Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/tmp/cache/skel/html_68cc9b27fda47dcebc6fab56491cb74f.php on line 25
TY - JOUR TI - Evaluation of Sample Preparation Methods for Non-Target Screening of Organic Micropollutants in Urban Waters Using High-Resolution Mass Spectrometry AU - Huynh, Nina AU - Caupos, Emilie AU - Soares Peirera, Caroline AU - Le Roux, Julien AU - Bressy, Adèle AU - Moilleron, Régis T2 - Molecules AB - Non-target screening (NTS) has gained interest in recent years for environmental monitoring purposes because it enables the analysis of a large number of pollutants without predefined lists of molecules. However, sample preparation methods are diverse, and few have been systematically compared in terms of the amount and relevance of the information obtained by subsequent NTS analysis. The goal of this work was to compare a large number of sample extraction methods for the unknown screening of urban waters. Various phases were tested for the solid-phase extraction of micropollutants from these waters. The evaluation of the different phases was assessed by statistical analysis based on the number of detected molecules, their range, and physicochemical properties (molecular weight, standard recoveries, polarity, and optical properties). Though each cartridge provided its own advantages, a multilayer cartridge combining several phases gathered more information in one single extraction by benefiting from the specificity of each one of its layers. DA - 2021/01// PY - 2021 DO - 10.3390/molecules26237064 DP - www.mdpi.com VL - 26 IS - 23 SP - 7064 LA - en PB - Multidisciplinary Digital Publishing Institute UR - https://www.mdpi.com/1420-3049/26/23/7064 Y2 - 2021/11/23/11:11:25 KW - emerging contaminants KW - high-resolution mass spectrometry KW - micropollutant fingerprint KW - non-target screening KW - solid phase extraction KW - statistical analysis KW - urban waters ER -