Ukutholwa Kwe-Atomic Absorption Ukuhlolwa Kwe-Liquid Okusebenza Kakhulu I-incubator Izinsiza Zokwenza I-Pellet Ukutholwa Kwesimo Sezulu Isibonakhulu I-Multifunctional Microbial Assay Umtshina wezinhlayiyana Isikhungo Sokuhlola