Browsing by Author "Mohamed Rozali Othman"

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemEmbargo
    Assessment of multiresidue pesticides in agricultural soils from Ledang, Malaysia and related potential health risks
    (Technoscience Publications, 2018) Khitam Jaber Nabhan; Wan Mohd Afiq Wan Mohd Khalik; Md Pauzi Abdullah; Mohamed Rozali Othman; Anizan Isahak; Siti Aminah Zulkepli
    The concentration levels of organochlorine and organophosphorus pesticide residues in agriculture soils from paddy field were successfully investigated. Residues were isolated using the Soxhlet extraction method, following a clean-up process (SPE Florosil) and a final determination of targeted compounds performed by using a gas chromatography electron capture detector.
  • Thumbnail Image
    ItemRestricted
    Surfactants in the sea-surface microlayer and their contribution to atmospheric aerosols around coastal areas of the Malaysian peninsula
    (Elsevier, 2010) Razarul Naim Roslan; Norfazrin Mohd Hanif; Mohamed Rozali Othman; Wan Nurul Farah Wan Azmi; Xan Xue Yan; Masni Mohd Ali; Che Abd Rahim Mohamed; Mohd Talib Latif
    A study was done to determine the concentrations of surfactants on the sea-surface microlayer and in atmospheric aerosols in several coastal areas around the Malaysian peninsula. The concentrations of surfactants from the sea-surface microlayer (collected using rotation drum) and from aerosols (collected using HVS) were analyzed as methylene blue active substances and disulphine blue active substances through the colorimetric method using a UV-vis spectrophotometer.