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oai:gredos.usal.es:10366/1552292026-01-14T09:53:31Zcom_10366_4182com_10366_4055com_10366_3946com_10366_3823col_10366_4183

Cortés-Bautista, S. Navarro-Utiel, R. Ballester Caudet, Ana Campíns-Falcó, P. Portable Miniaturized liquid chromatography Water analysis Biocides BETTER criteria HEXAGON tool [EN] Solving and/or evaluating given problems or decision making in place and in real time is a goal of the an- alytical chemistry science. In this context, the performance of a commercial portable miniaturized liquid chromatograph (minLC) with LED UV (255 nm) detector was compared with those provided by two lab minLCs (capillary and nano) coupled on-line to in-valve in-tube solid phase microextraction (IT-SPME) with diode array detector (DAD). In addition, responses of the portable LC for in-field analysis in sev- eral conditions were tested. Besides, two evaluation tools, BETTER criteria for portability and HEXAGON pictogram for sustainability and greenness were applied for comparison purposes. The benchtop LCs pro- vided lower limits of detection (LODs) as expected, in the order of low μg/L, than those achieved by the portable LC, with LODs around mg/L for compounds covering several polarities (logKow between -1.72 and 3.82). The used portable LC gave excellent resolution, reducing the analysis time and being the consumption of solvents negligible. As a practical application, fruit washing residual waters, which contained a suitable level of concentrations of several biocides for employing the portable minLC, were analyzed and quantified from the three minLCs as a proof of concept with comparable results. 2024-02-02 2024-02-02 2022 info:eu-repo/semantics/article S. Cortés-Bautista, R. Navarro-Utiel, A. Ballester-Caudet, P. Campíns-Falcó, Towards in field miniaturized liquid chromatography: Biocides in wastewater as a proof of concept, Journal of Chromatography A, Volume 1673, 2022, 463119, ISSN 0021-9673, https://doi.org/10.1016/j.chroma.2022.463119. (https://www.sciencedirect.com/science/article/pii/S0021967322003120) 0021-9673 http://hdl.handle.net/10366/155229 10.1016/j.chroma.2022.463119 eng https://doi.org/10.1016/j.chroma.2022.463119 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier