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- W1176010473 abstract "In this work, a sensitive and selective method for the determination of imazalil and its 5selected metabolites in water samples using solid phase extraction (SPE) and liquidchromatography � tandem mass spectrometry (LC-MS/MS) has been developed. Threewater matrices were used, i.e., deionised, surface and waste water. The extractionefficiencies of OASIS HLB, OASIS MCX, Strata X, C18 and C18 polar plus cartridges werechecked in acidic condition. OASIS HLB was then chosen for further experiments due tothe highest recoveries for all target compounds, yielded 97% to 101%. The performanceof analytical instruments, i.e., high performance liquid chromatography-diode arraydetector (HPLC-DAD) and LC-MS/MS, to determine the target compounds werecompared as well using fortification experiments. Results showed that LC-MS/MSdetection gave higher sensitivity and selectivity for all target compounds in comparisonwith HPLC-DAD. The value of method detection limit (MDL) and method quantificationlimit (MQL) for both methods are at concentration of µg L-1and ng L-1for HPLC-DAD andLC-MS/MS, respectively.The evaluation of matrix effects from surface water samples analysed by SPE and LC-MS/MS showed there was an ion suppression phenomenon at low values, -1% to -7%,and thus, it could be neglected. The validation results of SPE and LC-MS/MS methodconsistently demonstrated the accuracy and precision to meet the acceptance criteria, theaccuracy range, -30% to +20%, and the precision value � 20%. In addition, theapplicability of SPE and LC-MS/MS method for screening analysis or identification of thetarget compounds was achieved in this work. Imazalil was found in all investigated wastewater samples from waste water treatment plant (WWTP) Weddel and Steinhof,Germany, both influent and effluent at very low concentration, below the MQL of imazalil." @default.
- W1176010473 created "2016-06-24" @default.
- W1176010473 creator A5023890170 @default.
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- W1176010473 date "2011-01-01" @default.
- W1176010473 modified "2023-09-27" @default.
- W1176010473 title "METHOD DEVELOPMENT FOR THE DETERMINATION OF IMAZALIL AND ITSMETABOLITES IN WATER SAMPLES USING SOLID PHASE EXTRACTIONAND LIQUID CHROMATOGRAPHY â TANDEM MASS SPECTROMETRY" @default.
- W1176010473 hasPublicationYear "2011" @default.
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