Browsing by Author "Intan Suraya Razak"

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    Monsoonal variations in atmospheric surfactants at different coastal areas of the Malaysian Peninsula
    (Elsevier, 2016) Shoffian Amin Jaafar; Mohd Talib Latif; Intan Suraya Razak; Muhammad Zulhilmi Shaharudin; Md Firoz Khan; Nurul Bahiyah Abd Wahid; Suhaimi Suratman
    This study determined the effect of monsoonal changes on the composition of atmospheric surfactants in coastal areas. The composition of anions (SO42 −, NO3−, Cl−, F−) and the major elements (Ca, K, Mg, Na) in aerosols were used to determine the possible sources of surfactants. Surfactant compositions were determined using a colori-metric method as methylene blue active substances (MBAS) and disulphine blue active substances (DBAS). The anion and major element compositions of the aerosol samples were determined by ion chromatography (IC) and inductively coupled plasma mass spectrometry (ICP-MS), respectively.
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    Surfactants in the sea-surface microlayer and atmospheric aerosol around the southern region of Peninsular Malaysia
    (Elsevier, 2014) Shoffian Amin Jaafar; Mohd Talib Latif; Chong Woan Chian; Wong Sook Han; Nurul Bahiyah Abd Wahid; Intan Suraya Razak; Md Firoz Khan; Norhayati Mohd Tahir
    This study was conducted to determine the composition of surfactants in the sea-surface microlayer (SML) and atmospheric aerosol around the southern region of the Peninsular Malaysia. Surfactants in samples taken from the SML and atmospheric aerosol were determined using a colorimetric method, as either methylene blue active substances (MBAS) or disulphine blue active substances (DBAS).