https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Application of catalysts and nanomaterials in the design of an electrochemical sensor for ochratoxin A https://vital.seals.ac.za/vital/access/manager/Repository/vital:4121 Wed 12 May 2021 18:17:29 SAST ]]> Solid-phase extraction based sample preparation for the determination of drug and organic pollutant residue https://vital.seals.ac.za/vital/access/manager/Repository/vital:4406 0.9990) was attained for most analytes. The limits of detection and quantification ranged from 0.03 - 0.84 μg/ml and 0.81 - 1.89 μg/ml respectively for analytes in biological samples. LODs and LOQs for analytes in food and environmental samples ranged from 0.02 to 0.39 and 0.25 to 1.30 ng/g respectively.]]> Wed 12 May 2021 17:31:55 SAST ]]>