Okonkwo, JO

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Results 1-4 of 4 (Search time: 0.013 seconds).

Issue DateTitleAuthor(s)
12015A simplified analytical procedure for simultaneous determination of alkylphenol ethoxylates and brominated flame retardants in fish tissue samples from Vaal River, South Africa.Chokwe, Tlou. B ; Okonkwo, Jonathan. O ; Sibali, Linda. L ; Kruger, Elmari ; du Preez, Hein ; Hariram, Reveck ; Ncube, Esper Jacobeth 
22012Optimization and simultaneous determination of alkyl phenol ethoxylates and brominated flame retardants in water after SPE and heptafluorobutyric anhydride derivatization followed by GC/MSChokwe, Tlou. B ; Okonkwo, Jonathan. O ; Sibali, Linda. L ; Ncube, Esper Jacobeth 
32015An integrated method for the simultaneous determination of alkylphenol ethoxylates and brominated flame retardants in sewage sludge samples by ultrasonic-assisted extraction, solid phase clean-up, and GC-MS analysisChokwe, Tlou. B ; Okonkwo, Jonathan. O ; Sibali, Linda. L ; Ncube, Esper Jacobeth 
42013Determination of selected phthalate esters compounds in water and sediments by capillary gas chromatography and flame ionization detectorSibali, LL ; Okonkwo, JO ; McCrindle, RI 

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Okonkwo, JO
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