This study field-validates a portable Membrane Inlet Mass Spectrometry (MIMS) system for direct, on-site monitoring of seven target VOCs (benzene, toluene, xylenes, chlorobenzene, 1,2-dichloroethane, trichloroethylene, and tetrachloroethylene). Laboratory validation established limits of detection between 4 and 8 \u00b5g\/L, linearity (R2 &gt; 0.98), and acceptable precision and accuracy per AOAC guidelines, benchmarked against headspace GC-MS. In-field testing at 36 locations across the Danube\u2013Tisa\u2013Danube (DTD) irrigation canal demonstrated system robustness. Baseline canal samples remained below the detection limits, but real-time MIMS successfully identified localized benzene and toluene contamination near a gasoline station. On-site MIMS detected higher VOC concentrations than delayed laboratory GC-MS, demonstrating its key advantage in preventing sampling volatilization losses. Portable MIMS proves to be a powerful, rapid screening tool for continuous aquatic environmental monitoring.<\/jats:p>","DOI":"10.3390\/molecules31183164","type":"journal-article","created":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T14:55:46Z","timestamp":1788879346000},"page":"3164","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Portable Mass Spectrometry for In-Field Real-Time Water Pollution Monitoring: Validation and Pilot Study in Danube\u2013Tisa\u2013Danube Irrigation System"],"prefix":"10.3390","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7055-9307","authenticated-orcid":false,"given":"Djordje","family":"Vuji\u0107","sequence":"first","affiliation":[{"name":"BioSense Institute, University of Novi Sad, Dr Zorana \u0110in\u0111i\u0107a 1, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"software","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1912-1702","authenticated-orcid":false,"given":"Milena","family":"Aleksi\u0107","sequence":"additional","affiliation":[{"name":"BioSense Institute, University of Novi Sad, Dr Zorana \u0110in\u0111i\u0107a 1, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"software","vocabulary":"credit"},{"role":"validation","vocabulary":"credit"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6794-9411","authenticated-orcid":false,"given":"Daria","family":"Ili\u0107","sequence":"additional","affiliation":[{"name":"BioSense Institute, University of Novi Sad, Dr Zorana \u0110in\u0111i\u0107a 1, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"validation","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2427-7154","authenticated-orcid":false,"given":"Boris","family":"Brki\u0107","sequence":"additional","affiliation":[{"name":"BioSense Institute, University of Novi Sad, Dr Zorana \u0110in\u0111i\u0107a 1, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"resources","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"},{"role":"project-administration","vocabulary":"credit"},{"role":"funding-acquisition","vocabulary":"credit"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1016\/j.sjbs.2010.04.002","article-title":"Estimation of BTEX in Groundwater by Using Gas Chromatography\u2013Mass Spectrometry","volume":"17","author":"Kamal","year":"2010","journal-title":"Saudi J. 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