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Continue to ChatThin-film microextraction coupled to LC-ESI-MS/MS for determination of quaternary ammonium compounds in water samples. - https://avesis.metu.edu.tr/yayin/54ff02e6-bd51-4fc8-9c3e-326da557a08f/thin-film-microextraction-coupled-to-lc-esi-ms-ms-for-determination-of-quaternary-ammonium-compounds-in-water-samples