Browsing by Author "Siti Quistina Noorain Abdul Razak"

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    Occurrence of selected estrogenic compounds and estrogenic activity in surface water and sediment of Langat River (Malaysia)
    (Springer, 2016) Sarva Mangala Praveena; Tang Seok Lui; Nur Aqilah Hamin; Siti Quistina Noorain Abdul Razak; Ahmad Zaharin Aris
    The occurrence and estrogenic activities of steroid estrogens, such as the natural estrone (E1), 17β estradiol (E2), and estriol (E3), as well as the synthetic 17α-ethynylestradiol(EE2), were investigated in eight sampling points along the Langat River (Malaysia). Surface water samples were collected at 0.5 m and surface sediment 0-5 cm from the river surface. Instrument analysis of steroid estrogens was determined by UPLC-ESI-MS with an ultra-performance liquid chromatograph (Perkin Elmer FX15) coupled to a Q Trap function mass spectrophotometer