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Keywords = Analytical Chemistry

  • Open Access Research Article
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    Trends Journal of Sciences Research 2018, 3(2), 82-89. http://doi.org/10.31586/AnalyticalChemistry.0302.04
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    Abstract
    In this research, a new nano graphene oxide based solid phase extraction followed by Dispersive Liquid-Liquid Microextraction was applied as simple, rapid and sensitive determination of trace amounts of Propranolol(PRO) in urine samples with HPLC-UVD. Several factors influencing the extraction of PRO, such as pH, adsorbent amounts, extraction time, organic
    [...] Read more.
    In this research, a new nano graphene oxide based solid phase extraction followed by Dispersive Liquid-Liquid Microextraction was applied as simple, rapid and sensitive determination of trace amounts of Propranolol(PRO) in urine samples with HPLC-UVD. Several factors influencing the extraction of PRO, such as pH, adsorbent amounts, extraction time, organic solvent type and the composition of solvent and desorption conditions were studied and optimized. Under optimum condition, the limit of detection (LOD) and limit of quantification (LOQ) of the proposed method were 2ng/mL?1 and 6.6ng/mL, respectively. Good linear behaviour over the investigated concentration ranges (2-2000ng/mL-1) and good correlation coefficient of 0.9901(r2) were obtained. The relative standard deviations (RSDs) based on three determinations at 2, 20, 200ng/ml-1 levels of PRO was less than 9.7 %. The findings of the present study may provide clinical and diagnostic laboratories.  Full article
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