Optimisation And Validation Of A New Microextraction Method Employing Surfactant For The Determination Of Selected Polycyclic Aromatic Hydrocarbons (PAHs) In Sugarcane Samples

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dc.contributor.authorAhmad Shater, Siti Farahiyah
dc.date.accessioned2019-07-17T00:46:43Z
dc.date.available2019-07-17T00:46:43Z
dc.date.issued2016-01
dc.description.abstractIn the present study, a microextraction method termed ultrasound-assisted surfactant enhanced emulsification microextraction (UASEME) has been developed for the determination of phenanthrene (PHE) and fluoranthene (FLU) in sugarcane samples. Optimised extractions were obtained using the following conditions: extraction solvent, toluene; volume of extraction solvent, 30 μL; surfactant, Tween 20; volume of surfactant, 15 μL; extraction time; 2 min and with no salt addition. Under the optimized conditions, the method demonstrated good linearity (r2 ≥ 0.9932) over a concentration range of 1 to 1000 μg L- 1. The method showed limit of detections (LODs) and limit of quantification (LOQs) for both analytes were 0.30μg L- 1 and 1.0 μg L- 1, respectively. Good reproducibility with relative standard deviations (RSDs) in the range of 1.62 – 10.32 % (n = 3) and satisfactory recoveries (91.75 - 104.1%) was obtained for spiked polycyclic aromatic hydrocarbons compounds in sugarcane juice samples. The proposed method has been successfully applied to nine sugarcane samples and the blank extraction samples indicated that all samples were free from FLU but the samples were contaminated with PHE at below the LOQ concentration. The proposed UASEME method proved to be simple, rapid, environmentally friendly and suitable for the determination of PHE and FLU in sugarcane samples.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/8506
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectNew microextraction method employing surfactanten_US
dc.subjectselected polycyclic aromatic hydrocarbonsen_US
dc.titleOptimisation And Validation Of A New Microextraction Method Employing Surfactant For The Determination Of Selected Polycyclic Aromatic Hydrocarbons (PAHs) In Sugarcane Samplesen_US
dc.typeThesisen_US
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