https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 The use of response surface methodology to evaluate the impact of level 2 SUPAC–IR changes on the in vitro release of metronidazole and ranitidine from a fixed-dose combination tablet https://vital.seals.ac.za/vital/access/manager/Repository/vital:6391 Wed 12 May 2021 18:27:34 SAST ]]> Pre-concentration of toxic metals using electrospun amino-functionalized nylon-6 nanofibre sorbent https://vital.seals.ac.za/vital/access/manager/Repository/vital:6571 adsorption (0.34)>HNO3+H2O2 (0.23) digestion.Asimilar trend was observed for Ni in river water as well as Ni andCdin tap water samples. Pb ions in the river water samples were pre-concentrated slightly better using the two digestion methods pre-concentration factors ~22) compared to adsorption method (pre-concentration factor ~21). The use of the electrospun amino-functionalized nanofibre sorbent presentsanefficientand cost-effective alternative for pre-concentration of toxic metals inaqueousenvironments.]]> Thu 20 Jul 2023 10:26:00 SAST ]]>