Author:Ngulube, T; Gumbo, JR; Masindi, Vhahangwele; Maity, ArjunDate:Oct 2018The ability of calcined magnesite for Methylene Blue (MB), Direct Red 81 (DR81), Methyl Orange (MO) and Crystal Violet (CV) dye removal was evaluated in this study. The experiments were designed to test the hypothesis that alkaline earth ...Read more
Author:Van Tonder, N; Denner, BF; Chang, MSDate:02 Feb 1999A chromaticity comparison took place in order to fulfil the requirements of the mutual recognition agreement (MRA) between the South African National Metrology Laboratory (CSIR/NML) and the Taiwanese National Measurement Laboratory (ITRI/CMS). ...Read more
Author:Raseleka, RM; Human, HGCDate:2004An electro thermal vaporizer (ETV) coupled to a time-of-flight mass spectrometer (TOF-MS) with laser ionization (LI) was applied to the identification of molecules from sulphur and chlorine matrices in the furnace. An interface was developed ...Read more
Author:Apps, PDate:Jun 2006Natural materials are so complex that no single column can separate all of the components. Heart cutting 2-D GC (GC-GC) using a Deans switch provides maximum separation, but the requisite gas flow configurations have earned a reputation for ...Read more
Author:Fatoki, OS; Opeolu, BO; Genthe, Bettina; Olatunji, OSDate:Dec 2018A multi-residue method for the determination of the occurrence and prevalence levels of selected veterinary pharmaceutical residues in surface water was developed on a high performance liquid chromatography coupled to ultraviolet-visible ...Read more